cachefactory.java

定制缓存的生命周期

package zhouyouguo.slack;

public class CacheFactory {

    private static ICacheInterface cache = null;
    
    /** *//**
			 * 获取caches指定的缓存
			 * 
			 * @param caches
			 * @return
			 */
    public static ICacheInterface getCacheInstance(Class caches){
        if(cache==null){
            try {
                cache = (ICacheInterface) caches.newInstance();
            } catch (InstantiationException e) {
                System.out.println("指定的缓存类有误,caches参数必须是ICacheInterface的实现类");
                e.printStackTrace();
            } catch (IllegalAccessException e) {
                System.out.println("指定的缓存类有误,caches参数必须是ICacheInterface的实现类");
                e.printStackTrace();
            }
        }
        return cache;
    }
    
    public static ICacheInterface getDefaultCache(){
        if(cache==null){
            cache = new DefaultCache();
        }else if(!(cache instanceof DefaultCache)){
            cache = new DefaultCache();
        }
        return cache;
    }
    
    public static void main(String[] args) {
    	ICacheInterface cache = CacheFactory.getDefaultCache();
        if(cache.contains("area1")){
            System.out.println(cache.get("area"));
        }else{
            cache.Insert("area1","福州1",10);
			cache.Insert("area9","福州99999999999999",100);
        }
    }
}