java.lang.Object
- org.springframework.orm.jpa.ExtendedEntityManagerCreator

```
public abstract class ExtendedEntityManagerCreator
extends Object
```
Delegate for creating a variety of EntityManager proxies that follow the JPA spec's semantics for "extended" EntityManagers.
Supports several different variants of "extended" EntityManagers: in particular, an "application-managed extended EntityManager", as defined by EntityManagerFactory.createEntityManager(), as well as a "container-managed extended EntityManager", as defined by PersistenceContextType.EXTENDED.
The original difference between "application-managed" and "container-managed" was the need for explicit joining of an externally managed transaction through the EntityManager.joinTransaction() method in the "application" case versus the automatic joining on each user-level EntityManager operation in the "container" case. As of JPA 2.1, both join modes are available with both kinds of EntityManagers, so the difference between "application-" and "container-managed" is now primarily in the join mode default and in the restricted lifecycle of a container-managed EntityManager (i.e. tied to the object that it is injected into).
从以下版本开始:
2.0
作者:
Juergen Hoeller, Rod Johnson
另请参阅:
EntityManagerFactory.createEntityManager(), PersistenceContextType.EXTENDED, EntityManager.joinTransaction(), SharedEntityManagerCreator

构造器概要
构造器
构造器说明
ExtendedEntityManagerCreator()

方法概要

所有方法静态方法具体方法
修饰符和类型	方法	说明
`static EntityManager`	`createApplicationManagedEntityManager(EntityManager rawEntityManager, EntityManagerFactoryInfo emfInfo)`	Create an application-managed extended EntityManager proxy.
`static EntityManager`	`createApplicationManagedEntityManager(EntityManager rawEntityManager, EntityManagerFactoryInfo emfInfo, boolean synchronizedWithTransaction)`	Create an application-managed extended EntityManager proxy.
`static EntityManager`	`createContainerManagedEntityManager(EntityManagerFactory emf)`	Create a container-managed extended EntityManager proxy.
`static EntityManager`	`createContainerManagedEntityManager(EntityManagerFactory emf, Map<?,?> properties)`	Create a container-managed extended EntityManager proxy.
`static EntityManager`	`createContainerManagedEntityManager(EntityManagerFactory emf, Map<?,?> properties, boolean synchronizedWithTransaction)`	Create a container-managed extended EntityManager proxy.
`static EntityManager`	`createContainerManagedEntityManager(EntityManager rawEntityManager, EntityManagerFactoryInfo emfInfo)`	Create a container-managed extended EntityManager proxy.

从类继承的方法 java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- 构造器详细资料
  - ExtendedEntityManagerCreator
```
public ExtendedEntityManagerCreator()
```
- 方法详细资料
  - createApplicationManagedEntityManager
```
public static EntityManager createApplicationManagedEntityManager(EntityManager rawEntityManager,
                                                                  EntityManagerFactoryInfo emfInfo)
```
    Create an application-managed extended EntityManager proxy.
    参数:
    rawEntityManager - the raw EntityManager to decorate
    emfInfo - the EntityManagerFactoryInfo to obtain the JpaDialect and PersistenceUnitInfo from
    返回:
    an application-managed EntityManager that can join transactions but does not participate in them automatically
  - createApplicationManagedEntityManager
```
public static EntityManager createApplicationManagedEntityManager(EntityManager rawEntityManager,
                                                                  EntityManagerFactoryInfo emfInfo,
                                                                  boolean synchronizedWithTransaction)
```
    Create an application-managed extended EntityManager proxy.
    参数:
    rawEntityManager - the raw EntityManager to decorate
    emfInfo - the EntityManagerFactoryInfo to obtain the JpaDialect and PersistenceUnitInfo from
    synchronizedWithTransaction - whether to automatically join ongoing transactions (according to the JPA 2.1 SynchronizationType rules)
    返回:
    an application-managed EntityManager that can join transactions but does not participate in them automatically
    从以下版本开始:
    4.0
  - createContainerManagedEntityManager
```
public static EntityManager createContainerManagedEntityManager(EntityManager rawEntityManager,
                                                                EntityManagerFactoryInfo emfInfo)
```
    Create a container-managed extended EntityManager proxy.
    参数:
    rawEntityManager - the raw EntityManager to decorate
    emfInfo - the EntityManagerFactoryInfo to obtain the JpaDialect and PersistenceUnitInfo from
    返回:
    a container-managed EntityManager that will automatically participate in any managed transaction
  - createContainerManagedEntityManager
```
public static EntityManager createContainerManagedEntityManager(EntityManagerFactory emf)
```
    Create a container-managed extended EntityManager proxy.
    参数:
    emf - the EntityManagerFactory to create the EntityManager with. If this implements the EntityManagerFactoryInfo interface, the corresponding JpaDialect and PersistenceUnitInfo will be detected accordingly.
    返回:
    a container-managed EntityManager that will automatically participate in any managed transaction
    另请参阅:
    EntityManagerFactory.createEntityManager()
  - createContainerManagedEntityManager
```
public static EntityManager createContainerManagedEntityManager(EntityManagerFactory emf,
                                                                Map<?,?> properties)
```
    Create a container-managed extended EntityManager proxy.
    参数:
    emf - the EntityManagerFactory to create the EntityManager with. If this implements the EntityManagerFactoryInfo interface, the corresponding JpaDialect and PersistenceUnitInfo will be detected accordingly.
    properties - the properties to be passed into the createEntityManager call (may be null)
    返回:
    a container-managed EntityManager that will automatically participate in any managed transaction
    另请参阅:
    EntityManagerFactory.createEntityManager(java.util.Map)
  - createContainerManagedEntityManager
```
public static EntityManager createContainerManagedEntityManager(EntityManagerFactory emf,
                                                                Map<?,?> properties,
                                                                boolean synchronizedWithTransaction)
```
    Create a container-managed extended EntityManager proxy.
    参数:
    emf - the EntityManagerFactory to create the EntityManager with. If this implements the EntityManagerFactoryInfo interface, the corresponding JpaDialect and PersistenceUnitInfo will be detected accordingly.
    properties - the properties to be passed into the createEntityManager call (may be null)
    synchronizedWithTransaction - whether to automatically join ongoing transactions (according to the JPA 2.1 SynchronizationType rules)
    返回:
    a container-managed EntityManager that expects container-driven lifecycle management but may opt out of automatic transaction synchronization
    从以下版本开始:
    4.0
    另请参阅:
    EntityManagerFactory.createEntityManager(java.util.Map)

类 ExtendedEntityManagerCreator

构造器概要

方法概要

从类继承的方法 java.lang.Object

构造器详细资料

ExtendedEntityManagerCreator

方法详细资料

createApplicationManagedEntityManager

createApplicationManagedEntityManager

createContainerManagedEntityManager

createContainerManagedEntityManager

createContainerManagedEntityManager

createContainerManagedEntityManager