add EntityManagerInitializer

Author: xlorne

springboot-starter-data-fast/src/main/java/com/codingapi/springboot/fast/DataFastConfiguration.java

@@ -1,6 +1,7 @@
 package com.codingapi.springboot.fast;
 
 import com.codingapi.springboot.fast.executor.JpaExecutor;
+import com.codingapi.springboot.fast.manager.EntityManagerInitializer;
 import com.codingapi.springboot.fast.mapping.MvcEndpointMapping;
 import com.codingapi.springboot.fast.registrar.MvcMappingRegistrar;
 import org.springframework.aop.Advisor;
@@ -33,6 +34,12 @@ public MvcMappingRegistrar mappingRegistrar(MvcEndpointMapping mvcEndpointMappin
         return new MvcMappingRegistrar(mvcEndpointMapping, jpaExecutor,advisors);
     }
 
+    @Bean
+    @ConditionalOnMissingBean
+    public EntityManagerInitializer entityManagerInitializer(EntityManager entityManager){
+        return new EntityManagerInitializer(entityManager);
+    }
+
     @Bean
     @ConditionalOnMissingBean
     public JpaExecutor jpaExecutor(EntityManager entityManager) {

springboot-starter-data-fast/src/main/java/com/codingapi/springboot/fast/manager/EntityManagerContent.java

@@ -0,0 +1,30 @@
+package com.codingapi.springboot.fast.manager;
+
+import jakarta.persistence.EntityManager;
+import lombok.Getter;
+
+public class EntityManagerContent {
+
+    @Getter
+    private EntityManager entityManager;
+
+
+    private EntityManagerContent() {
+    }
+
+
+    @Getter
+    private final static EntityManagerContent instance = new EntityManagerContent();
+
+
+    public void push(EntityManager entityManager) {
+        this.entityManager = entityManager;
+    }
+
+
+    public void detach(Object entity) {
+        if (entityManager != null) {
+            entityManager.detach(entity);
+        }
+    }
+}

springboot-starter-data-fast/src/main/java/com/codingapi/springboot/fast/manager/EntityManagerInitializer.java

@@ -0,0 +1,16 @@
+package com.codingapi.springboot.fast.manager;
+
+import jakarta.persistence.EntityManager;
+import lombok.AllArgsConstructor;
+import org.springframework.beans.factory.InitializingBean;
+
+@AllArgsConstructor
+public class EntityManagerInitializer implements InitializingBean {
+
+    private final EntityManager entityManager;
+
+    @Override
+    public void afterPropertiesSet() throws Exception {
+        EntityManagerContent.getInstance().push(entityManager);
+    }
+}