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

所有已实现的接口:
Aware, BeanFactoryAware
直接已知子类:
HibernateJpaSessionFactoryBean, OpenEntityManagerInViewInterceptor, SharedEntityManagerBean
```
public abstract class EntityManagerFactoryAccessor
extends Object
implements BeanFactoryAware
```
Base class for any class that needs to access a JPA EntityManagerFactory, usually in order to obtain a JPA EntityManager. Defines common properties.
从以下版本开始:
2.0
作者:
Juergen Hoeller
另请参阅:
EntityManagerFactoryUtils

字段概要
字段
修饰符和类型字段说明
protected Log logger
Logger available to subclasses

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

方法概要

所有方法实例方法具体方法
修饰符和类型	方法	说明
`protected EntityManager`	`createEntityManager()`	Obtain a new EntityManager from this accessor's EntityManagerFactory.
`EntityManagerFactory`	`getEntityManagerFactory()`	Return the JPA EntityManagerFactory that should be used to create EntityManagers.
`Map<String,Object>`	`getJpaPropertyMap()`	Allow Map access to the JPA properties to be passed to the persistence provider, with the option to add or override specific entries.
`String`	`getPersistenceUnitName()`	Return the name of the persistence unit to access the EntityManagerFactory for, if any.
`protected EntityManager`	`getTransactionalEntityManager()`	Obtain the transactional EntityManager for this accessor's EntityManagerFactory, if any.
`void`	`setBeanFactory(BeanFactory beanFactory)`	Retrieves an EntityManagerFactory by persistence unit name, if none set explicitly.
`void`	`setEntityManagerFactory(EntityManagerFactory emf)`	Set the JPA EntityManagerFactory that should be used to create EntityManagers.
`void`	`setJpaProperties(Properties jpaProperties)`	Specify JPA properties, to be passed into `EntityManagerFactory.createEntityManager(Map)` (if any).
`void`	`setJpaPropertyMap(Map<String,Object> jpaProperties)`	Specify JPA properties as a Map, to be passed into `EntityManagerFactory.createEntityManager(Map)` (if any).
`void`	`setPersistenceUnitName(String persistenceUnitName)`	Set the name of the persistence unit to access the EntityManagerFactory for.

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

- 字段详细资料
  - logger
```
protected final Log logger
```
    Logger available to subclasses
- 构造器详细资料
  - EntityManagerFactoryAccessor
```
public EntityManagerFactoryAccessor()
```
- 方法详细资料
  - setEntityManagerFactory
```
public void setEntityManagerFactory(EntityManagerFactory emf)
```
    Set the JPA EntityManagerFactory that should be used to create EntityManagers.
    另请参阅:
    EntityManagerFactory.createEntityManager(), EntityManagerFactory.createEntityManager(java.util.Map)
  - getEntityManagerFactory
```
public EntityManagerFactory getEntityManagerFactory()
```
    Return the JPA EntityManagerFactory that should be used to create EntityManagers.
  - setPersistenceUnitName
```
public void setPersistenceUnitName(String persistenceUnitName)
```
    Set the name of the persistence unit to access the EntityManagerFactory for.
    This is an alternative to specifying the EntityManagerFactory by direct reference, resolving it by its persistence unit name instead. If no EntityManagerFactory and no persistence unit name have been specified, a default EntityManagerFactory will be retrieved through finding a single unique bean of type EntityManagerFactory.
    另请参阅:
    setEntityManagerFactory(javax.persistence.EntityManagerFactory)
  - getPersistenceUnitName
```
public String getPersistenceUnitName()
```
    Return the name of the persistence unit to access the EntityManagerFactory for, if any.
  - setJpaProperties
```
public void setJpaProperties(Properties jpaProperties)
```
    Specify JPA properties, to be passed into EntityManagerFactory.createEntityManager(Map) (if any).
    Can be populated with a String "value" (parsed via PropertiesEditor) or a "props" element in XML bean definitions.
    另请参阅:
    EntityManagerFactory.createEntityManager(java.util.Map)
  - setJpaPropertyMap
```
public void setJpaPropertyMap(Map<String,Object> jpaProperties)
```
    Specify JPA properties as a Map, to be passed into EntityManagerFactory.createEntityManager(Map) (if any).
    Can be populated with a "map" or "props" element in XML bean definitions.
    另请参阅:
    EntityManagerFactory.createEntityManager(java.util.Map)
  - getJpaPropertyMap
```
public Map<String,Object> getJpaPropertyMap()
```
    Allow Map access to the JPA properties to be passed to the persistence provider, with the option to add or override specific entries.
    Useful for specifying entries directly, for example via "jpaPropertyMap[myKey]".
  - setBeanFactory
```
public void setBeanFactory(BeanFactory beanFactory)
                    throws BeansException
```
    Retrieves an EntityManagerFactory by persistence unit name, if none set explicitly. Falls back to a default EntityManagerFactory bean if no persistence unit specified.
    指定者:
    setBeanFactory 在接口中 BeanFactoryAware
    参数:
    beanFactory - owning BeanFactory (never null). The bean can immediately call methods on the factory.
    抛出:
    BeansException - in case of initialization errors
    另请参阅:
    setPersistenceUnitName(java.lang.String)
  - createEntityManager
```
protected EntityManager createEntityManager()
                                     throws IllegalStateException
```
    Obtain a new EntityManager from this accessor's EntityManagerFactory.
    Can be overridden in subclasses to create specific EntityManager variants.
    返回:
    a new EntityManager
    抛出:
    IllegalStateException - if this accessor is not configured with an EntityManagerFactory
    另请参阅:
    EntityManagerFactory.createEntityManager(), EntityManagerFactory.createEntityManager(java.util.Map)
  - getTransactionalEntityManager
```
protected EntityManager getTransactionalEntityManager()
                                               throws IllegalStateException
```
    Obtain the transactional EntityManager for this accessor's EntityManagerFactory, if any.
    返回:
    the transactional EntityManager, or null if none
    抛出:
    IllegalStateException - if this accessor is not configured with an EntityManagerFactory
    另请参阅:
    EntityManagerFactoryUtils.getTransactionalEntityManager(javax.persistence.EntityManagerFactory), EntityManagerFactoryUtils.getTransactionalEntityManager(javax.persistence.EntityManagerFactory, java.util.Map)

类 EntityManagerFactoryAccessor

字段概要

构造器概要

方法概要

从类继承的方法 java.lang.Object

字段详细资料

logger

构造器详细资料

EntityManagerFactoryAccessor

方法详细资料

setEntityManagerFactory

getEntityManagerFactory

setPersistenceUnitName

getPersistenceUnitName

setJpaProperties

setJpaPropertyMap

getJpaPropertyMap

setBeanFactory

createEntityManager

getTransactionalEntityManager