Flyweight.java

package com.cheng.zenofdesignpatterns.patterns.flyweight.common;

/**
 * 抽象享元角色
 */
public abstract class Flyweight {

    // 内部状态
    private String intrinsic;
    // 外部状态
    protected final String Extrinsic;

    // 要求享元角色必须接受外部状态
    public Flyweight(String _Extrinsic){
        this.Extrinsic = _Extrinsic;
    }

    // 定义业务操作
    public abstract void operate();

    // 内部状态的getter/setter
    public String getIntrinsic() {
        return intrinsic;
    }
    public void setIntrinsic(String intrinsic) {
        this.intrinsic = intrinsic;
    }

}