001/** 002 * Copyright (c) 2015-2022, Michael Yang 杨福海 (fuhai999@gmail.com). 003 * <p> 004 * Licensed under the Apache License, Version 2.0 (the "License"); 005 * you may not use this file except in compliance with the License. 006 * You may obtain a copy of the License at 007 * <p> 008 * http://www.apache.org/licenses/LICENSE-2.0 009 * <p> 010 * Unless required by applicable law or agreed to in writing, software 011 * distributed under the License is distributed on an "AS IS" BASIS, 012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 013 * See the License for the specific language governing permissions and 014 * limitations under the License. 015 */ 016package io.jboot.components.cache.annotation; 017 018import java.lang.annotation.*; 019 020/** 021 * @author michael yang 022 */ 023@Inherited 024@Retention(RetentionPolicy.RUNTIME) 025@Target({ElementType.METHOD}) 026public @interface Cacheable { 027 028 /** 029 * 缓存名称 030 * 031 * @return 032 */ 033 String name(); 034 035 /** 036 * 缓存的key 037 * 038 * @return 039 */ 040 String key() default ""; 041 042 /** 043 * 缓存时间,单位秒 044 * 默认情况下,缓存永久有效 045 * 046 * @return 047 */ 048 int liveSeconds() default 0; // 0,系统配置默认,默认情况下永久有效 049 050 /** 051 * 是否对 null 值进行缓存 052 * 053 * @return 054 */ 055 boolean nullCacheEnable() default false; 056 057 /** 058 * 是否对返回的数据进行 Copy 后返回 059 * 060 * @return 061 */ 062 boolean returnCopyEnable() default false; 063 064 /** 065 * 在什么情况下不进行缓存 066 * 这里编写的是 JFinal 模板引擎的表达式 067 * 068 * @return 069 */ 070 String unless() default ""; 071}