├── .gitignore ├── .idea ├── .name ├── compiler.xml ├── copyright │ └── profiles_settings.xml ├── encodings.xml ├── gradle.xml ├── libraries │ ├── Gradle__junit_junit_4_11.xml │ └── Gradle__org_hamcrest_hamcrest_core_1_3.xml ├── misc.xml ├── modules.xml ├── scopes │ └── scope_settings.xml ├── uiDesigner.xml ├── vcs.xml └── workspace.xml ├── DesignPatterns.iml ├── README.md ├── build.gradle ├── gradle └── wrapper │ ├── gradle-wrapper.jar │ └── gradle-wrapper.properties ├── gradlew ├── gradlew.bat ├── settings.gradle └── src └── com └── baron └── patterns ├── adapter ├── AdapterPatternTest.java ├── README.md ├── adaptee │ ├── Turkey.java │ └── WildTurkey.java ├── adapter │ └── TurkeyAdapter.java └── target │ ├── Duck.java │ └── MallardDuck.java ├── command ├── CommandPatternTest.java ├── README.md ├── command │ ├── Command.java │ ├── LightOffCommand.java │ ├── LightOnCommand.java │ ├── StereoOffWithCDCommand.java │ └── StereoOnWithCDCommand.java ├── executor │ └── RemoteControl.java └── requester │ ├── Light.java │ └── Stereo.java ├── composite └── README.md ├── compound ├── DuckSimulator.java ├── README.md ├── adapter │ └── GooseAdapter.java ├── composite │ └── Flock.java ├── decorator │ └── QuackCounter.java ├── factory │ ├── AbstractDuckFactory.java │ ├── CountingDuckFactory.java │ └── DuckFactory.java ├── model │ ├── DuckCall.java │ ├── Goose.java │ ├── MallardDuck.java │ ├── Quackable.java │ ├── RedheadDuck.java │ └── RubberDuck.java └── observer │ ├── Observer.java │ └── QuackObservable.java ├── decorator ├── DecoratorPatternTest.java ├── README.md ├── component │ ├── Beverage.java │ ├── DarkRoast.java │ └── Decaf.java └── decorator │ ├── CondimentDecorator.java │ ├── Mocha.java │ └── Whip.java ├── facade ├── FacadePatternTest.java └── README.md ├── factory ├── FactoryPatternTest.java ├── README.md ├── factory │ ├── ChicagoPizzaStore.java │ ├── NYPizzaStore.java │ └── PizzaStore.java └── product │ ├── ChicagoStyleCheesePizza.java │ ├── ChicagoStyleClamPizza.java │ ├── NYStyleCheesePizza.java │ ├── NYStyleClamPizza.java │ └── Pizza.java ├── iterator └── README.md ├── observer ├── ObserverPatternTest.java ├── README.md ├── observer │ ├── CurrentConditionsDisplay.java │ ├── DisplayElement.java │ ├── ForecastDisplay.java │ └── Observer.java └── subject │ ├── Subject.java │ └── WeatherData.java ├── package-info.java ├── proxy ├── MyRemote.java ├── MyRemoteImpl.java └── README.md ├── singleton ├── README.md └── Singleton.java ├── state ├── README.md ├── StatePatternTest.java └── state │ ├── GumballMachine.java │ ├── HasQuarterState.java │ ├── NoQuarterState.java │ ├── SoldOutState.java │ ├── SoldState.java │ └── State.java ├── strategy ├── Duck.java ├── MallardDuck.java ├── README.md ├── StrategyPatternTest.java └── behavior │ ├── FlyBehavior.java │ ├── QuackBehavior.java │ └── impl │ ├── FlyNoWay.java │ ├── FlyWithWings.java │ ├── MuteQuack.java │ ├── Quack.java │ └── Squeak.java └── template └── README.md /.gitignore: -------------------------------------------------------------------------------- 1 | # Built application files 2 | *.apk 3 | *.ap_ 4 | 5 | # Files for the Dalvik VM 6 | *.dex 7 | 8 | # Java class files 9 | *.class 10 | 11 | # Generated files 12 | bin/ 13 | gen/ 14 | 15 | # Gradle files 16 | .gradle/ 17 | build/ 18 | /*/build/ 19 | 20 | # Local configuration file (sdk path, etc) 21 | local.properties 22 | 23 | # Proguard folder generated by Eclipse 24 | proguard/ 25 | 26 | # Log Files 27 | *.log -------------------------------------------------------------------------------- /.idea/.name: -------------------------------------------------------------------------------- 1 | DesignPatterns -------------------------------------------------------------------------------- /.idea/compiler.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 23 | -------------------------------------------------------------------------------- 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-------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | #Design Patterns 2 | > 设计模型学习笔记 -------------------------------------------------------------------------------- /build.gradle: -------------------------------------------------------------------------------- 1 | apply plugin: 'java' 2 | 3 | sourceCompatibility = 1.5 4 | version = '1.0' 5 | 6 | repositories { 7 | mavenCentral() 8 | } 9 | 10 | dependencies { 11 | testCompile group: 'junit', name: 'junit', version: '4.11' 12 | } -------------------------------------------------------------------------------- /gradle/wrapper/gradle-wrapper.jar: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/BaronZ88/DesignPatterns/7f83069e6056cd486bb62c39cd2e8eeb89a0ecf8/gradle/wrapper/gradle-wrapper.jar -------------------------------------------------------------------------------- /gradle/wrapper/gradle-wrapper.properties: -------------------------------------------------------------------------------- 1 | #Mon Dec 14 10:44:21 CST 2015 2 | distributionBase=GRADLE_USER_HOME 3 | distributionPath=wrapper/dists 4 | zipStoreBase=GRADLE_USER_HOME 5 | zipStorePath=wrapper/dists 6 | distributionUrl=https\://services.gradle.org/distributions/gradle-2.1-bin.zip 7 | -------------------------------------------------------------------------------- /gradlew: -------------------------------------------------------------------------------- 1 | #!/usr/bin/env bash 2 | 3 | ############################################################################## 4 | ## 5 | ## Gradle start up script for UN*X 6 | ## 7 | ############################################################################## 8 | 9 | # Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script. 10 | DEFAULT_JVM_OPTS="" 11 | 12 | APP_NAME="Gradle" 13 | APP_BASE_NAME=`basename "$0"` 14 | 15 | # Use the maximum available, or set MAX_FD != -1 to use that value. 16 | MAX_FD="maximum" 17 | 18 | warn ( ) { 19 | echo "$*" 20 | } 21 | 22 | die ( ) { 23 | echo 24 | echo "$*" 25 | echo 26 | exit 1 27 | } 28 | 29 | # OS specific support (must be 'true' or 'false'). 30 | cygwin=false 31 | msys=false 32 | darwin=false 33 | case "`uname`" in 34 | CYGWIN* ) 35 | cygwin=true 36 | ;; 37 | Darwin* ) 38 | darwin=true 39 | ;; 40 | MINGW* ) 41 | msys=true 42 | ;; 43 | esac 44 | 45 | # For Cygwin, ensure paths are in UNIX format before anything is touched. 46 | if $cygwin ; then 47 | [ -n "$JAVA_HOME" ] && JAVA_HOME=`cygpath --unix "$JAVA_HOME"` 48 | fi 49 | 50 | # Attempt to set APP_HOME 51 | # Resolve links: $0 may be a link 52 | PRG="$0" 53 | # Need this for relative symlinks. 54 | while [ -h "$PRG" ] ; do 55 | ls=`ls -ld "$PRG"` 56 | link=`expr "$ls" : '.*-> \(.*\)$'` 57 | if expr "$link" : '/.*' > /dev/null; then 58 | PRG="$link" 59 | else 60 | PRG=`dirname "$PRG"`"/$link" 61 | fi 62 | done 63 | SAVED="`pwd`" 64 | cd "`dirname \"$PRG\"`/" >&- 65 | APP_HOME="`pwd -P`" 66 | cd "$SAVED" >&- 67 | 68 | CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar 69 | 70 | # Determine the Java command to use to start the JVM. 71 | if [ -n "$JAVA_HOME" ] ; then 72 | if [ -x "$JAVA_HOME/jre/sh/java" ] ; then 73 | # IBM's JDK on AIX uses strange locations for the executables 74 | JAVACMD="$JAVA_HOME/jre/sh/java" 75 | else 76 | JAVACMD="$JAVA_HOME/bin/java" 77 | fi 78 | if [ ! -x "$JAVACMD" ] ; then 79 | die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME 80 | 81 | Please set the JAVA_HOME variable in your environment to match the 82 | location of your Java installation." 83 | fi 84 | else 85 | JAVACMD="java" 86 | which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. 87 | 88 | Please set the JAVA_HOME variable in your environment to match the 89 | location of your Java installation." 90 | fi 91 | 92 | # Increase the maximum file descriptors if we can. 93 | if [ "$cygwin" = "false" -a "$darwin" = "false" ] ; then 94 | MAX_FD_LIMIT=`ulimit -H -n` 95 | if [ $? -eq 0 ] ; then 96 | if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then 97 | MAX_FD="$MAX_FD_LIMIT" 98 | fi 99 | ulimit -n $MAX_FD 100 | if [ $? -ne 0 ] ; then 101 | warn "Could not set maximum file descriptor limit: $MAX_FD" 102 | fi 103 | else 104 | warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT" 105 | fi 106 | fi 107 | 108 | # For Darwin, add options to specify how the application appears in the dock 109 | if $darwin; then 110 | GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\"" 111 | fi 112 | 113 | # For Cygwin, switch paths to Windows format before running java 114 | if $cygwin ; then 115 | APP_HOME=`cygpath --path --mixed "$APP_HOME"` 116 | CLASSPATH=`cygpath --path --mixed "$CLASSPATH"` 117 | 118 | # We build the pattern for arguments to be converted via cygpath 119 | ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null` 120 | SEP="" 121 | for dir in $ROOTDIRSRAW ; do 122 | ROOTDIRS="$ROOTDIRS$SEP$dir" 123 | SEP="|" 124 | done 125 | OURCYGPATTERN="(^($ROOTDIRS))" 126 | # Add a user-defined pattern to the cygpath arguments 127 | if [ "$GRADLE_CYGPATTERN" != "" ] ; then 128 | OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)" 129 | fi 130 | # Now convert the arguments - kludge to limit ourselves to /bin/sh 131 | i=0 132 | for arg in "$@" ; do 133 | CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -` 134 | CHECK2=`echo "$arg"|egrep -c "^-"` ### Determine if an option 135 | 136 | if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then ### Added a condition 137 | eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"` 138 | else 139 | eval `echo args$i`="\"$arg\"" 140 | fi 141 | i=$((i+1)) 142 | done 143 | case $i in 144 | (0) set -- ;; 145 | (1) set -- "$args0" ;; 146 | (2) set -- "$args0" "$args1" ;; 147 | (3) set -- "$args0" "$args1" "$args2" ;; 148 | (4) set -- "$args0" "$args1" "$args2" "$args3" ;; 149 | (5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;; 150 | (6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;; 151 | (7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;; 152 | (8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;; 153 | (9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;; 154 | esac 155 | fi 156 | 157 | # Split up the JVM_OPTS And GRADLE_OPTS values into an array, following the shell quoting and substitution rules 158 | function splitJvmOpts() { 159 | JVM_OPTS=("$@") 160 | } 161 | eval splitJvmOpts $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS 162 | JVM_OPTS[${#JVM_OPTS[*]}]="-Dorg.gradle.appname=$APP_BASE_NAME" 163 | 164 | exec "$JAVACMD" "${JVM_OPTS[@]}" -classpath "$CLASSPATH" org.gradle.wrapper.GradleWrapperMain "$@" 165 | -------------------------------------------------------------------------------- /gradlew.bat: -------------------------------------------------------------------------------- 1 | @if "%DEBUG%" == "" @echo off 2 | @rem ########################################################################## 3 | @rem 4 | @rem Gradle startup script for Windows 5 | @rem 6 | @rem ########################################################################## 7 | 8 | @rem Set local scope for the variables with windows NT shell 9 | if "%OS%"=="Windows_NT" setlocal 10 | 11 | @rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script. 