Class LocalEntityManagerFactoryBean
- java.lang.Object
- org.springframework.orm.jpa.AbstractEntityManagerFactoryBean
- org.springframework.orm.jpa.LocalEntityManagerFactoryBean
- All Implemented Interfaces:
Serializable
,Aware
,BeanClassLoaderAware
,BeanFactoryAware
,BeanNameAware
,DisposableBean
,FactoryBean<EntityManagerFactory>
,InitializingBean
,PersistenceExceptionTranslator
,EntityManagerFactoryInfo
public class LocalEntityManagerFactoryBean extends AbstractEntityManagerFactoryBean
FactoryBean
that creates a JPAEntityManagerFactory
according to JPA's standard standalone bootstrap contract. This is the simplest way to set up a shared JPA EntityManagerFactory in a Spring application context; the EntityManagerFactory can then be passed to JPA-based DAOs via dependency injection. Note that switching to a JNDI lookup or to aLocalContainerEntityManagerFactoryBean
definition is just a matter of configuration!Configuration settings are usually read from a
META-INF/persistence.xml
config file, residing in the class path, according to the JPA standalone bootstrap contract. Additionally, most JPA providers will require a special VM agent (specified on JVM startup) that allows them to instrument application classes. See the Java Persistence API specification and your provider documentation for setup details.This EntityManagerFactory bootstrap is appropriate for standalone applications which solely use JPA for data access. If you want to set up your persistence provider for an external DataSource and/or for global transactions which span multiple resources, you will need to either deploy it into a full Java EE application server and access the deployed EntityManagerFactory via JNDI, or use Spring's
LocalContainerEntityManagerFactoryBean
with appropriate configuration for local setup according to JPA's container contract.Note: This FactoryBean has limited configuration power in terms of what configuration it is able to pass to the JPA provider. If you need more flexible configuration, for example passing a Spring-managed JDBC DataSource to the JPA provider, consider using Spring's more powerful
LocalContainerEntityManagerFactoryBean
instead.NOTE: Spring's JPA support requires JPA 2.0 or higher, as of Spring 4.0. JPA 1.0 based applications are still supported; however, a JPA 2.0/2.1 compliant persistence provider is needed at runtime.
- Since:
- 2.0
- Author:
- Juergen Hoeller, Rod Johnson
- See Also:
AbstractEntityManagerFactoryBean.setJpaProperties(java.util.Properties)
,AbstractEntityManagerFactoryBean.setJpaVendorAdapter(org.springframework.orm.jpa.JpaVendorAdapter)
,JpaTransactionManager.setEntityManagerFactory(javax.persistence.EntityManagerFactory)
,LocalContainerEntityManagerFactoryBean
,JndiObjectFactoryBean
,SharedEntityManagerBean
,Persistence.createEntityManagerFactory(java.lang.String)
,PersistenceProvider.createEntityManagerFactory(java.lang.String, java.util.Map)
, Serialized Form
Field Summary
Fields inherited from class org.springframework.orm.jpa.AbstractEntityManagerFactoryBean
logger
Constructor Summary
Constructors Constructor Description LocalEntityManagerFactoryBean()
Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description protected EntityManagerFactory
createNativeEntityManagerFactory()
Initialize the EntityManagerFactory for the given configuration.Methods inherited from class org.springframework.orm.jpa.AbstractEntityManagerFactoryBean
afterPropertiesSet, createEntityManagerFactoryProxy, destroy, getBeanClassLoader, getBootstrapExecutor, getDataSource, getEntityManagerInterface, getJpaDialect, getJpaPropertyMap, getJpaVendorAdapter, getNativeEntityManagerFactory, getObject, getObjectType, getPersistenceProvider, getPersistenceUnitInfo, getPersistenceUnitName, isSingleton, setBeanClassLoader, setBeanFactory, setBeanName, setBootstrapExecutor, setEntityManagerFactoryInterface, setEntityManagerInterface, setJpaDialect, setJpaProperties, setJpaPropertyMap, setJpaVendorAdapter, setPersistenceProvider, setPersistenceProviderClass, setPersistenceUnitName, translateExceptionIfPossible, writeReplace
Constructor Detail
LocalEntityManagerFactoryBean
public LocalEntityManagerFactoryBean()
Method Detail
createNativeEntityManagerFactory
protected EntityManagerFactory createNativeEntityManagerFactory() throws PersistenceException
Initialize the EntityManagerFactory for the given configuration.- Specified by:
createNativeEntityManagerFactory
in classAbstractEntityManagerFactoryBean
- Returns:
- EntityManagerFactory instance returned by this FactoryBean
- Throws:
PersistenceException
- in case of JPA initialization errors