ElasticsearchOperations 조회 방법 분석

	/**
	 *  1.  
	 * Execute the criteria query against elasticsearch and return result as {@link List}
	 *
	 * @param query  ， 
	 * @param clazz
	 * @param 
	 * @return
	 */
	 List queryForList(CriteriaQuery query, Class clazz);

	/**
	 *  2.  
	 * Execute the string query against elasticsearch and return result as {@link List}
	 *
	 * @param query
	 * @param clazz
	 * @param 
	 * @return
	 */
	 List queryForList(StringQuery query, Class clazz);

	/**
	 *  3.  
	 * Execute the search query against elasticsearch and return result as {@link List}
	 *
	 * @param query
	 * @param clazz
	 * @param 
	 * @return
	 */
	 List queryForList(SearchQuery query, Class clazz);

	/**
	 *  4.  
	 *     ， 
	 * Execute the multi search query against elasticsearch and return result as {@link List}
	 *
	 * @param queries
	 * @param clazz
	 * @param 
	 * @return
	 */
	default  List> queryForList(List queries, Class clazz) {
		return queryForPage(queries, clazz).stream().map(Page::getContent).collect(Collectors.toList());
	}
	
	/**
	 * 5.  ids， 
	 * Execute a multiGet against elasticsearch for the given ids
	 *
	 * @param searchQuery
	 * @param clazz
	 * @return
	 */
	 List multiGet(SearchQuery searchQuery, Class clazz);

	/**
	 * 6.  ids ， 
	 * Execute a multiGet against elasticsearch for the given ids with MultiGetResultMapper
	 *
	 * @param searchQuery
	 * @param clazz
	 * @param multiGetResultMapper
	 * @return
	 */
	 List multiGet(SearchQuery searchQuery, Class clazz, MultiGetResultMapper multiGetResultMapper);