12 | set DEFAULT_JVM_OPTS= 13 | 14 | set DIRNAME=%~dp0 15 | if "%DIRNAME%" == "" set DIRNAME=. 16 | set APP_BASE_NAME=%~n0 17 | set APP_HOME=%DIRNAME% 18 | 19 | @rem Find java.exe 20 | if defined JAVA_HOME goto findJavaFromJavaHome 21 | 22 | set JAVA_EXE=java.exe 23 | %JAVA_EXE% -version >NUL 2>&1 24 | if "%ERRORLEVEL%" == "0" goto init 25 | 26 | echo. 27 | echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. 28 | echo. 29 | echo Please set the JAVA_HOME variable in your environment to match the 30 | echo location of your Java installation. 31 | 32 | goto fail 33 | 34 | :findJavaFromJavaHome 35 | set JAVA_HOME=%JAVA_HOME:"=% 36 | set JAVA_EXE=%JAVA_HOME%/bin/java.exe 37 | 38 | if exist "%JAVA_EXE%" goto init 39 | 40 | echo. 41 | echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME% 42 | echo. 43 | echo Please set the JAVA_HOME variable in your environment to match the 44 | echo location of your Java installation. 45 | 46 | goto fail 47 | 48 | :init 49 | @rem Get command-line arguments, handling Windowz variants 50 | 51 | if not "%OS%" == "Windows_NT" goto win9xME_args 52 | if "%@eval[2+2]" == "4" goto 4NT_args 53 | 54 | :win9xME_args 55 | @rem Slurp the command line arguments. 56 | set CMD_LINE_ARGS= 57 | set _SKIP=2 58 | 59 | :win9xME_args_slurp 60 | if "x%~1" == "x" goto execute 61 | 62 | set CMD_LINE_ARGS=%* 63 | goto execute 64 | 65 | :4NT_args 66 | @rem Get arguments from the 4NT Shell from JP Software 67 | set CMD_LINE_ARGS=%$ 68 | 69 | :execute 70 | @rem Setup the command line 71 | 72 | set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar 73 | 74 | @rem Execute Gradle 75 | "%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS% 76 | 77 | :end 78 | @rem End local scope for the variables with windows NT shell 79 | if "%ERRORLEVEL%"=="0" goto mainEnd 80 | 81 | :fail 82 | rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of 83 | rem the _cmd.exe /c_ return code! 84 | if not "" == "%GRADLE_EXIT_CONSOLE%" exit 1 85 | exit /b 1 86 | 87 | :mainEnd 88 | if "%OS%"=="Windows_NT" endlocal 89 | 90 | :omega 91 | -------------------------------------------------------------------------------- /settings.gradle: -------------------------------------------------------------------------------- 1 | rootProject.name = 'DesignPatterns' 2 | 3 | -------------------------------------------------------------------------------- /src/com/baron/patterns/adapter/AdapterPatternTest.java: -------------------------------------------------------------------------------- 1 | package com.baron.patterns.adapter; 2 | 3 | import com.baron.patterns.adapter.adaptee.WildTurkey; 4 | import com.baron.patterns.adapter.adapter.TurkeyAdapter; 5 | import com.baron.patterns.adapter.target.Duck; 6 | import com.baron.patterns.adapter.target.MallardDuck; 7 | 8 | /** 9 | * @author Baron Zhang (baron[dot]zhanglei[at]gmail[dot]com) 10 | * @version 1.0 11 | * @since 1.0 12 | */ 13 | public class AdapterPatternTest { 14 | 15 | public static void main(String[] args) { 16 | 17 | MallardDuck duck = new MallardDuck(); 18 | WildTurkey turkey = new WildTurkey(); 19 | 20 | TurkeyAdapter adapter = new TurkeyAdapter(turkey); 21 | 22 | System.out.println("==========火鸡==========="); 23 | turkey.gobble(); 24 | turkey.fly(); 25 | 26 | System.out.println("\n==========鸭子==========="); 27 | testDuck(duck); 28 | 29 | System.out.println("\n==========适配器==========="); 30 | testDuck(adapter); 31 | } 32 | 33 | static void testDuck(Duck duck) { 34 | duck.quack(); 35 | duck.fly(); 36 | } 37 | } 38 | -------------------------------------------------------------------------------- /src/com/baron/patterns/adapter/README.md: -------------------------------------------------------------------------------- 1 | #适配器模式(AdapterPattern) 2 | 3 | ####定义： 4 | > 将一个类的接口，转换成客户期望的另一个接口。适配器让原本接口不兼容的类可以合作无间。 5 | 6 | ###设计原则 7 | 1. 8 | 9 | 10 | ###类图 11 | 12 | 13 | 14 | -------------------------------------------------------------------------------- /src/com/baron/patterns/adapter/adaptee/Turkey.java: -------------------------------------------------------------------------------- 1 | package com.baron.patterns.adapter.adaptee; 2 | 3 | /** 4 | * 火鸡接口，被适配者 5 | * 6 | * @author Baron Zhang (baron[dot]zhanglei[at]gmail[dot]com) 7 | * @version 1.0 8 | * @since 1.0 9 | */ 10 | public interface Turkey { 11 | 12 | void gobble();//火鸡不会呱呱叫，只会咯咯(gobble)叫 13 | 14 | void fly();//火鸡也会飞，但是并飞不远 15 | } 16 | -------------------------------------------------------------------------------- /src/com/baron/patterns/adapter/adaptee/WildTurkey.java: -------------------------------------------------------------------------------- 1 | package com.baron.patterns.adapter.adaptee; 2 | 3 | /** 4 | * @author Baron Zhang (baron[dot]zhanglei[at]gmail[dot]com) 5 | * @version 1.0 6 | * @since 1.0 7 | */ 8 | public class WildTurkey implements Turkey { 9 | 10 | @Override 11 | public void gobble() { 12 | System.out.println("咯咯咯......"); 13 | } 14 | 15 | @Override 16 | public void fly() { 17 | System.out.println("我火鸡哥玩儿命的挥动翅膀，好不容易才飞了一小段距离"); 18 | } 19 | } 20 | -------------------------------------------------------------------------------- /src/com/baron/patterns/adapter/adapter/TurkeyAdapter.java: -------------------------------------------------------------------------------- 1 | package com.baron.patterns.adapter.adapter; 2 | 3 | import com.baron.patterns.adapter.adaptee.Turkey; 4 | import com.baron.patterns.adapter.target.Duck; 5 | 6 | /** 7 | * 适配器，将火鸡的接口转换成鸭子的接口 8 | * 9 | * @author Baron Zhang (baron[dot]zhanglei[at]gmail[dot]com) 10 | * @version 1.0 11 | * @since 1.0 12 | */ 13 | public class TurkeyAdapter implements Duck { 14 | 15 | private Turkey turkey; 16 | 17 | public TurkeyAdapter(Turkey turkey) { 18 | this.turkey = turkey; 19 | } 20 | 21 | @Override 22 | public void quack() { 23 | turkey.gobble(); 24 | } 25 | 26 | @Override 27 | public void fly() { 28 | //虽然火鸡也能飞，但是飞行距离太短，需要多次挥动它那萌萌哒的翅膀才能和火鸡飞的一样远 29 | for (int i = 0; i < 5; i++) { 30 | turkey.fly(); 31 | } 32 | } 33 | } 34 | -------------------------------------------------------------------------------- /src/com/baron/patterns/adapter/target/Duck.java: -------------------------------------------------------------------------------- 1 | package com.baron.patterns.adapter.target; 2 | 3 | /** 4 | * 鸭子，目标对象 5 | * 6 | * @author Baron Zhang (baron[dot]zhanglei[at]gmail[dot]com) 7 | * @version 1.0 8 | * @since 1.0 9 | */ 10 | public interface Duck { 11 | 12 | void quack(); 13 | 14 | void fly(); 15 | } 16 | -------------------------------------------------------------------------------- /src/com/baron/patterns/adapter/target/MallardDuck.java: -------------------------------------------------------------------------------- 1 | package com.baron.patterns.adapter.target; 2 | 3 | /** 4 | * 绿头鸭，目标对象 5 | * 6 | * @author Baron Zhang (baron[dot]zhanglei[at]gmail[dot]com) 7 | * @version 1.0 8 | * @since 1.0 9 | */ 10 | public class MallardDuck implements Duck { 11 | 12 | @Override 13 | public void quack() { 14 | System.out.println("呱呱呱......"); 15 | } 16 | 17 | @Override 18 | public void fly() { 19 | System.out.println("鸭哥我虽然带了绿帽子，但是依然可以只有飞翔！"); 20 | } 21 | } 22 | -------------------------------------------------------------------------------- /src/com/baron/patterns/command/CommandPatternTest.java: -------------------------------------------------------------------------------- 1 | package com.baron.patterns.command; 2 | 3 | import com.baron.patterns.command.command.LightOffCommand; 4 | import com.baron.patterns.command.command.LightOnCommand; 5 | import com.baron.patterns.command.command.StereoOffWithCDCommand; 6 | import com.baron.patterns.command.command.StereoOnWithCDCommand; 7 | import com.baron.patterns.command.executor.RemoteControl; 8 | import com.baron.patterns.command.requester.Light; 9 | import com.baron.patterns.command.requester.Stereo; 10 | 11 | /** 12 | * @author Baron Zhang (baron[dot]zhanglei[at]gmail[dot]com) 13 | * @version 1.0 14 | * @since 1.0 15 | */ 16 | public class CommandPatternTest { 17 | 18 | public static void main(String[] args) { 19 | 20 | RemoteControl remoteControl = new RemoteControl(); 21 | 22 | Light light = new Light(); 23 | Stereo stereo = new Stereo(); 24 | 25 | LightOnCommand lightOnCommand = new LightOnCommand(light); 26 | LightOffCommand lightOffCommand = new LightOffCommand(light); 27 | 28 | StereoOnWithCDCommand stereoOnWithCDCommand = new StereoOnWithCDCommand(stereo); 29 | StereoOffWithCDCommand stereoOffWithCDCommand = new StereoOffWithCDCommand(stereo); 30 | 31 | remoteControl.setCommand(lightOnCommand, lightOffCommand); 32 | remoteControl.onButtonPressed(); 33 | remoteControl.offButtonPressed(); 34 | 35 | System.out.println(); 36 | 37 | remoteControl.setCommand(stereoOnWithCDCommand,stereoOffWithCDCommand); 38 | remoteControl.onButtonPressed(); 39 | remoteControl.offButtonPressed(); 40 | } 41 | } 42 | -------------------------------------------------------------------------------- /src/com/baron/patterns/command/README.md: -------------------------------------------------------------------------------- 1 | #命令模式(CommandPattern) 2 | 3 | ####定义： 4 | > 将“请求”封装成对象，以便使用不同的请求、队列或者日志来参数化其他对象。命令模式也支持可撤销的操作。 5 | 6 | ###设计原则 7 | 1. 