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程序员文章站 2022-05-17 19:40:00
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   单例+工厂+模板模式混用

   1.抽象类

public class QueryBalanceBg extends BaseHF{

	@Override
	public String execute(Map<String, Object> map) throws Exception {
	}
}

   2.继承抽象类实现模板模式

public abstract class BaseHF extends BaseLog{
	
	public abstract String execute(Map<String, Object> map) throws Exception;

}

   3.工厂模式+单例模式

public class BaseHFFactory {
	
	private static final String QUERYBALANCEBG = "QueryBalanceBg";
	
	private BaseHFFactory(){}
	
	private static BaseHFFactory baseHFFactory;
	
	public static BaseHFFactory getInstance(){
		if(baseHFFactory == null){
			baseHFFactory = new BaseHFFactory();
		}
		return baseHFFactory;
	}
	
	public BaseHF getBaseHF(String name){
		
		if(name.isEmpty()){
			return null;
		}
		if(QUERYBALANCEBG.equals(name)){
			return new QueryBalanceBg();
		}
		return null;
	}
}