[Add] CacheStore-api 增加对缓存存储源类型的标注, 以协助 Core 按需选择缓存容器;

[Add] CacheStoreSource 增加缓存存储源类型枚举类, 暂时添加目前已涉及的类型;
[Update] Factory 增加 CacheStoreSource 项目(因为 CacheStoreSource 是没有更改需要的;

ContentGrabbingJi-CacheStore-api/src/main/java/net/lamgc/cgj/bot/cache/CacheStoreSource.java

@@ -0,0 +1,37 @@
+/*
+ * Copyright (C) 2020  LamGC
+ *
+ * ContentGrabbingJi is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * ContentGrabbingJi is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package net.lamgc.cgj.bot.cache;
+
+/**
+ * 缓存容器类型.
+ * @author LamGC
+ */
+public enum CacheStoreSource {
+    /**
+     * 内存存储(速度最快).
+     */
+    MEMORY,
+    /**
+     * 本地存储(单机存储).
+     */
+    LOCAL,
+    /**
+     * 远端存储(例如网络, 可多机读写且与单机无关).
+     */
+    REMOTE
+}

ContentGrabbingJi-CacheStore-api/src/main/java/net/lamgc/cgj/bot/cache/Factory.java

@@ -47,4 +47,11 @@ public @interface Factory {
      */
     int priority() default FactoryPriority.PRIORITY_NORMAL;
 
+    /**
+     * CacheStore 存储源类型.
+     * <p> 可帮助 Core 根据需要选择对应的类型(比如部分低TTL临时缓存追求速度不强求持久化, 建立热点数据高频短时缓存等).
+     * @return 返回存储源类型.
+     */
+    CacheStoreSource source() default CacheStoreSource.LOCAL;
+
 }