8 | 9 | ###类图 10 | 11 | -------------------------------------------------------------------------------- /src/com/baron/patterns/command/command/Command.java: -------------------------------------------------------------------------------- 1 | package com.baron.patterns.command.command; 2 | 3 | /** 4 | * 命令对象接口，通过具体的命令对象将请求者和执行者解耦 5 | * 6 | * @author Baron Zhang (baron[dot]zhanglei[at]gmail[dot]com) 7 | * @version 1.0 8 | * @since 1.0 9 | */ 10 | public interface Command { 11 | 12 | void execute(); 13 | 14 | void undo(); 15 | } 16 | -------------------------------------------------------------------------------- /src/com/baron/patterns/command/command/LightOffCommand.java: -------------------------------------------------------------------------------- 1 | package com.baron.patterns.command.command; 2 | 3 | import com.baron.patterns.command.requester.Light; 4 | 5 | /** 6 | * 开灯命令，将具体的请求命令封装成对象 7 | * 8 | * @author Baron Zhang (baron[dot]zhanglei[at]gmail[dot]com) 9 | * @version 1.0 10 | * @since 1.0 11 | */ 12 | public class LightOffCommand implements Command { 13 | 14 | Light light; 15 | 16 | public LightOffCommand(Light light) { 17 | this.light = light; 18 | } 19 | 20 | @Override 21 | public void execute() { 22 | this.light.off(); 23 | } 24 | 25 | @Override 26 | public void undo() { 27 | this.light.on(); 28 | } 29 | } 30 | -------------------------------------------------------------------------------- /src/com/baron/patterns/command/command/LightOnCommand.java: -------------------------------------------------------------------------------- 1 | package com.baron.patterns.command.command; 2 | 3 | import com.baron.patterns.command.requester.Light; 4 | 5 | /** 6 | * @author Baron Zhang (baron[dot]zhanglei[at]gmail[dot]com) 7 | * @version 1.0 8 | * @since 1.0 9 | */ 10 | public class LightOnCommand implements Command { 11 | 12 | Light light; 13 | 14 | public LightOnCommand(Light light) { 15 | this.light = light; 16 | } 17 | 18 | @Override 19 | public void execute() { 20 | this.light.on(); 21 | } 22 | 23 | @Override 24 | public void undo() { 25 | this.light.off(); 26 | } 27 | } 28 | -------------------------------------------------------------------------------- /src/com/baron/patterns/command/command/StereoOffWithCDCommand.java: -------------------------------------------------------------------------------- 1 | package com.baron.patterns.command.command; 2 | 3 | import com.baron.patterns.command.requester.Stereo; 4 | 5 | /** 6 | * @author Baron Zhang (baron[dot]zhanglei[at]gmail[dot]com) 7 | * @version 1.0 8 | * @since 1.0 9 | */ 10 | public class StereoOffWithCDCommand implements Command { 11 | 12 | private Stereo stereo; 13 | 14 | public StereoOffWithCDCommand(Stereo stereo) { 15 | this.stereo = stereo; 16 | } 17 | 18 | @Override 19 | public void execute() { 20 | stereo.setVolume(0); 21 | stereo.off(); 22 | } 23 | 24 | @Override 25 | public void undo() { 26 | stereo.on(); 27 | stereo.setCD(); 28 | stereo.setVolume(11); 29 | } 30 | } 31 | -------------------------------------------------------------------------------- /src/com/baron/patterns/command/command/StereoOnWithCDCommand.java: -------------------------------------------------------------------------------- 1 | package com.baron.patterns.command.command; 2 | 3 | import com.baron.patterns.command.requester.Stereo; 4 | 5 | /** 6 | * @author Baron Zhang (baron[dot]zhanglei[at]gmail[dot]com) 7 | * @version 1.0 8 | * @since 1.0 9 | */ 10 | public class StereoOnWithCDCommand implements Command { 11 | 12 | private Stereo stereo; 13 | 14 | public StereoOnWithCDCommand(Stereo stereo) { 15 | this.stereo = stereo; 16 | } 17 | 18 | @Override 19 | public void execute() { 20 | stereo.on(); 21 | stereo.setCD(); 22 | stereo.setVolume(11); 23 | } 24 | 25 | @Override 26 | public void undo() { 27 | stereo.off(); 28 | } 29 | } 30 | -------------------------------------------------------------------------------- /src/com/baron/patterns/command/executor/RemoteControl.java: -------------------------------------------------------------------------------- 1 | package com.baron.patterns.command.executor; 2 | 3 | import com.baron.patterns.command.command.Command; 4 | 5 | /** 6 | * 遥控器，执行请求的对象 7 | * 8 | * @author Baron Zhang (baron[dot]zhanglei[at]gmail[dot]com) 9 | * @version 1.0 10 | * @since 1.0 11 | */ 12 | public class RemoteControl { 13 | 14 | private Command onCommand; 15 | private Command offCommand; 16 | 17 | public RemoteControl() { 18 | } 19 | 20 | public void setCommand(Command onCommand, Command offCommand) { 21 | this.onCommand = onCommand; 22 | this.offCommand = offCommand; 23 | } 24 | 25 | public void onButtonPressed() { 26 | if (this.onCommand != null) { 27 | this.onCommand.execute(); 28 | } 29 | } 30 | 31 | public void offButtonPressed() { 32 | if (this.offCommand != null) { 33 | this.offCommand.execute(); 34 | } 35 | } 36 | } 37 | -------------------------------------------------------------------------------- /src/com/baron/patterns/command/requester/Light.java: -------------------------------------------------------------------------------- 1 | package com.baron.patterns.command.requester; 2 | 3 | /** 4 | * 点灯，发出请求的对象 5 | * 6 | * @author Baron Zhang (baron[dot]zhanglei[at]gmail[dot]com) 7 | * @version 1.0 8 | * @since 1.0 9 | */ 10 | public class Light { 11 | 12 | public void on() { 13 | System.out.println("等开了"); 14 | } 15 | 16 | public void off() { 17 | System.out.println("妈蛋啊，灯关了！！！"); 18 | } 19 | } 20 | -------------------------------------------------------------------------------- /src/com/baron/patterns/command/requester/Stereo.java: -------------------------------------------------------------------------------- 1 | package com.baron.patterns.command.requester; 2 | 3 | /** 4 | * 音响，发出请求的对象 5 | * 6 | * @author Baron Zhang (baron[dot]zhanglei[at]gmail[dot]com) 7 | * @version 1.0 8 | * @since 1.0 9 | */ 10 | public class Stereo { 11 | 12 | public void on() { 13 | System.out.println("打开音响"); 14 | } 15 | 16 | public void setCD() { 17 | System.out.println("放入CD"); 18 | } 19 | 20 | public void setVolume(int i) { 21 | System.out.println("设置播放音量为：" + i); 22 | } 23 | 24 | public void off(){ 25 | System.out.println("关闭音响"); 26 | } 27 | } 28 | -------------------------------------------------------------------------------- /src/com/baron/patterns/composite/README.md: -------------------------------------------------------------------------------- 1 | #组合模式(CompositePattern) 2 | 3 | ####定义： 4 | > 允许你将对象组合成树形结构来表现“整体/部分”层次结构。组合能让客户以一致的方式处理个别对象以及对象组合。 5 | 6 | ###设计原则 7 | 1. 8 | 9 | 10 | ###类图 11 | 12 | 13 | 14 | -------------------------------------------------------------------------------- /src/com/baron/patterns/compound/DuckSimulator.java: -------------------------------------------------------------------------------- 1 | package com.baron.patterns.compound; 2 | 3 | import com.baron.patterns.compound.adapter.GooseAdapter; 4 | import com.baron.patterns.compound.composite.Flock; 5 | import com.baron.patterns.compound.decorator.QuackCounter; 6 | import com.baron.patterns.compound.factory.AbstractDuckFactory; 7 | import com.baron.patterns.compound.factory.CountingDuckFactory; 8 | import com.baron.patterns.compound.model.*; 9 | 10 | /** 11 | * @author Baron Zhang (baron[dot]zhanglei[at]gmail[dot]com) 12 | * @version 1.0 13 | * @since 1.0 14 | */ 15 | public class DuckSimulator { 16 | 17 | public static void main(String[] args) { 18 | DuckSimulator simulator = new DuckSimulator(); 19 | AbstractDuckFactory duckFactory = new CountingDuckFactory(); 20 | simulator.simulate(duckFactory); 21 | } 22 | 23 | void simulate(AbstractDuckFactory duckFactory) { 24 | 25 | Quackable redheadDuck = duckFactory.createRedheadDuck(); 26 | Quackable duckCall = duckFactory.createDuckCall(); 27 | Quackable rubberDuck = duckFactory.createRubberDuck(); 28 | Quackable gooseDuck = new GooseAdapter(new Goose()); 29 | 30 | System.out.println("\nDuck Simulator：With Composite - Flocks"); 31 | 32 | Flock flockOfDucks = new Flock(); 33 | 34 | flockOfDucks.add(redheadDuck); 35 | flockOfDucks.add(duckCall); 36 | flockOfDucks.add(rubberDuck); 37 | flockOfDucks.add(gooseDuck); 38 | 39 | Flock flockOfMallards = new Flock(); 40 | 41 | Quackable mallardDuckOne = duckFactory.createMallardDuck(); 42 | Quackable mallardDuckTwo = duckFactory.createMallardDuck(); 43 | Quackable mallardDuckThree = duckFactory.createMallardDuck(); 44 | Quackable mallardDuckFour = duckFactory.createMallardDuck(); 45 | 46 | flockOfMallards.add(mallardDuckOne); 47 | flockOfMallards.add(mallardDuckTwo); 48 | flockOfMallards.add(mallardDuckThree); 49 | flockOfMallards.add(mallardDuckFour); 50 | 51 | flockOfDucks.add(flockOfMallards); 52 | 53 | System.out.println("\nDuck Simulator：Whole Flock Simulator"); 54 | simulate(flockOfDucks); 55 | 56 | System.out.println("\nDuck Simulator：Mallard Flock Simulator"); 57 | simulate(flockOfMallards); 58 | 59 | System.out.println("\nThe ducks quacked " + QuackCounter.getQuacks() + " times"); 60 | } 61 | 62 | void simulate(Quackable quackable) { 63 | quackable.quack(); 64 | } 65 | } 66 | -------------------------------------------------------------------------------- /src/com/baron/patterns/compound/README.md: -------------------------------------------------------------------------------- 1 | #复合模式(CompoundPattern) 2 | 3 | ####定义： 4 | > 多模式一起工作 5 | 6 | ###设计原则 7 | 1. 