feat: 新增 MyBatisFlexInitializer.java 方便用户对 MyBatisFlex 进行初始化配置

mybatis-flex-spring-boot-starter/src/main/java/com/mybatisflex/spring/boot/MyBatisFlexInitializer.java

@@ -0,0 +1,36 @@
+/*
+ *  Copyright (c) 2022-2023, Mybatis-Flex (fuhai999@gmail.com).
+ *  <p>
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *  <p>
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *  <p>
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+package com.mybatisflex.spring.boot;
+
+/**
+ * MyBatisFlex 初始化监听器
+ * 一般可以用于去初始化：
+ *
+ * 1、自定义主键生成器
+ * 2、FlexGlobalConfig 的全局配置
+ * 3、多租户配置
+ * 4、动态表名配置
+ * 5、逻辑删除处理器配置
+ * 6、自定义脱敏规则
+ * 7、SQL 审计配置
+ * 8、SQL 打印配置
+ * 9、数据源解密器配置
+ * 10、自定义数据方言配置
+ * ...
+ */
+public interface MyBatisFlexInitializer {
+    void onInitBefore();
+}

mybatis-flex-spring-boot-starter/src/main/java/com/mybatisflex/spring/boot/MybatisFlexAutoConfiguration.java

@@ -121,6 +121,9 @@ public class MybatisFlexAutoConfiguration implements InitializingBean {
     //多租户
     protected final TenantFactory tenantFactory;
 
+    //初始化监听
+    protected final MyBatisFlexInitializer myBatisFlexInitializer;
+
 
     public MybatisFlexAutoConfiguration(MybatisFlexProperties properties, ObjectProvider<Interceptor[]> interceptorsProvider,
                                         ObjectProvider<TypeHandler[]> typeHandlersProvider, ObjectProvider<LanguageDriver[]> languageDriversProvider,
@@ -130,7 +133,8 @@ public class MybatisFlexAutoConfiguration implements InitializingBean {
                                         ObjectProvider<DataSourceDecipher> dataSourceDecipherProvider,
                                         ObjectProvider<DynamicTableProcessor> dynamicTableProcessorProvider,
                                         ObjectProvider<DynamicSchemaProcessor> dynamicSchemaProcessorProvider,
-                                        ObjectProvider<TenantFactory> tenantFactoryProvider
+                                        ObjectProvider<TenantFactory> tenantFactoryProvider,
+                                        ObjectProvider<MyBatisFlexInitializer> myBatisFlexInitializerProvider
     ) {
         this.properties = properties;
         this.interceptors = interceptorsProvider.getIfAvailable();
@@ -150,6 +154,9 @@ public class MybatisFlexAutoConfiguration implements InitializingBean {
 
         //多租户
         this.tenantFactory = tenantFactoryProvider.getIfAvailable();
+
+        //初始化监听器
+        this.myBatisFlexInitializer = myBatisFlexInitializerProvider.getIfAvailable();
     }
 
     @Override
@@ -174,6 +181,11 @@ public class MybatisFlexAutoConfiguration implements InitializingBean {
         if (tenantFactory != null) {
             TenantManager.setTenantFactory(tenantFactory);
         }
+
+        //初始化监听器
+        if (myBatisFlexInitializer != null) {
+            myBatisFlexInitializer.onInitBefore();
+        }
     }
 
     private void checkConfigFileExists() {