composite組合模式 -- java模式
- 組合模式1
- 組合模式2
組合模式1
Component.java
package com.mark.pattern.composite;
public interface Component {
public void doSomething();
}
Composite.java
package com.mark.pattern.composite;
import java.util.ArrayList;
import java.util.List;
/**
* 組合模式
*
*/
public class Composite implements Component{
private List<Component> list =new ArrayList<Component>();
public void add(Component component) {
list.add(component);
}
public void remove(Component component) {
list.remove(component);
}
public List<Component> getAll(){
return this.list;
}
@Override
public void doSomething() {
for(Component component : list) {
component.doSomething();
}
}
}
Leaf.java
package com.mark.pattern.composite;
public class Leaf implements Component{
@Override
public void doSomething() {
System.out.println("執行方法");
}
}
Client.java
package com.mark.pattern.composite;
public class Client {
public static void main(String[] args) {
Component leaf1 = new Leaf();
Component leaf2 = new Leaf();
Composite comp1 = new Composite();
comp1.add(leaf1);
comp1.add(leaf2);
Component leaf3 = new Leaf();
Component leaf4 = new Leaf();
Composite comp2 =new Composite();
comp2.add(comp1);
comp2.add(leaf3);
comp2.add(leaf4);
comp2.doSomething();
}
}
組合模式2
Component.java
package com.mark.pattern.composite2;
import java.util.List;
public interface Component {
public void doSomething();
public void add(Component component);
public void remove(Component component);
public List<Component> getAll();
}
Composite.java
package com.mark.pattern.composite2;
import java.util.ArrayList;
import java.util.List;
public class Composite implements Component {
private List<Component> list = new ArrayList<Component>();
@Override
public void add(Component component) {
list.add(component);
}
@Override
public void doSomething() {
for (Component component : list) {
component.doSomething();
}
}
@Override
public List<Component> getAll() {
return this.list;
}
@Override
public void remove(Component component) {
list.remove(component);
}
}
Leaf.java
package com.mark.pattern.composite2;
import java.util.List;
public class Leaf implements Component {
@Override
public void add(Component component) {
}
@Override
public void doSomething() {
System.out.println("執行方法");
}
@Override
public List<Component> getAll() {
return null;
}
@Override
public void remove(Component component) {
}
}
Client.java
package com.mark.pattern.composite2;
public class Client {
public static void main(String[] args) {
Component leaf1 = new Leaf();
Component leaf2 = new Leaf();
Component comp1 = new Composite();
comp1.add(leaf1);
comp1.add(leaf2);
Component leaf3 = new Leaf();
Component leaf4 = new Leaf();
Component comp2 =new Composite();
comp2.add(comp1);
comp2.add(leaf3);
comp2.add(leaf4);
comp2.doSomething();
}
}