8 | 9 | 10 | ###类图 11 | 12 | 13 | 14 | -------------------------------------------------------------------------------- /src/com/baron/patterns/compound/adapter/GooseAdapter.java: -------------------------------------------------------------------------------- 1 | package com.baron.patterns.compound.adapter; 2 | 3 | import com.baron.patterns.compound.model.Goose; 4 | import com.baron.patterns.compound.model.Quackable; 5 | 6 | /** 7 | * @author Baron Zhang (baron[dot]zhanglei[at]gmail[dot]com) 8 | * @version 1.0 9 | * @since 1.0 10 | */ 11 | public class GooseAdapter implements Quackable { 12 | 13 | Goose goose; 14 | 15 | public GooseAdapter(Goose goose) { 16 | this.goose = goose; 17 | } 18 | 19 | @Override 20 | public void quack() { 21 | goose.honk(); 22 | } 23 | } 24 | -------------------------------------------------------------------------------- /src/com/baron/patterns/compound/composite/Flock.java: -------------------------------------------------------------------------------- 1 | package com.baron.patterns.compound.composite; 2 | 3 | import com.baron.patterns.compound.model.Quackable; 4 | 5 | import java.util.ArrayList; 6 | import java.util.Iterator; 7 | 8 | /** 9 | * @author Baron Zhang (baron[dot]zhanglei[at]gmail[dot]com) 10 | * @version 1.0 11 | * @since 1.0 12 | */ 13 | public class Flock implements Quackable { 14 | 15 | ArrayList quackers = new ArrayList(); 16 | 17 | public void add(Quackable quacker) { 18 | quackers.add(quacker); 19 | } 20 | 21 | @Override 22 | public void quack() { 23 | 24 | Iterator iterator = quackers.iterator(); 25 | while (iterator.hasNext()) { 26 | Quackable quacker = iterator.next(); 27 | quacker.quack(); 28 | } 29 | } 30 | } 31 | -------------------------------------------------------------------------------- /src/com/baron/patterns/compound/decorator/QuackCounter.java: -------------------------------------------------------------------------------- 1 | package com.baron.patterns.compound.decorator; 2 | 3 | import com.baron.patterns.compound.model.Quackable; 4 | 5 | /** 6 | * 装饰鸭子用于统计鸭子叫的次数 7 | * 8 | * @author Baron Zhang (baron[dot]zhanglei[at]gmail[dot]com) 9 | * @version 1.0 10 | * @since 1.0 11 | */ 12 | public class QuackCounter implements Quackable { 13 | 14 | Quackable duck; 15 | static int numberOfQuacks; 16 | 17 | public QuackCounter(Quackable duck) { 18 | this.duck = duck; 19 | } 20 | 21 | @Override 22 | public void quack() { 23 | duck.quack(); 24 | numberOfQuacks++; 25 | } 26 | 27 | public static int getQuacks() { 28 | return numberOfQuacks; 29 | } 30 | } 31 | -------------------------------------------------------------------------------- /src/com/baron/patterns/compound/factory/AbstractDuckFactory.java: -------------------------------------------------------------------------------- 1 | package com.baron.patterns.compound.factory; 2 | 3 | import com.baron.patterns.compound.model.Quackable; 4 | 5 | /** 6 | * @author Baron Zhang (baron[dot]zhanglei[at]gmail[dot]com) 7 | * @version 1.0 8 | * @since 1.0 9 | */ 10 | public abstract class AbstractDuckFactory { 11 | 12 | public abstract Quackable createMallardDuck(); 13 | public abstract Quackable createRedheadDuck(); 14 | public abstract Quackable createDuckCall(); 15 | public abstract Quackable createRubberDuck(); 16 | } 17 | -------------------------------------------------------------------------------- /src/com/baron/patterns/compound/factory/CountingDuckFactory.java: -------------------------------------------------------------------------------- 1 | package com.baron.patterns.compound.factory; 2 | 3 | import com.baron.patterns.compound.decorator.QuackCounter; 4 | import com.baron.patterns.compound.model.*; 5 | 6 | /** 7 | * @author Baron Zhang (baron[dot]zhanglei[at]gmail[dot]com) 8 | * @version 1.0 9 | * @since 1.0 10 | */ 11 | public class CountingDuckFactory extends AbstractDuckFactory { 12 | 13 | @Override 14 | public Quackable createMallardDuck() { 15 | return new QuackCounter(new MallardDuck()); 16 | } 17 | 18 | @Override 19 | public Quackable createRedheadDuck() { 20 | return new QuackCounter(new RedheadDuck()); 21 | } 22 | 23 | @Override 24 | public Quackable createDuckCall() { 25 | return new QuackCounter(new DuckCall()); 26 | } 27 | 28 | @Override 29 | public Quackable createRubberDuck() { 30 | return new QuackCounter(new RubberDuck()); 31 | } 32 | } 33 | -------------------------------------------------------------------------------- /src/com/baron/patterns/compound/factory/DuckFactory.java: -------------------------------------------------------------------------------- 1 | package com.baron.patterns.compound.factory; 2 | 3 | import com.baron.patterns.compound.model.*; 4 | 5 | /** 6 | * @author Baron Zhang (baron[dot]zhanglei[at]gmail[dot]com) 7 | * @version 1.0 8 | * @since 1.0 9 | */ 10 | public class DuckFactory extends AbstractDuckFactory { 11 | 12 | @Override 13 | public Quackable createMallardDuck() { 14 | return new MallardDuck(); 15 | } 16 | 17 | @Override 18 | public Quackable createRedheadDuck() { 19 | return new RedheadDuck(); 20 | } 21 | 22 | @Override 23 | public Quackable createDuckCall() { 24 | return new DuckCall(); 25 | } 26 | 27 | @Override 28 | public Quackable createRubberDuck() { 29 | return new RubberDuck(); 30 | } 31 | } 32 | -------------------------------------------------------------------------------- /src/com/baron/patterns/compound/model/DuckCall.java: -------------------------------------------------------------------------------- 1 | package com.baron.patterns.compound.model; 2 | 3 | /** 4 | * 鸭鸣器 5 | * 6 | * @author Baron Zhang (baron[dot]zhanglei[at]gmail[dot]com) 7 | * @version 1.0 8 | * @since 1.0 9 | */ 10 | public class DuckCall implements Quackable { 11 | 12 | @Override 13 | public void quack() { 14 | System.out.println("Kwak"); 15 | } 16 | } 17 | -------------------------------------------------------------------------------- /src/com/baron/patterns/compound/model/Goose.java: -------------------------------------------------------------------------------- 1 | package com.baron.patterns.compound.model; 2 | 3 | /** 4 | * 鹅 5 | * 6 | * @author Baron Zhang (baron[dot]zhanglei[at]gmail[dot]com) 7 | * @version 1.0 8 | * @since 1.0 9 | */ 10 | public class Goose { 11 | 12 | public void honk(){ 13 | System.out.println("Honk"); 14 | } 15 | } 16 | -------------------------------------------------------------------------------- /src/com/baron/patterns/compound/model/MallardDuck.java: -------------------------------------------------------------------------------- 1 | package com.baron.patterns.compound.model; 2 | 3 | /** 4 | * 绿头鸭 5 | * 6 | * @author Baron Zhang (baron[dot]zhanglei[at]gmail[dot]com) 7 | * @version 1.0 8 | * @since 1.0 9 | */ 10 | public class MallardDuck implements Quackable { 11 | 12 | @Override 13 | public void quack() { 14 | System.out.println("Quack"); 15 | } 16 | } 17 | -------------------------------------------------------------------------------- /src/com/baron/patterns/compound/model/Quackable.java: -------------------------------------------------------------------------------- 1 | package com.baron.patterns.compound.model; 2 | 3 | /** 4 | * @author Baron Zhang (baron[dot]zhanglei[at]gmail[dot]com) 5 | * @version 1.0 6 | * @since 1.0 7 | */ 8 | public interface Quackable { 9 | 10 | void quack(); 11 | } 12 | -------------------------------------------------------------------------------- /src/com/baron/patterns/compound/model/RedheadDuck.java: -------------------------------------------------------------------------------- 1 | package com.baron.patterns.compound.model; 2 | 3 | /** 4 | * 红头鸭 5 | * 6 | * @author Baron Zhang (baron[dot]zhanglei[at]gmail[dot]com) 7 | * @version 1.0 8 | * @since 1.0 9 | */ 10 | public class RedheadDuck implements Quackable { 11 | @Override 12 | public void quack() { 13 | System.out.println("Quack"); 14 | } 15 | } 16 | -------------------------------------------------------------------------------- /src/com/baron/patterns/compound/model/RubberDuck.java: -------------------------------------------------------------------------------- 1 | package com.baron.patterns.compound.model; 2 | 3 | /** 4 | * 橡皮鸭 5 | * 6 | * @author Baron Zhang (baron[dot]zhanglei[at]gmail[dot]com) 7 | * @version 1.0 8 | * @since 1.0 9 | */ 10 | public class RubberDuck implements Quackable { 11 | 12 | @Override 13 | public void quack() { 14 | System.out.println("Squeak"); 15 | } 16 | } 17 | -------------------------------------------------------------------------------- /src/com/baron/patterns/compound/observer/Observer.java: -------------------------------------------------------------------------------- 1 | package com.baron.patterns.compound.observer; 2 | 3 | /** 4 | * 5 | * @author Baron Zhang (baron[dot]zhanglei[at]gmail[dot]com) 6 | * @version 1.0 7 | * @since 1.0 8 | */ 9 | public interface Observer { 10 | 11 | void update(QuackObservable duck); 12 | } 13 | -------------------------------------------------------------------------------- /src/com/baron/patterns/compound/observer/QuackObservable.java: -------------------------------------------------------------------------------- 1 | package com.baron.patterns.compound.observer; 2 | 3 | import java.util.Observer; 4 | 5 | /** 6 | * @author Baron Zhang (baron[dot]zhanglei[at]gmail[dot]com) 7 | * @version 1.0 8 | * @since 1.0 9 | */ 10 | public interface QuackObservable { 11 | 12 | void registerObservable(Observer observer); 13 | 14 | void notifyObservers(); 15 | } 16 | -------------------------------------------------------------------------------- /src/com/baron/patterns/decorator/DecoratorPatternTest.java: -------------------------------------------------------------------------------- 1 | package com.baron.patterns.decorator; 2 | 3 | import com.baron.patterns.decorator.component.Beverage; 4 | import com.baron.patterns.decorator.component.DarkRoast; 5 | import com.baron.patterns.decorator.component.Decaf; 6 | import com.baron.patterns.decorator.decorator.Mocha; 7 | import com.baron.patterns.decorator.decorator.Whip; 8 | 9 | /** 10 | * @author Baron Zhang (baron[dot]zhanglei[at]gmail[dot]com) 11 | * @version 1.0 12 | * @since 1.0 13 | */ 14 | public class DecoratorPatternTest { 15 | 16 | public static void main(String[] args) { 17 | 18 | Beverage beverage = new Decaf();//这是顾客要的脱因咖啡 19 | beverage = new Mocha(beverage);//顾客想要摩卡，用摩卡装饰 20 | beverage = new Whip(beverage);//顾客想要奶泡，用奶泡装饰 21 | System.out.println(beverage.getDescription() + " 共花费$" + beverage.cost()); 22 | 23 | Beverage beverage2 = new DarkRoast();//这是顾客要的深培咖啡 24 | beverage2 = new Mocha(beverage2);//顾客想要摩卡，用摩卡装饰 25 | beverage2 = new Mocha(beverage2);//顾客想要摩卡，用摩卡装饰 26 | beverage2 = new Whip(beverage2);//顾客想要奶泡，用奶泡装饰 27 | System.out.println(beverage2.getDescription() + " 共花费$" + beverage2.cost()); 28 | } 29 | } 30 | -------------------------------------------------------------------------------- /src/com/baron/patterns/decorator/README.md: -------------------------------------------------------------------------------- 1 | #装饰者模式(DecoratorPattern) 2 | 3 | ####定义： 4 | > 动态的将责任附加到对象上。若要扩展功能，装饰者提供了比继承更有弹性的替代方案。 5 | 6 | ###设计原则 7 | 1. 类应该低扩展开放，对修改关闭。 