Spring Framework

org.springframework.orm.hibernate4
Class LocalSessionFactoryBean

java.lang.Object
  extended by org.springframework.orm.hibernate4.HibernateExceptionTranslator
      extended by org.springframework.orm.hibernate4.LocalSessionFactoryBean
All Implemented Interfaces:
Aware, DisposableBean, FactoryBean<org.hibernate.SessionFactory>, InitializingBean, ResourceLoaderAware, PersistenceExceptionTranslator

public class LocalSessionFactoryBean
extends HibernateExceptionTranslator
implements FactoryBean<org.hibernate.SessionFactory>, ResourceLoaderAware, InitializingBean, DisposableBean

FactoryBean that creates a Hibernate SessionFactory. This is the usual way to set up a shared Hibernate SessionFactory in a Spring application context; the SessionFactory can then be passed to Hibernate-based data access objects via dependency injection.

NOTE: This variant of LocalSessionFactoryBean requires Hibernate 4.0 or higher. It is similar in role to the same-named class in the orm.hibernate3 package. However, in practice, it is closer to AnnotationSessionFactoryBean since its core purpose is to bootstrap a SessionFactory from annotation scanning.

Since:
3.1
Author:
Juergen Hoeller
See Also:
setDataSource(javax.sql.DataSource), setPackagesToScan(java.lang.String...)

Constructor Summary
LocalSessionFactoryBean()
           
 
Method Summary
 void afterPropertiesSet()
          Invoked by a BeanFactory after it has set all bean properties supplied (and satisfied BeanFactoryAware and ApplicationContextAware).
protected  org.hibernate.SessionFactory buildSessionFactory(LocalSessionFactoryBuilder sfb)
          Subclasses can override this method to perform custom initialization of the SessionFactory instance, creating it via the given Configuration object that got prepared by this LocalSessionFactoryBean.
 void destroy()
          Invoked by a BeanFactory on destruction of a singleton.
 org.hibernate.cfg.Configuration getConfiguration()
          Return the Hibernate Configuration object used to build the SessionFactory.
 java.util.Properties getHibernateProperties()
          Return the Hibernate properties, if any.
 org.hibernate.SessionFactory getObject()
          Return an instance (possibly shared or independent) of the object managed by this factory.
 java.lang.Class<?> getObjectType()
          Return the type of object that this FactoryBean creates, or null if not known in advance.
 boolean isSingleton()
          Is the object managed by this factory a singleton? That is, will FactoryBean.getObject() always return the same object (a reference that can be cached)?
 void setAnnotatedClasses(java.lang.Class<?>[] annotatedClasses)
          Specify annotated entity classes to register with this Hibernate SessionFactory.
 void setAnnotatedPackages(java.lang.String[] annotatedPackages)
          Specify the names of annotated packages, for which package-level annotation metadata will be read.
 void setCacheableMappingLocations(Resource[] cacheableMappingLocations)
          Set locations of cacheable Hibernate mapping files, for example as web app resource "/WEB-INF/mapping/example.hbm.xml".
 void setConfigLocation(Resource configLocation)
          Set the location of a single Hibernate XML config file, for example as classpath resource "classpath:hibernate.cfg.xml".
 void setConfigLocations(Resource[] configLocations)
          Set the locations of multiple Hibernate XML config files, for example as classpath resources "classpath:hibernate.cfg.xml,classpath:extension.cfg.xml".
 void setDataSource(javax.sql.DataSource dataSource)
          Set the DataSource to be used by the SessionFactory.
 void setEntityInterceptor(org.hibernate.Interceptor entityInterceptor)
          Set a Hibernate entity interceptor that allows to inspect and change property values before writing to and reading from the database.
 void setHibernateProperties(java.util.Properties hibernateProperties)
          Set Hibernate properties, such as "hibernate.dialect".
 void setMappingDirectoryLocations(Resource[] mappingDirectoryLocations)
          Set locations of directories that contain Hibernate mapping resources, like "WEB-INF/mappings".
 void setMappingJarLocations(Resource[] mappingJarLocations)
          Set locations of jar files that contain Hibernate mapping resources, like "WEB-INF/lib/example.hbm.jar".
 void setMappingLocations(Resource[] mappingLocations)
          Set locations of Hibernate mapping files, for example as classpath resource "classpath:example.hbm.xml".
 void setMappingResources(java.lang.String[] mappingResources)
          Set Hibernate mapping resources to be found in the class path, like "example.hbm.xml" or "mypackage/example.hbm.xml".
 void setNamingStrategy(org.hibernate.cfg.NamingStrategy namingStrategy)
          Set a Hibernate NamingStrategy for the SessionFactory, determining the physical column and table names given the info in the mapping document.
 void setPackagesToScan(java.lang.String... packagesToScan)
          Specify packages to search for autodetection of your entity classes in the classpath.
 void setResourceLoader(ResourceLoader resourceLoader)
          Set the ResourceLoader that this object runs in.
 
