ElasticsearchOperations查询方法解析

╰+攻爆jí腚メ 2023-02-12 14:23 3阅读 0赞

/**
    	 *  1. 根据条件查询
    	 * Execute the criteria query against elasticsearch and return result as {@link List}
    	 *
    	 * @param query 字段名称逻辑拼接字段的值，支持排序和分页
    	 * @param clazz
    	 * @param <T>
    	 * @return
    	 */
    	<T> List<T> queryForList(CriteriaQuery query, Class<T> clazz);
    
    	/**
    	 *  2. 根据字符串查询
    	 * Execute the string query against elasticsearch and return result as {@link List}
    	 *
    	 * @param query
    	 * @param clazz
    	 * @param <T>
    	 * @return
    	 */
    	<T> List<T> queryForList(StringQuery query, Class<T> clazz);
    
    	/**
    	 *  3. 根据搜索查询
    	 * Execute the search query against elasticsearch and return result as {@link List}
    	 *
    	 * @param query
    	 * @param clazz
    	 * @param <T>
    	 * @return
    	 */
    	<T> List<T> queryForList(SearchQuery query, Class<T> clazz);
    
    	/**
    	 *  4. 根据多搜索查询
    	 *    一个接口默认方法，实现类可以调用
    	 * Execute the multi search query against elasticsearch and return result as {@link List}
    	 *
    	 * @param queries
    	 * @param clazz
    	 * @param <T>
    	 * @return
    	 */
    	default <T> List<List<T>> queryForList(List<SearchQuery> queries, Class<T> clazz) {
    		return queryForPage(queries, clazz).stream().map(Page::getContent).collect(Collectors.toList());
    	}
    	
    	/**
    	 * 5. 通过ids，批量查询
    	 * Execute a multiGet against elasticsearch for the given ids
    	 *
    	 * @param searchQuery
    	 * @param clazz
    	 * @return
    	 */
    	<T> List<T> multiGet(SearchQuery searchQuery, Class<T> clazz);
    
    	/**
    	 * 6. 通过ids和查询条件，批量查询
    	 * Execute a multiGet against elasticsearch for the given ids with MultiGetResultMapper
    	 *
    	 * @param searchQuery
    	 * @param clazz
    	 * @param multiGetResultMapper
    	 * @return
    	 */
    	<T> List<T> multiGet(SearchQuery searchQuery, Class<T> clazz, MultiGetResultMapper multiGetResultMapper);