8 | 9 | 10 | ###类图 11 | 12 | -------------------------------------------------------------------------------- /src/com/baron/patterns/decorator/component/Beverage.java: -------------------------------------------------------------------------------- 1 | package com.baron.patterns.decorator.component; 2 | 3 | /** 4 | * 饮料，被装饰者抽象基类 5 | * 6 | * @author Baron Zhang (baron[dot]zhanglei[at]gmail[dot]com) 7 | * @version 1.0 8 | * @since 1.0 9 | */ 10 | public abstract class Beverage { 11 | 12 | String description = "还不知道是什么饮料"; 13 | 14 | /** 15 | * @return 返回饮料详细描述 16 | */ 17 | public String getDescription() { 18 | return description; 19 | } 20 | 21 | /** 22 | * 计算价格 23 | * 24 | * @return double类型的价格 25 | */ 26 | public abstract double cost(); 27 | } 28 | -------------------------------------------------------------------------------- /src/com/baron/patterns/decorator/component/DarkRoast.java: -------------------------------------------------------------------------------- 1 | package com.baron.patterns.decorator.component; 2 | 3 | /** 4 | * 深培咖啡，被装饰者 5 | * 6 | * @author Baron Zhang (baron[dot]zhanglei[at]gmail[dot]com) 7 | * @version 1.0 8 | * @since 1.0 9 | */ 10 | public class DarkRoast extends Beverage { 11 | 12 | public DarkRoast() { 13 | description = "深培咖啡"; 14 | } 15 | 16 | @Override 17 | public double cost() { 18 | return 3.99; 19 | } 20 | } 21 | -------------------------------------------------------------------------------- /src/com/baron/patterns/decorator/component/Decaf.java: -------------------------------------------------------------------------------- 1 | package com.baron.patterns.decorator.component; 2 | 3 | /** 4 | * 脱因咖啡，被装饰者 5 | * 6 | * @author Baron Zhang (baron[dot]zhanglei[at]gmail[dot]com) 7 | * @version 1.0 8 | * @since 1.0 9 | */ 10 | public class Decaf extends Beverage { 11 | 12 | public Decaf(){ 13 | description = "脱因咖啡"; 14 | } 15 | 16 | @Override 17 | public double cost() { 18 | return 4.89; 19 | } 20 | } 21 | -------------------------------------------------------------------------------- /src/com/baron/patterns/decorator/decorator/CondimentDecorator.java: -------------------------------------------------------------------------------- 1 | package com.baron.patterns.decorator.decorator; 2 | 3 | import com.baron.patterns.decorator.component.Beverage; 4 | 5 | /** 6 | * @author Baron Zhang (baron[dot]zhanglei[at]gmail[dot]com) 7 | * @version 1.0 8 | * @since 1.0 9 | */ 10 | public abstract class CondimentDecorator extends Beverage { 11 | 12 | public abstract String getDescription(); 13 | } 14 | -------------------------------------------------------------------------------- /src/com/baron/patterns/decorator/decorator/Mocha.java: -------------------------------------------------------------------------------- 1 | package com.baron.patterns.decorator.decorator; 2 | 3 | import com.baron.patterns.decorator.component.Beverage; 4 | 5 | /** 6 | * 摩卡，装饰者 7 | * 8 | * @author Baron Zhang (baron[dot]zhanglei[at]gmail[dot]com) 9 | * @version 1.0 10 | * @since 1.0 11 | */ 12 | public class Mocha extends CondimentDecorator { 13 | 14 | private Beverage beverage; 15 | 16 | public Mocha(Beverage beverage) { 17 | this.beverage = beverage; 18 | } 19 | 20 | @Override 21 | public String getDescription() { 22 | return this.beverage.getDescription() + "，加摩卡"; 23 | } 24 | 25 | @Override 26 | public double cost() { 27 | return this.beverage.cost() + 1.99; 28 | } 29 | } 30 | -------------------------------------------------------------------------------- /src/com/baron/patterns/decorator/decorator/Whip.java: -------------------------------------------------------------------------------- 1 | package com.baron.patterns.decorator.decorator; 2 | 3 | import com.baron.patterns.decorator.component.Beverage; 4 | 5 | /** 6 | * 奶泡，装饰者 7 | * 8 | * @author Baron Zhang (baron[dot]zhanglei[at]gmail[dot]com) 9 | * @version 1.0 10 | * @since 1.0 11 | */ 12 | public class Whip extends CondimentDecorator { 13 | 14 | private Beverage beverage; 15 | 16 | public Whip(Beverage beverage) { 17 | this.beverage = beverage; 18 | } 19 | 20 | @Override 21 | public String getDescription() { 22 | return this.beverage.getDescription() + "，加奶泡"; 23 | } 24 | 25 | @Override 26 | public double cost() { 27 | return this.beverage.cost() + .88; 28 | } 29 | } 30 | -------------------------------------------------------------------------------- /src/com/baron/patterns/facade/FacadePatternTest.java: -------------------------------------------------------------------------------- 1 | package com.baron.patterns.facade; 2 | 3 | /** 4 | * @author Baron Zhang (baron[dot]zhanglei[at]gmail[dot]com) 5 | * @version 1.0 6 | * @since 1.0 7 | */ 8 | public class FacadePatternTest { 9 | } 10 | -------------------------------------------------------------------------------- /src/com/baron/patterns/facade/README.md: -------------------------------------------------------------------------------- 1 | #外观模式(FacadePattern) 2 | 3 | ####定义： 4 | > 提供了一个统一的接口，用来访问子系统中的一群接口。外观定义了一个高层接口，让子系统更容易使用。 5 | 6 | ###设计原则 7 | 1.最少知识原则：只和你的密友交谈 8 | 9 | 10 | ###类图 11 | 12 | 13 | 14 | -------------------------------------------------------------------------------- /src/com/baron/patterns/factory/FactoryPatternTest.java: -------------------------------------------------------------------------------- 1 | package com.baron.patterns.factory; 2 | 3 | import com.baron.patterns.factory.factory.ChicagoPizzaStore; 4 | import com.baron.patterns.factory.factory.NYPizzaStore; 5 | import com.baron.patterns.factory.product.Pizza; 6 | 7 | /** 8 | * @author Baron Zhang (baron[dot]zhanglei[at]gmail[dot]com) 9 | * @version 1.0 10 | * @since 1.0 11 | */ 12 | public class FactoryPatternTest { 13 | 14 | public static void main(String[] args) { 15 | NYPizzaStore nyPizzaStore = new NYPizzaStore(); 16 | Pizza pizza = nyPizzaStore.orderPizza("cheese"); 17 | System.out.println("二狗子定了一个" + pizza.getName() + "\n"); 18 | 19 | ChicagoPizzaStore chicagoPizzaStore = new ChicagoPizzaStore(); 20 | pizza = chicagoPizzaStore.orderPizza("clam"); 21 | System.out.println("隔壁老王定了一个" + pizza.getName() + "\n"); 22 | } 23 | } 24 | -------------------------------------------------------------------------------- /src/com/baron/patterns/factory/README.md: -------------------------------------------------------------------------------- 1 | #工厂模式(FactoryPattern) 2 | 3 | ####定义： 4 | > 定义了一个创建对象的接口，但由子类来决定要实例化的类是哪一个。工厂方法让类把实例化推迟到子类。 5 | 6 | ###设计原则 7 | 1. 8 | 9 | 10 | ###类图 11 | 12 | 13 | 14 | > 注：该Demo中还包含了模板方法模式 15 | 16 | -------------------------------------------------------------------------------- /src/com/baron/patterns/factory/factory/ChicagoPizzaStore.java: -------------------------------------------------------------------------------- 1 | package com.baron.patterns.factory.factory; 2 | 3 | import com.baron.patterns.factory.product.*; 4 | 5 | /** 6 | * @author Baron Zhang (baron[dot]zhanglei[at]gmail[dot]com) 7 | * @version 1.0 8 | * @since 1.0 9 | */ 10 | public class ChicagoPizzaStore extends PizzaStore { 11 | @Override 12 | Pizza createPizza(String type) { 13 | 14 | if ("cheese".equals(type)) { 15 | return new ChicagoStyleCheesePizza(); 16 | } else if ("clam".equals(type)) { 17 | return new ChicagoStyleClamPizza(); 18 | } 19 | return null; 20 | } 21 | } 22 | -------------------------------------------------------------------------------- /src/com/baron/patterns/factory/factory/NYPizzaStore.java: -------------------------------------------------------------------------------- 1 | package com.baron.patterns.factory.factory; 2 | 3 | import com.baron.patterns.factory.product.NYStyleCheesePizza; 4 | import com.baron.patterns.factory.product.NYStyleClamPizza; 5 | import com.baron.patterns.factory.product.Pizza; 6 | 7 | /** 8 | * @author Baron Zhang (baron[dot]zhanglei[at]gmail[dot]com) 9 | * @version 1.0 10 | * @since 1.0 11 | */ 12 | public class NYPizzaStore extends PizzaStore { 13 | 14 | @Override 15 | Pizza createPizza(String type) { 16 | 17 | if ("cheese".equals(type)) { 18 | return new NYStyleCheesePizza(); 19 | } else if ("clam".equals(type)) { 20 | return new NYStyleClamPizza(); 21 | } 22 | return null; 23 | } 24 | } 25 | 26 | -------------------------------------------------------------------------------- /src/com/baron/patterns/factory/factory/PizzaStore.java: -------------------------------------------------------------------------------- 1 | package com.baron.patterns.factory.factory; 2 | 3 | import com.baron.patterns.factory.product.Pizza; 4 | 5 | /** 6 | * @author Baron Zhang (baron[dot]zhanglei[at]gmail[dot]com) 7 | * @version 1.0 8 | * @since 1.0 9 | */ 10 | public abstract class PizzaStore { 11 | 12 | abstract Pizza createPizza(String type); 13 | 14 | public Pizza orderPizza(String type) { 15 | 16 | Pizza pizza = createPizza(type); 17 | 18 | pizza.prepare(); 19 | pizza.bake(); 20 | pizza.cut(); 21 | pizza.box(); 22 | 23 | return pizza; 24 | } 25 | } 26 | -------------------------------------------------------------------------------- /src/com/baron/patterns/factory/product/ChicagoStyleCheesePizza.java: -------------------------------------------------------------------------------- 1 | package com.baron.patterns.factory.product; 2 | 3 | /** 4 | * @author Baron Zhang (baron[dot]zhanglei[at]gmail[dot]com) 5 | * @version 1.0 6 | * @since 1.0 7 | */ 8 | public class ChicagoStyleCheesePizza extends Pizza { 9 | 10 | public ChicagoStyleCheesePizza() { 11 | name = "芝加哥田园风光芝士披萨"; 12 | dough = "朝鲜进贡的金三胖专用白面"; 13 | sauce = "菠萝、小番茄、胡萝卜"; 14 | } 15 | 16 | @Override 17 | public void cut() { 18 | System.out.println("这次咱切成五角形"); 19 | } 20 | } 21 | -------------------------------------------------------------------------------- /src/com/baron/patterns/factory/product/ChicagoStyleClamPizza.java: -------------------------------------------------------------------------------- 1 | package com.baron.patterns.factory.product; 2 | 3 | /** 4 | * @author Baron Zhang (baron[dot]zhanglei[at]gmail[dot]com) 5 | * @version 1.0 6 | * @since 1.0 7 | */ 8 | public class ChicagoStyleClamPizza extends Pizza { 9 | 10 | public ChicagoStyleClamPizza(){ 11 | name = "芝加哥番茄炒蛋披萨"; 12 | dough = "朝鲜进贡的金三胖专用白面"; 13 | sauce = "高大上的番茄炒蛋"; 14 | } 15 | } 16 | -------------------------------------------------------------------------------- /src/com/baron/patterns/factory/product/NYStyleCheesePizza.java: -------------------------------------------------------------------------------- 1 | package com.baron.patterns.factory.product; 2 | 3 | /** 4 | * @author Baron Zhang (baron[dot]zhanglei[at]gmail[dot]com) 5 | * @version 1.0 6 | * @since 1.0 7 | */ 8 | public class NYStyleCheesePizza extends Pizza { 9 | 10 | public NYStyleCheesePizza(){ 11 | name = "纽约风情烤肉披萨"; 12 | dough = "中国大东北进口的高级白面"; 13 | sauce = "纽约风味的风情烤肉"; 14 | } 15 | 16 | @Override 17 | public void box() { 18 | System.out.println("将披萨装进印有纽约店logo的包装盒里"); 19 | } 20 | } 21 | -------------------------------------------------------------------------------- /src/com/baron/patterns/factory/product/NYStyleClamPizza.java: -------------------------------------------------------------------------------- 1 | package com.baron.patterns.factory.product; 2 | 3 | /** 4 | * @author Baron Zhang (baron[dot]zhanglei[at]gmail[dot]com) 5 | * @version 1.0 