ehcache search

 

• 在用ehcache做搜索的时候,cache不能存放于非内存上(缓存初始化失败),至v 2.5.2,ehcache还没有实现非内存搜索,因此在做缓存的时候不能flush,此方法会将缓存写入硬盘,因此会使缓存丢失.

• CacheManager cachemanager = CacheManager.getInstance();
  		Cache cache = cachemanager.getCache("andCache");
  		Attribute<String> attribute = cache.getSearchAttribute("pilepoint_number");
  		Query query = cache.createQuery();
  		query.includeValues();
  		query.includeAttribute(attribute);
  		query.addCriteria(attribute.ilike("00010*"));
  		
  		long start = System.currentTimeMillis();
  		Results rls = query.execute();
  		System.out.println("search time   : " + (System.currentTimeMillis() - start));
  		
  		System.out.println(rls.size());
  		
  		List<Result> all = rls.all();
  		
  		for (Result result : all) {
  			System.out.println(result.getKey());//此方法对应query.includeKeys();不在查询前设置此方法会抛出异常,结果集包含key,以下类似
  			System.out.println(result.getAttribute(attribute));
  			System.out.println(result.getValue());
  		}

    (补一句,,ehcache 非常快,api挺友好.)