提交抽象工厂

justStarNew · justStarNew · commit 1b6e8e09397d · 2020-04-30T17:34:12.000+08:00
diff --git a/src/com/juststarnew/designpattern/abstractfactory/iterator/CollectionFactory.java b/src/com/juststarnew/designpattern/abstractfactory/iterator/CollectionFactory.java
@@ -0,0 +1,22 @@
+package com.juststarnew.designpattern.abstractfactory.iterator;
+
+import java.util.Collection;
+import java.util.Map;
+
+/**
+ * 描述：具体工厂
+ *
+ * @author zhangcai at 2020/4/30 17:18
+ * @version 1.0.0
+ */
+public class CollectionFactory<T> implements IFactory<T>{
+    @Override
+    public Iterator<T> genCollectionIterator(Collection<T> collection) {
+        return new CollectionIterator<>(collection);
+    }
+
+    @Override
+    public Iterator<T> genMapIterator(Map<T,Object> map) {
+        return new MapIterator<>(map);
+    }
+}
diff --git a/src/com/juststarnew/designpattern/abstractfactory/iterator/CollectionIterator.java b/src/com/juststarnew/designpattern/abstractfactory/iterator/CollectionIterator.java
@@ -0,0 +1,27 @@
+package com.juststarnew.designpattern.abstractfactory.iterator;
+
+import java.util.Collection;
+
+/**
+ * 描述：具体产品,使用了代理模式
+ *
+ * @author zhangcai at 2020/4/30 17:19
+ * @version 1.0.0
+ */
+public class CollectionIterator<T> implements Iterator<T>{
+    private java.util.Iterator<T> iterator;
+
+    public CollectionIterator(Collection<T> collection) {
+        this.iterator = collection.iterator();
+    }
+
+    @Override
+    public boolean hasNext() {
+        return iterator.hasNext();
+    }
+
+    @Override
+    public T next() {
+        return iterator.next();
+    }
+}
diff --git a/src/com/juststarnew/designpattern/abstractfactory/iterator/IFactory.java b/src/com/juststarnew/designpattern/abstractfactory/iterator/IFactory.java
@@ -0,0 +1,17 @@
+package com.juststarnew.designpattern.abstractfactory.iterator;
+
+import java.util.Collection;
+import java.util.Map;
+
+/**
+ * 描述：定义工厂,定义多个产品群。这里即返回遍历Collection
+ * 又返回Map的iterator
+ *
+ * @author zhangcai at 2020/4/30 17:13
+ * @version 1.0.0
+ */
+public interface IFactory<T> {
+    public Iterator<T> genCollectionIterator(Collection<T> collection);
+
+    public Iterator<T> genMapIterator(Map<T,Object> map);
+}
diff --git a/src/com/juststarnew/designpattern/abstractfactory/iterator/Iterator.java b/src/com/juststarnew/designpattern/abstractfactory/iterator/Iterator.java
@@ -0,0 +1,12 @@
+package com.juststarnew.designpattern.abstractfactory.iterator;
+
+/**
+ * 描述：定义抽象产品，可以用来遍历Collection和Map
+ *
+ * @author zhangcai at 2020/4/30 17:15
+ * @version 1.0.0
+ */
+public interface Iterator<T> {
+    boolean hasNext();
+    Object next();
+}
diff --git a/src/com/juststarnew/designpattern/abstractfactory/iterator/MapIterator.java b/src/com/juststarnew/designpattern/abstractfactory/iterator/MapIterator.java
@@ -0,0 +1,27 @@
+package com.juststarnew.designpattern.abstractfactory.iterator;
+
+import java.util.Map;
+
+/**
+ * 描述：具体产品
+ *
+ * @author zhangcai at 2020/4/30 17:21
+ * @version 1.0.0
+ */
+public class MapIterator<T> implements Iterator<T> {
+    private java.util.Iterator<Map.Entry<T, Object>> iterator;
+
+    public MapIterator(Map<T,Object> map) {
+        this.iterator = map.entrySet().iterator();
+    }
+
+    @Override
+    public boolean hasNext() {
+        return iterator.hasNext();
+    }
+
+    @Override
+    public Object next() {
+        return iterator.next().getValue();
+    }
+}
diff --git a/src/com/juststarnew/designpattern/abstractfactory/iterator/TestUse.java b/src/com/juststarnew/designpattern/abstractfactory/iterator/TestUse.java
@@ -0,0 +1,37 @@
+package com.juststarnew.designpattern.abstractfactory.iterator;
+
+import java.util.Collection;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.Map;
+
+/**
+ * 描述：
+ *
+ * @author zhangcai at 2020/4/30 17:25
+ * @version 1.0.0
+ */
+public class TestUse {
+
+    public static void main(String[] args) {
+        Collection<Integer> collection = new HashSet<>();
+        Map<Integer,Object> map = new HashMap<>();
+        for (int i = 0; i < 10; i++) {
+            collection.add(i);
+            map.put(i, i+"哈哈");
+        }
+        CollectionFactory<Integer> collectionFactory = new CollectionFactory<>();
+        Iterator<Integer> integerIterator = collectionFactory.genCollectionIterator(collection);
+        Iterator<Integer> integerIterator1 = collectionFactory.genMapIterator(map);
+        while (integerIterator.hasNext()) {
+            System.out.println(integerIterator.next());
+        }
+        System.out.println("----------------");
+        while (integerIterator1.hasNext()) {
+            System.out.println(integerIterator1.next());
+        }
+
+
+    }
+
+}
diff --git a/src/com/juststarnew/designpattern/abstractfactory/iterator/package-info.java b/src/com/juststarnew/designpattern/abstractfactory/iterator/package-info.java
@@ -0,0 +1,7 @@
+/**
+ * 描述：抽象工厂iterator举例
+ *
+ * @author zhangcai at 2020/4/30 17:13
+ * @version 1.0.0
+ */
+package com.juststarnew.designpattern.abstractfactory.iterator;