6 | * @since 1.0 7 | */ 8 | public class NYStyleClamPizza extends Pizza { 9 | 10 | public NYStyleClamPizza() { 11 | name = "纽约韭菜炒蛋披萨"; 12 | dough = "中国大东北进口的高级白面"; 13 | sauce = "韭菜、鸡蛋"; 14 | } 15 | 16 | @Override 17 | public void box() { 18 | System.out.println("将披萨装进印有纽约店logo的包装盒里"); 19 | } 20 | } 21 | -------------------------------------------------------------------------------- /src/com/baron/patterns/factory/product/Pizza.java: -------------------------------------------------------------------------------- 1 | package com.baron.patterns.factory.product; 2 | 3 | import java.util.ArrayList; 4 | 5 | /** 6 | * 抽象披萨类 7 | * 8 | * @author Baron Zhang (baron[dot]zhanglei[at]gmail[dot]com) 9 | * @version 1.0 10 | * @since 1.0 11 | */ 12 | public abstract class Pizza { 13 | 14 | String name;//披萨名 15 | String dough;//面团 16 | String sauce;//调料 17 | 18 | public void prepare(){ 19 | System.out.println("我们准备制作"+name); 20 | System.out.println("开始和面....,采用的是"+dough); 21 | System.out.println("添加"+sauce); 22 | } 23 | 24 | /** 25 | * 烘培 26 | */ 27 | public void bake(){ 28 | System.out.println("烘培25分中"); 29 | } 30 | 31 | /** 32 | * 切块 33 | */ 34 | public void cut(){ 35 | System.out.println("把披萨切成斜片"); 36 | } 37 | 38 | /** 39 | * 包装 40 | */ 41 | public void box(){ 42 | System.out.println("将披萨装载连锁店的盒子里"); 43 | } 44 | 45 | public String getName() { 46 | return name; 47 | } 48 | } 49 | -------------------------------------------------------------------------------- /src/com/baron/patterns/iterator/README.md: -------------------------------------------------------------------------------- 1 | #迭代器模式(IteratorPattern) 2 | 3 | ####定义： 4 | > 提供一种方法顺序访问一个聚合对象中的各个元素，而不是暴露起内部的表示。 5 | 6 | ###设计原则 7 | 1.单一职责原则：一个类应该只有一个引起变化的原因。 8 | 9 | ###类图 10 | 11 | -------------------------------------------------------------------------------- /src/com/baron/patterns/observer/ObserverPatternTest.java: -------------------------------------------------------------------------------- 1 | package com.baron.patterns.observer; 2 | 3 | import com.baron.patterns.observer.observer.CurrentConditionsDisplay; 4 | import com.baron.patterns.observer.observer.ForecastDisplay; 5 | import com.baron.patterns.observer.subject.WeatherData; 6 | 7 | import java.util.ArrayList; 8 | import java.util.List; 9 | 10 | /** 11 | * 模拟一个气象站（测试类） 12 | * 13 | * @author Baron Zhang (baron[dot]zhanglei[at]gmail[dot]com) 14 | * @version 1.0 15 | * @see com.baron.patterns.observer.subject.WeatherData 16 | * @see com.baron.patterns.observer.observer.CurrentConditionsDisplay 17 | * @see com.baron.patterns.observer.observer.ForecastDisplay 18 | * @since 1.0 19 | */ 20 | public class ObserverPatternTest { 21 | 22 | public static void main(String[] args) { 23 | 24 | WeatherData weatherData = new WeatherData(); 25 | CurrentConditionsDisplay currentConditionsDisplay = new CurrentConditionsDisplay(weatherData); 26 | ForecastDisplay forecastDisplay = new ForecastDisplay(weatherData); 27 | 28 | List forecastTemperatures = new ArrayList(); 29 | forecastTemperatures.add(22f); 30 | forecastTemperatures.add(-1f); 31 | forecastTemperatures.add(9f); 32 | forecastTemperatures.add(23f); 33 | forecastTemperatures.add(27f); 34 | forecastTemperatures.add(30f); 35 | forecastTemperatures.add(10f); 36 | weatherData.setMeasurements(22f, 0.8f, 1.2f, forecastTemperatures); 37 | 38 | System.out.println("============================================"); 39 | 40 | List forecastTemperatures2 = new ArrayList(); 41 | forecastTemperatures2.add(2f); 42 | forecastTemperatures2.add(9f); 43 | forecastTemperatures2.add(9f); 44 | forecastTemperatures2.add(13f); 45 | forecastTemperatures2.add(17f); 46 | forecastTemperatures2.add(20f); 47 | forecastTemperatures2.add(20f); 48 | weatherData.setMeasurements(2f, 0.7f, 1.1f, forecastTemperatures2); 49 | 50 | System.out.println("============================================"); 51 | 52 | List forecastTemperatures3 = new ArrayList(); 53 | forecastTemperatures3.add(21f); 54 | forecastTemperatures3.add(11f); 55 | forecastTemperatures3.add(12f); 56 | forecastTemperatures3.add(33f); 57 | forecastTemperatures3.add(37f); 58 | forecastTemperatures3.add(30f); 59 | forecastTemperatures3.add(20f); 60 | weatherData.setMeasurements(21f, 0.6f, 0.9f, forecastTemperatures3); 61 | } 62 | } 63 | -------------------------------------------------------------------------------- /src/com/baron/patterns/observer/README.md: -------------------------------------------------------------------------------- 1 | #观察者模式(ObserverPattern) 2 | 3 | ####定义： 4 | > 定义了对象间一对多依赖，这样一来，当一个对象发生状态时，他的所有依赖者都会收到通知并自动更新。 5 | 6 | ####观察者模式介绍 7 | [http://www.jianshu.com/p/d55ee6e83d66](http://www.jianshu.com/p/d55ee6e83d66) 8 | 9 | -------------------------------------------------------------------------------- /src/com/baron/patterns/observer/observer/CurrentConditionsDisplay.java: -------------------------------------------------------------------------------- 1 | package com.baron.patterns.observer.observer; 2 | 3 | import com.baron.patterns.observer.subject.WeatherData; 4 | 5 | /** 6 | * @author Baron Zhang (baron[dot]zhanglei[at]gmail[dot]com) 7 | * @version 1.0 8 | * @since 1.0 9 | */ 10 | public class CurrentConditionsDisplay implements Observer, DisplayElement { 11 | 12 | private WeatherData weatherData; 13 | 14 | private float temperature;//温度 15 | private float humidity;//湿度 16 | private float pressure;//气压 17 | 18 | public CurrentConditionsDisplay(WeatherData weatherData) { 19 | this.weatherData = weatherData; 20 | this.weatherData.registerObserver(this); 21 | } 22 | 23 | @Override 24 | public void display() { 25 | System.out.println("当前温度为：" + this.temperature + "℃"); 26 | System.out.println("当前湿度为：" + this.humidity); 27 | System.out.println("当前气压为：" + this.pressure); 28 | } 29 | 30 | @Override 31 | public void update() { 32 | this.temperature = this.weatherData.getTemperature(); 33 | this.humidity = this.weatherData.getHumidity(); 34 | this.pressure = this.weatherData.getPressure(); 35 | display(); 36 | } 37 | } 38 | -------------------------------------------------------------------------------- /src/com/baron/patterns/observer/observer/DisplayElement.java: -------------------------------------------------------------------------------- 1 | package com.baron.patterns.observer.observer; 2 | 3 | /** 4 | * @author Baron Zhang (baron[dot]zhanglei[at]gmail[dot]com) 5 | * @version 1.0 6 | * @since 1.0 7 | */ 8 | public interface DisplayElement { 9 | 10 | void display(); 11 | } 12 | -------------------------------------------------------------------------------- /src/com/baron/patterns/observer/observer/ForecastDisplay.java: -------------------------------------------------------------------------------- 1 | package com.baron.patterns.observer.observer; 2 | 3 | import com.baron.patterns.observer.subject.WeatherData; 4 | 5 | import java.util.List; 6 | 7 | /** 8 | * @author Baron Zhang (baron[dot]zhanglei[at]gmail[dot]com) 9 | * @version 1.0 10 | * @since 1.0 11 | */ 12 | public class ForecastDisplay implements Observer, DisplayElement { 13 | 14 | private WeatherData weatherData; 15 | 16 | private List forecastTemperatures;//未来几天的温度 17 | 18 | public ForecastDisplay(WeatherData weatherData) { 19 | this.weatherData = weatherData; 20 | this.weatherData.registerObserver(this); 21 | } 22 | 23 | @Override 24 | public void display() { 25 | System.out.println("未来几天的气温"); 26 | int count = forecastTemperatures.size(); 27 | for (int i = 0; i < count; i++) { 28 | System.out.println("第" + i + "天:" + forecastTemperatures.get(i) + "℃"); 29 | } 30 | } 31 | 32 | @Override 33 | public void update() { 34 | this.forecastTemperatures = this.weatherData.getForecastTemperatures(); 35 | display(); 36 | } 37 | } 38 | -------------------------------------------------------------------------------- /src/com/baron/patterns/observer/observer/Observer.java: -------------------------------------------------------------------------------- 1 | package com.baron.patterns.observer.observer; 2 | 3 | /** 4 | * 观察者 5 | * 6 | * @author Baron Zhang (baron[dot]zhanglei[at]gmail[dot]com) 7 | * @version 1.0 8 | * @since 1.0 9 | */ 10 | public interface Observer { 11 | 12 | void update(); 13 | } 14 | -------------------------------------------------------------------------------- /src/com/baron/patterns/observer/subject/Subject.java: -------------------------------------------------------------------------------- 1 | package com.baron.patterns.observer.subject; 2 | 3 | import com.baron.patterns.observer.observer.Observer; 4 | 5 | /** 6 | * 主题（发布者、被观察者） 7 | * 8 | * @author Baron Zhang (baron[dot]zhanglei[at]gmail[dot]com) 9 | * @version 1.0 10 | * @since 1.0 11 | */ 12 | public interface Subject { 13 | 14 | /** 15 | * 注册观察者 16 | */ 17 | void registerObserver(Observer observer); 18 | 19 | /** 20 | * 移除观察者 21 | */ 22 | void removeObserver(Observer observer); 23 | 24 | /** 25 | * 通知观察者 26 | */ 27 | void notifyObservers(); 28 | } 29 | -------------------------------------------------------------------------------- /src/com/baron/patterns/observer/subject/WeatherData.java: -------------------------------------------------------------------------------- 1 | package com.baron.patterns.observer.subject; 2 | 3 | import com.baron.patterns.observer.observer.Observer; 4 | 5 | import java.util.ArrayList; 6 | import java.util.List; 7 | 8 | /** 9 | * @author Baron Zhang (baron[dot]zhanglei[at]gmail[dot]com) 10 | * @version 1.0 11 | * @since 1.0 12 | */ 13 | public class WeatherData implements Subject { 14 | 15 | private List observers; 16 | 17 | private float temperature;//温度 18 | private float humidity;//湿度 19 | private float pressure;//气压 20 | private List forecastTemperatures;//未来几天的温度 21 | 22 | public WeatherData() { 23 | this.observers = new ArrayList(); 24 | } 25 | 26 | @Override 27 | public void registerObserver(Observer observer) { 28 | this.observers.add(observer); 29 | } 30 | 31 | @Override 32 | public void removeObserver(Observer observer) { 33 | this.observers.remove(observer); 34 | } 35 | 36 | @Override 37 | public void notifyObservers() { 38 | for (Observer observer : observers) { 39 | observer.update(); 40 | } 41 | } 42 | 43 | public void measurementsChanged() { 44 | notifyObservers(); 45 | } 46 | 47 | public void setMeasurements(float temperature, float humidity, float pressure, List forecastTemperatures) { 48 | this.temperature = temperature; 49 | this.humidity = humidity; 50 | this.pressure = pressure; 51 | this.forecastTemperatures = forecastTemperatures; 52 | measurementsChanged(); 53 | } 54 | 55 | public float getTemperature() { 56 | return temperature; 57 | } 58 | 59 | public float getHumidity() { 60 | return humidity; 61 | } 62 | 63 | public float getPressure() { 64 | return pressure; 65 | } 66 | 67 | public List getForecastTemperatures() { 68 | return forecastTemperatures; 69 | } 70 | } 71 | -------------------------------------------------------------------------------- /src/com/baron/patterns/package-info.java: -------------------------------------------------------------------------------- 1 | /** 2 | * 3 | * 4 | * @author Baron Zhang (baron[dot]zhanglei[at]gmail[dot]com) 5 | * @since 1.0 6 | * @version 1.0 7 | */ 8 | package com.baron.patterns; -------------------------------------------------------------------------------- /src/com/baron/patterns/proxy/MyRemote.java: -------------------------------------------------------------------------------- 1 | package com.baron.patterns.proxy; 2 | 3 | import java.rmi.Remote; 4 | import java.rmi.RemoteException; 5 | 6 | /** 7 | * @author Baron Zhang (baron[dot]zhanglei[at]gmail[dot]com) 8 | * @version 1.0 9 | * @since 1.0 10 | */ 11 | public interface MyRemote extends Remote { 12 | 13 | public String sayHello() throws RemoteException; 14 | } 15 | -------------------------------------------------------------------------------- /src/com/baron/patterns/proxy/MyRemoteImpl.java: -------------------------------------------------------------------------------- 1 | package com.baron.patterns.proxy; 2 | 3 | import java.rmi.RemoteException; 4 | import java.rmi.server.UnicastRemoteObject; 5 | 6 | /** 7 | * @author Baron Zhang (baron[dot]zhanglei[at]gmail[dot]com) 8 | * @version 1.0 9 | * @since 1.0 10 | */ 11 | public class MyRemoteImpl extends UnicastRemoteObject implements MyRemote { 12 | 13 | protected MyRemoteImpl() throws RemoteException { 14 | 15 | } 16 | 17 | @Override 18 | public String sayHello() throws RemoteException { 19 | return "Server says, 'Hey'"; 20 | } 21 | } 22 | -------------------------------------------------------------------------------- /src/com/baron/patterns/proxy/README.md: -------------------------------------------------------------------------------- 1 | #代理模式(ProxyPattern) 2 | 3 | ####定义： 4 | > 5 | 6 | ###设计原则 7 | 1. 8 | 9 | 10 | ###类图 11 | 12 | 13 | 14 | -------------------------------------------------------------------------------- /src/com/baron/patterns/singleton/README.md: -------------------------------------------------------------------------------- 1 | #单例模式(SingletonPattern) 2 | 3 | ####定义： 4 | > 确保一个类只有一个实例，并提供一个全局的访问点。 5 | 6 | ###设计原则 7 | 1. 8 | 9 | ###类图 10 | 11 | -------------------------------------------------------------------------------- /src/com/baron/patterns/singleton/Singleton.java: -------------------------------------------------------------------------------- 1 | package com.baron.patterns.singleton; 2 | 3 | /** 4 | * 单例类，双重检查加锁 5 | * 6 | * @author Baron Zhang (baron[dot]zhanglei[at]gmail[dot]com) 7 | * @version 1.0 8 | * @since 1.0 9 | */ 10 | public class Singleton { 11 | 12 | private volatile static Singleton uniqueInstance; 13 | 14 | private Singleton() {} 15 | 16 | public static Singleton getInstance() { 17 | if (uniqueInstance == null) { 18 | synchronized (Singleton.class) { 19 | if (uniqueInstance == null) { 20 | uniqueInstance = new Singleton(); 21 | } 22 | } 23 | } 24 | return uniqueInstance; 25 | } 26 | } 27 | -------------------------------------------------------------------------------- /src/com/baron/patterns/state/README.md: -------------------------------------------------------------------------------- 1 | #状态模式(StatePattern) 2 | 3 | ####定义： 4 | > 允许对象在内部状态改变时改变它的行为，对象看起来好像修改了它的类。 5 | 6 | ###设计原则 7 | 1. 8 | 9 | 10 | ###类图 11 | 12 | -------------------------------------------------------------------------------- /src/com/baron/patterns/state/StatePatternTest.java: -------------------------------------------------------------------------------- 1 | package com.baron.patterns.state; 2 | 3 | import com.baron.patterns.state.state.GumballMachine; 4 | 5 | /** 6 | * @author Baron Zhang (baron[dot]zhanglei[at]gmail[dot]com) 7 | * @version 1.0 8 | * @since 1.0 9 | */ 10 | public class StatePatternTest { 11 | 12 | public static void main(String[] args) { 13 | 14 | GumballMachine machine = new GumballMachine(10); 15 | machine.insertQuarter(); 16 | machine.turnCrank(); 17 | System.out.println("剩余糖果："+machine.getCount()+"\n"); 18 | 19 | machine.ejectQuarter(); 20 | machine.turnCrank(); 21 | System.out.println("剩余糖果：" + machine.getCount() + "\n"); 22 | 23 | machine.insertQuarter(); 24 | machine.ejectQuarter(); 25 | System.out.println("剩余糖果：" + machine.getCount() + "\n"); 26 | 27 | machine.insertQuarter(); 28 | machine.turnCrank(); 29 | System.out.println("剩余糖果："+machine.getCount()+"\n"); 30 | } 31 | } 32 | -------------------------------------------------------------------------------- /src/com/baron/patterns/state/state/GumballMachine.java: -------------------------------------------------------------------------------- 1 | package com.baron.patterns.state.state; 2 | 3 | import com.baron.patterns.state.state.*; 4 | 5 | /** 6 | * 糖果售卖机 7 | * 8 | * @author Baron Zhang (baron[dot]zhanglei[at]gmail[dot]com) 9 | * @version 1.0 10 | * @since 1.0 11 | */ 12 | public class GumballMachine { 13 | 14 | private HasQuarterState hasQuarterState; 15 | private NoQuarterState noQuarterState; 16 | private SoldOutState soldOutState; 17 | private SoldState soldState; 18 | 19 | private State state = soldOutState; 20 | private int count = 0;//售卖机剩余糖果数量 21 | 22 | public GumballMachine(int numberGumballs) { 23 | this.hasQuarterState = new HasQuarterState(this); 24 | this.noQuarterState = new NoQuarterState(this); 25 | this.soldOutState = new SoldOutState(this); 26 | this.soldState = new SoldState(this); 27 | this.count = numberGumballs; 28 | if (numberGumballs > 0) { 29 | this.state = noQuarterState; 30 | } 31 | } 32 | 33 | public void insertQuarter() { 34 | state.insertQuarter(); 35 | } 36 | 37 | public void ejectQuarter() { 38 | state.ejectQuarter(); 39 | } 40 | 41 | public void turnCrank() { 42 | state.turnCrank(); 43 | state.dispense(); 44 | } 45 | 46 | 47 | void releaseBall() { 48 | System.out.println("售出糖果"); 49 | if (count > 0) { 50 | count--; 51 | } 52 | } 53 | 54 | public void setState(State state) { 55 | this.state = state; 56 | } 57 | 58 | public State getState() { 59 | return state; 60 | } 61 | 62 | public int getCount() { 63 | return count; 64 | } 65 | 66 | public HasQuarterState getHasQuarterState() { 67 | return hasQuarterState; 68 | } 69 | 70 | public NoQuarterState getNoQuarterState() { 71 | return noQuarterState; 72 | } 73 | 74 | public SoldOutState getSoldOutState() { 75 | return soldOutState; 76 | } 77 | 78 | public SoldState getSoldState() { 79 | return soldState; 80 | } 81 | } 82 | -------------------------------------------------------------------------------- /src/com/baron/patterns/state/state/HasQuarterState.java: -------------------------------------------------------------------------------- 1 | package com.baron.patterns.state.state; 2 | 3 | /** 4 | * 状态之有25美分了 5 | * 6 | * @author Baron Zhang (baron[dot]zhanglei[at]gmail[dot]com) 7 | * @version 1.0 8 | * @since 1.0 9 | */ 10 | public class HasQuarterState implements State { 11 | 12 | private GumballMachine gumballMachine; 13 | 14 | public HasQuarterState(GumballMachine gumballMachine) { 15 | this.gumballMachine = gumballMachine; 16 | } 17 | 18 | @Override 19 | public void insertQuarter() { 20 | System.out.println("钱多烧得晃是不？你特么不给给钱了吗？！！"); 21 | } 22 | 23 | @Override 24 | public void ejectQuarter() { 25 | System.out.println("好吧，钱退给你"); 26 | //退币后修改为无币状态 27 | this.gumballMachine.setState(this.gumballMachine.getNoQuarterState()); 28 | } 29 | 30 | @Override 31 | public void turnCrank() { 32 | System.out.println("波动了开关"); 33 | } 34 | 35 | @Override 36 | public void dispense() { 37 | gumballMachine.releaseBall(); 38 | if(gumballMachine.getCount()>0){ 39 | this.gumballMachine.setState(this.gumballMachine.getNoQuarterState()); 40 | }else{ 41 | System.out.println("妈蛋，糖果卖完了！！！"); 42 | this.gumballMachine.setState(this.gumballMachine.getSoldOutState()); 43 | } 44 | } 45 | } 46 | -------------------------------------------------------------------------------- /src/com/baron/patterns/state/state/NoQuarterState.java: -------------------------------------------------------------------------------- 1 | package com.baron.patterns.state.state; 2 | 3 | /** 4 | * 状态之木有钱 5 | * 6 | * @author Baron Zhang (baron[dot]zhanglei[at]gmail[dot]com) 7 | * @version 1.0 8 | * @since 1.0 9 | */ 10 | public class NoQuarterState implements State { 11 | 12 | GumballMachine gumballMachine; 13 | 14 | public NoQuarterState(GumballMachine gumballMachine) { 15 | this.gumballMachine = gumballMachine; 16 | } 17 | 18 | @Override 19 | public void insertQuarter() { 20 | //这里加入投币代码 21 | System.out.println("客官您投入了25分硬币"); 22 | gumballMachine.setState(gumballMachine.getHasQuarterState()); 23 | } 24 | 25 | @Override 26 | public void ejectQuarter() { 27 | //这里加入退币代码 28 | System.out.println("小子！