CompressContext.java

package com.cheng.zenofdesignpatterns.patternpk.behavioral.command_vs_strategy.strategy;

/**
 * 环境角色
 */
public class CompressContext {

	// 指向抽象算法
	private Algorithm al;
	
	// 构造函数传递具体的算法
	public CompressContext(Algorithm _al){
		this.al = _al;
	}
	
	// 执行压缩算法
	public boolean compress(String source,String to){
		return al.compress(source, to);
	}
	
	// 执行解压缩算法
	public boolean uncompress(String source,String to){
		return al.uncompress(source, to);
	}

}