composite组合模式

composite组合模式 -- java模式

1. 组合模式1
2. 组合模式2

 组合模式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;

/**
 * 组合模式
 *
 */
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("执行方法");
	}
}

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();
	}
}

 组合模式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("执行方法");
	}

	@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();
	}
}