你特么都没投钱，还要求退币？！！！"); 29 | } 30 | 31 | @Override 32 | public void turnCrank() { 33 | //这里加入转动曲柄代码 34 | System.out.println("没给钱拨你妹的曲柄开关啊"); 35 | } 36 | 37 | @Override 38 | public void dispense() { 39 | //这里加入发糖果代码 40 | System.out.println("哥哥，咱先给钱好不好"); 41 | } 42 | } 43 | -------------------------------------------------------------------------------- /src/com/baron/patterns/state/state/SoldOutState.java: -------------------------------------------------------------------------------- 1 | package com.baron.patterns.state.state; 2 | 3 | /** 4 | * 状态之售罄 5 | * 6 | * @author Baron Zhang (baron[dot]zhanglei[at]gmail[dot]com) 7 | * @version 1.0 8 | * @since 1.0 9 | */ 10 | public class SoldOutState implements State { 11 | 12 | private GumballMachine gumballMachine; 13 | 14 | public SoldOutState(GumballMachine gumballMachine) { 15 | this.gumballMachine = gumballMachine; 16 | } 17 | 18 | @Override 19 | public void insertQuarter() { 20 | System.out.println("不能投币，糖果卖完了！"); 21 | } 22 | 23 | @Override 24 | public void ejectQuarter() { 25 | System.out.println("无法退币，你没投币！"); 26 | } 27 | 28 | @Override 29 | public void turnCrank() { 30 | System.out.println("没糖果了，拨你妹的曲柄啊！！！"); 31 | } 32 | 33 | @Override 34 | public void dispense() { 35 | System.out.println("没有可以售出的糖果"); 36 | } 37 | } 38 | -------------------------------------------------------------------------------- /src/com/baron/patterns/state/state/SoldState.java: -------------------------------------------------------------------------------- 1 | package com.baron.patterns.state.state; 2 | 3 | /** 4 | * 状态之售出糖果 5 | * 6 | * @author Baron Zhang (baron[dot]zhanglei[at]gmail[dot]com) 7 | * @version 1.0 8 | * @since 1.0 9 | */ 10 | public class SoldState implements State { 11 | 12 | GumballMachine gumballMachine; 13 | 14 | public SoldState(GumballMachine gumballMachine) { 15 | this.gumballMachine = gumballMachine; 16 | } 17 | 18 | @Override 19 | public void insertQuarter() { 20 | System.out.println("等等骚年，我们已经给你一个糖果了"); 21 | } 22 | 23 | @Override 24 | public void ejectQuarter() { 25 | System.out.println("抱歉，你已经拨动曲柄，现在无法退币了"); 26 | } 27 | 28 | @Override 29 | public void turnCrank() { 30 | System.out.println("好的，我们将会给你颗糖果"); 31 | } 32 | 33 | @Override 34 | public void dispense() { 35 | gumballMachine.releaseBall(); 36 | if (gumballMachine.getCount() > 0) { 37 | System.out.println("发糖果啦"); 38 | gumballMachine.setState(gumballMachine.getNoQuarterState()); 39 | } else { 40 | System.out.println("妈蛋，糖果卖完了！！！"); 41 | gumballMachine.setState(gumballMachine.getSoldOutState()); 42 | } 43 | } 44 | } 45 | -------------------------------------------------------------------------------- /src/com/baron/patterns/state/state/State.java: -------------------------------------------------------------------------------- 1 | package com.baron.patterns.state.state; 2 | 3 | /** 4 | * 状态接口，所有糖果机的状态都必须实现这一接口。接口的方法直接隐射到糖果机上可能发生的动作. 5 | *

6 | * 准确的说接口中的方法是糖果机在该状态下的操作 7 | * 8 | * @author Baron Zhang (baron[dot]zhanglei[at]gmail[dot]com) 9 | * @version 1.0 10 | * @since 1.0 11 | */ 12 | public interface State { 13 | 14 | /** 15 | * 投入25分硬币 16 | */ 17 | void insertQuarter(); 18 | 19 | /** 20 | * 吐出25分硬币 21 | */ 22 | void ejectQuarter(); 23 | 24 | /** 25 | * 转动曲柄 26 | */ 27 | void turnCrank(); 28 | 29 | /** 30 | * 发放糖果 31 | */ 32 | void dispense(); 33 | } 34 | -------------------------------------------------------------------------------- /src/com/baron/patterns/strategy/Duck.java: -------------------------------------------------------------------------------- 1 | package com.baron.patterns.strategy; 2 | 3 | import com.baron.patterns.strategy.behavior.FlyBehavior; 4 | import com.baron.patterns.strategy.behavior.QuackBehavior; 5 | 6 | /** 7 | * 鸭子抽象类（基类） 8 | * 9 | * @author Baron Zhang (baron[dot]zhanglei[at]gmail[dot]com) 10 | * @version 1.0 11 | * @since 1.0 12 | */ 13 | public abstract class Duck { 14 | 15 | 16 | protected FlyBehavior flyBehavior; 17 | protected QuackBehavior quackBehavior; 18 | 19 | /** 20 | * 鸭子的外观 21 | */ 22 | public abstract void display(); 23 | 24 | /** 25 | * 游泳 26 | */ 27 | public void swim() { 28 | System.out.println("我游啊游啊游......"); 29 | } 30 | 31 | /** 32 | * 飞行 33 | */ 34 | public void performFly() { 35 | //将飞行这件小事委托给行为类 36 | if (flyBehavior != null) 37 | flyBehavior.fly(); 38 | } 39 | 40 | /** 41 | * 叫 42 | */ 43 | public void performQuack() { 44 | //将浪叫这件小事委托给行为类 45 | if (quackBehavior != null) 46 | quackBehavior.quack(); 47 | } 48 | 49 | /** 50 | * 设置鸭子的飞行行为 51 | * 52 | * @param flyBehavior 飞 53 | */ 54 | public void setFlyBehavior(FlyBehavior flyBehavior) { 55 | this.flyBehavior = flyBehavior; 56 | } 57 | 58 | /** 59 | * 设置鸭子叫的行为 60 | * 61 | * @param quackBehavior 叫 62 | */ 63 | public void setQuackBehavior(QuackBehavior quackBehavior) { 64 | this.quackBehavior = quackBehavior; 65 | } 66 | 67 | 68 | } 69 | -------------------------------------------------------------------------------- /src/com/baron/patterns/strategy/MallardDuck.java: -------------------------------------------------------------------------------- 1 | package com.baron.patterns.strategy; 2 | 3 | import com.baron.patterns.strategy.behavior.impl.FlyNoWay; 4 | import com.baron.patterns.strategy.behavior.impl.Quack; 5 | 6 | /** 7 | * Duck的子类，野鸭 8 | * 9 | * @author Baron Zhang (baron[dot]zhanglei[at]gmail[dot]com) 10 | * @version 1.0 11 | * @since 1.0 12 | */ 13 | public class MallardDuck extends Duck { 14 | 15 | public MallardDuck() { 16 | flyBehavior = new FlyNoWay(); 17 | quackBehavior = new Quack(); 18 | } 19 | 20 | @Override 21 | public void display() { 22 | System.out.println("我可是一只货真价实的野鸭子！"); 23 | } 24 | } 25 | -------------------------------------------------------------------------------- /src/com/baron/patterns/strategy/README.md: -------------------------------------------------------------------------------- 1 | #策略模式(StrategyPattern) 2 | 3 | ####定义： 4 | > 定义了算法族，分别封装起来，让他们之间可以互相替换，此模式让算法的变化独立于使用算法的客户。 5 | 6 | ###设计原则 7 | 1. 找出应用中可能需要变化之处，把它们独立出来，不要和那些不需要变化的代码混在一起。 8 | 2. 针对接口变成，而不是针对实现编程。 9 | > *“针对接口编程”的真正意思是针对超类型编程*。 10 | 3. 多用组合，少用集成。 11 | 12 | ###类图 13 | 14 | -------------------------------------------------------------------------------- /src/com/baron/patterns/strategy/StrategyPatternTest.java: -------------------------------------------------------------------------------- 1 | package com.baron.patterns.strategy; 2 | 3 | import com.baron.patterns.strategy.behavior.impl.FlyWithWings; 4 | import com.baron.patterns.strategy.behavior.impl.MuteQuack; 5 | 6 | /** 7 | * 鸭子模拟器，测试类 8 | * 9 | * @author Baron Zhang (baron[dot]zhanglei[at]gmail[dot]com) 10 | * @version 1.0 11 | * @since 1.0 12 | */ 13 | public class StrategyPatternTest { 14 | 15 | public static void main(String[] args) { 16 | 17 | Duck duck = new MallardDuck(); 18 | duck.swim(); 19 | duck.display(); 20 | duck.performFly(); 21 | duck.performQuack(); 22 | 23 | //现在会飞了 24 | duck.setFlyBehavior(new FlyWithWings()); 25 | duck.performFly(); 26 | //可是不会叫了 27 | duck.setQuackBehavior(new MuteQuack()); 28 | duck.performQuack(); 29 | } 30 | 31 | } 32 | -------------------------------------------------------------------------------- /src/com/baron/patterns/strategy/behavior/FlyBehavior.java: -------------------------------------------------------------------------------- 1 | package com.baron.patterns.strategy.behavior; 2 | 3 | /** 4 | * 鸭子飞行的行为 5 | * 6 | * @author Baron Zhang (baron[dot]zhanglei[at]gmail[dot]com) 7 | * @version 1.0 8 | * @since 1.0 9 | */ 10 | public interface FlyBehavior { 11 | 12 | /** 13 | * 飞行 14 | */ 15 | void fly(); 16 | } 17 | -------------------------------------------------------------------------------- /src/com/baron/patterns/strategy/behavior/QuackBehavior.java: -------------------------------------------------------------------------------- 1 | package com.baron.patterns.strategy.behavior; 2 | 3 | /** 4 | * Created by baron on 15/12/14. 5 | * 6 | * 鸭子叫的行为 7 | */ 8 | public interface QuackBehavior { 9 | 10 | /** 11 | * 叫 12 | */ 13 | void quack(); 14 | } 15 | -------------------------------------------------------------------------------- /src/com/baron/patterns/strategy/behavior/impl/FlyNoWay.java: -------------------------------------------------------------------------------- 1 | package com.baron.patterns.strategy.behavior.impl; 2 | 3 | import com.baron.patterns.strategy.behavior.FlyBehavior; 4 | 5 | /** 6 | * 飞行行为的实现类（飞不了） 7 | * 8 | * @author Baron Zhang (baron[dot]zhanglei[at]gmail[dot]com) 9 | * @version 1.0 10 | * @since 1.0 11 | */ 12 | public class FlyNoWay implements FlyBehavior { 13 | 14 | @Override 15 | public void fly() { 16 | //什么都不做 17 | System.out.println("我不能飞 :("); 18 | } 19 | } 20 | -------------------------------------------------------------------------------- /src/com/baron/patterns/strategy/behavior/impl/FlyWithWings.java: -------------------------------------------------------------------------------- 1 | package com.baron.patterns.strategy.behavior.impl; 2 | 3 | import com.baron.patterns.strategy.behavior.FlyBehavior; 4 | 5 | 6 | /** 7 | * 飞行行为的实现类，执行具体的飞行行为 8 | * 9 | * @author Baron Zhang (baron[dot]zhanglei[at]gmail[dot]com) 10 | * @version 1.0 11 | * @since 1.0 12 | */ 13 | public class FlyWithWings implements FlyBehavior { 14 | @Override 15 | public void fly() { 16 | //挥动翅膀飞行 17 | System.out.println("我飞起来了!!!"); 18 | } 19 | } 20 | -------------------------------------------------------------------------------- /src/com/baron/patterns/strategy/behavior/impl/MuteQuack.java: -------------------------------------------------------------------------------- 1 | package com.baron.patterns.strategy.behavior.impl; 2 | 3 | import com.baron.patterns.strategy.behavior.QuackBehavior; 4 | 5 | 6 | /** 7 | * @author Baron Zhang (baron[dot]zhanglei[at]gmail[dot]com) 8 | * @version 1.0 9 | * @since 1.0 10 | */ 11 | public class MuteQuack implements QuackBehavior { 12 | @Override 13 | public void quack() { 14 | //什么都不做，不会叫 15 | System.out.print("整个世界都清净了.... ps：我不会叫 :("); 16 | } 17 | } 18 | -------------------------------------------------------------------------------- /src/com/baron/patterns/strategy/behavior/impl/Quack.java: -------------------------------------------------------------------------------- 1 | package com.baron.patterns.strategy.behavior.impl; 2 | 3 | import com.baron.patterns.strategy.behavior.QuackBehavior; 4 | 5 | 6 | /** 7 | * @author Baron Zhang (baron[dot]zhanglei[at]gmail[dot]com) 8 | * @version 1.0 9 | * @since 1.0 10 | */ 11 | public class Quack implements QuackBehavior { 12 | @Override 13 | public void quack() { 14 | //实现鸭子嘎嘎叫 15 | System.out.println("嘎嘎嘎嘎嘎嘎嘎......"); 16 | } 17 | } 18 | -------------------------------------------------------------------------------- /src/com/baron/patterns/strategy/behavior/impl/Squeak.java: -------------------------------------------------------------------------------- 1 | package com.baron.patterns.strategy.behavior.impl; 2 | 3 | import com.baron.patterns.strategy.behavior.QuackBehavior; 4 | 5 | 6 | /** 7 | * @author Baron Zhang (baron[dot]zhanglei[at]gmail[dot]com) 8 | * @version 1.0 9 | * @since 1.0 10 | */ 11 | public class Squeak implements QuackBehavior { 12 | @Override 13 | public void quack() { 14 | //实现鸭子吱吱叫 15 | System.out.println("吱吱吱吱吱吱吱......"); 16 | } 17 | } 18 | -------------------------------------------------------------------------------- /src/com/baron/patterns/template/README.md: -------------------------------------------------------------------------------- 1 | #模板模式(TemplatePattern) 2 | 3 | ####定义： 4 | > 5 | 6 | ###设计原则 7 | 1. 8 | 9 | ###类图 10 | 11 | --------------------------------------------------------------------------------