decorator

mingjunli · mingjunli · commit c4373f7071bf · 2016-11-23T16:08:50.000+08:00
diff --git a/src/com/anly/designpattern/decorator/Coke.java b/src/com/anly/designpattern/decorator/Coke.java
@@ -0,0 +1,11 @@
+package com.anly.designpattern.decorator;
+
+/**
+ * Created by mingjun on 2016/11/22.
+ */
+public class Coke implements Drink {
+    @Override
+    public String make() {
+        return "这是一杯可乐";
+    }
+}
diff --git a/src/com/anly/designpattern/decorator/Drink.java b/src/com/anly/designpattern/decorator/Drink.java
@@ -0,0 +1,9 @@
+package com.anly.designpattern.decorator;
+
+/**
+ * Created by mingjun on 2016/11/22.
+ */
+public interface Drink {
+
+    String make();
+}
diff --git a/src/com/anly/designpattern/decorator/Honey.java b/src/com/anly/designpattern/decorator/Honey.java
@@ -0,0 +1,16 @@
+package com.anly.designpattern.decorator;
+
+/**
+ * Created by mingjun on 2016/11/22.
+ */
+public class Honey extends Stuff {
+
+    public Honey(Drink originalDrink) {
+        super(originalDrink);
+    }
+
+    @Override
+    String stuffName() {
+        return "蜂蜜";
+    }
+}
diff --git a/src/com/anly/designpattern/decorator/Ice.java b/src/com/anly/designpattern/decorator/Ice.java
@@ -0,0 +1,16 @@
+package com.anly.designpattern.decorator;
+
+/**
+ * Created by mingjun on 2016/11/22.
+ */
+public class Ice extends Stuff {
+
+    public Ice(Drink originalDrink) {
+        super(originalDrink);
+    }
+
+    @Override
+    String stuffName() {
+        return "冰";
+    }
+}
diff --git a/src/com/anly/designpattern/decorator/Stuff.java b/src/com/anly/designpattern/decorator/Stuff.java
@@ -0,0 +1,19 @@
+package com.anly.designpattern.decorator;
+
+/**
+ * Created by mingjun on 2016/11/22.
+ */
+public abstract class Stuff implements Drink {
+
+    private Drink originalDrink;
+    public Stuff(Drink originalDrink) {
+        this.originalDrink = originalDrink;
+    }
+
+    @Override
+    public String make() {
+        return originalDrink.make() + ", 加一份" + stuffName();
+    }
+
+    abstract String stuffName();
+}
diff --git a/src/com/anly/designpattern/decorator/Sugar.java b/src/com/anly/designpattern/decorator/Sugar.java
@@ -0,0 +1,16 @@
+package com.anly.designpattern.decorator;
+
+/**
+ * Created by mingjun on 2016/11/22.
+ */
+public class Sugar extends Stuff {
+
+    public Sugar(Drink originalDrink) {
+        super(originalDrink);
+    }
+
+    @Override
+    String stuffName() {
+        return "糖";
+    }
+}
diff --git a/src/com/anly/designpattern/decorator/XDrink.java b/src/com/anly/designpattern/decorator/XDrink.java
@@ -0,0 +1,12 @@
+package com.anly.designpattern.decorator;
+
+/**
+ * Created by mingjun on 2016/11/22.
+ */
+public class XDrink implements Drink {
+
+    @Override
+    public String make() {
+        return "这是一杯X牌饮料";
+    }
+}
diff --git a/src/com/anly/designpattern/decorator/XiaoGuang.java b/src/com/anly/designpattern/decorator/XiaoGuang.java
@@ -0,0 +1,34 @@
+package com.anly.designpattern.decorator;
+
+/**
+ * Created by mingjun on 16/11/10.
+ */
+public class XiaoGuang {
+
+    public static void main(String[] args) {
+
+        Drink coke = new Coke();
+        System.out.println(coke.make());
+
+        // 老板, 来一杯可乐, 加冰
+        Drink iceCoke = new Ice(new Coke());
+        System.out.println(iceCoke.make());
+
+        // 老板, X饮料, 加冰, 加糖
+        Drink iceSugarXDrink = new Ice(new Sugar(new XDrink()));
+        System.out.println(iceSugarXDrink.make());
+
+        // 可乐, 加两份冰, 加蜂蜜
+        Drink doubleIceHoneyCoke = new Ice(new Ice(new Honey(new Coke())));
+        System.out.println(doubleIceHoneyCoke.make());
+
+        // 加蜂蜜的X饮料
+        Drink honeyXDrink = new Honey(new XDrink());
+        System.out.println(honeyXDrink.make());
+
+        // 还要加冰
+        Drink iceHoneyXDrink = new Ice(honeyXDrink);
+        System.out.println(iceHoneyXDrink.make());
+
+    }
+}
