路一步步走>> 設計模式十一:FlyWeight-享元
阿新 • • 發佈:2018-12-08
package com.test.DPs.JieGou.FlyWeight; import java.util.HashMap; /** * 結構型:FlyWeight-享元 橋接:作用面為 物件 * * 用途:運用共享技術,有效地支援大量細粒度物件。 */ abstract class flywei{} public class FlyWeight extends flywei{ Object obj; public FlyWeight(Object obj){ this.obj = obj; } } class FlyWeightFactory{ private HashMap<Object, FlyWeight> data; public FlyWeightFactory(){ data = new HashMap<>();} public FlyWeight getFlyWeight(Object object){ if(data.containsKey(object)){ //if(data.containsKey(object)){ return data.get(object); }else{ FlyWeight flyweight = new FlyWeight(object); data.put(object, flyweight); return flyweight; } } }