Methods inherited from class org.springframework.orm.hibernate4.HibernateExceptionTranslator
convertHibernateAccessException, translateExceptionIfPossible
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

LocalSessionFactoryBean

public LocalSessionFactoryBean()
Method Detail

setDataSource

public void setDataSource(javax.sql.DataSource dataSource)
Set the DataSource to be used by the SessionFactory. If set, this will override corresponding settings in Hibernate properties.

If this is set, the Hibernate settings should not define a connection provider to avoid meaningless double configuration.


setConfigLocation

public void setConfigLocation(Resource configLocation)
Set the location of a single Hibernate XML config file, for example as classpath resource "classpath:hibernate.cfg.xml".

Note: Can be omitted when all necessary properties and mapping resources are specified locally via this bean.

See Also:
Configuration.configure(java.net.URL)

setConfigLocations

public void setConfigLocations(Resource[] configLocations)
Set the locations of multiple Hibernate XML config files, for example as classpath resources "classpath:hibernate.cfg.xml,classpath:extension.cfg.xml".

Note: Can be omitted when all necessary properties and mapping resources are specified locally via this bean.

See Also:
Configuration.configure(java.net.URL)

setMappingResources

public void setMappingResources(java.lang.String[] mappingResources)
Set Hibernate mapping resources to be found in the class path, like "example.hbm.xml" or "mypackage/example.hbm.xml". Analogous to mapping entries in a Hibernate XML config file. Alternative to the more generic setMappingLocations method.

Can be used to add to mappings from a Hibernate XML config file, or to specify all mappings locally.

See Also:
setMappingLocations(org.springframework.core.io.Resource[]), Configuration.addResource(java.lang.String, java.lang.ClassLoader)

setMappingLocations

public void setMappingLocations(Resource[] mappingLocations)
Set locations of Hibernate mapping files, for example as classpath resource "classpath:example.hbm.xml". Supports any resource location via Spring's resource abstraction, for example relative paths like "WEB-INF/mappings/example.hbm.xml" when running in an application context.

Can be used to add to mappings from a Hibernate XML config file, or to specify all mappings locally.

See Also:
Configuration.addInputStream(java.io.InputStream)

setCacheableMappingLocations

public void setCacheableMappingLocations(Resource[] cacheableMappingLocations)
Set locations of cacheable Hibernate mapping files, for example as web app resource "/WEB-INF/mapping/example.hbm.xml". Supports any resource location via Spring's resource abstraction, as long as the resource can be resolved in the file system.

Can be used to add to mappings from a Hibernate XML config file, or to specify all mappings locally.

See Also:
Configuration.addCacheableFile(java.io.File)

setMappingJarLocations

public void setMappingJarLocations(Resource[] mappingJarLocations)
Set locations of jar files that contain Hibernate mapping resources, like "WEB-INF/lib/example.hbm.jar".

Can be used to add to mappings from a Hibernate XML config file, or to specify all mappings locally.

See Also:
Configuration.addJar(java.io.File)

setMappingDirectoryLocations

public void setMappingDirectoryLocations(Resource[] mappingDirectoryLocations)
Set locations of directories that contain Hibernate mapping resources, like "WEB-INF/mappings".

Can be used to add to mappings from a Hibernate XML config file, or to specify all mappings locally.

See Also:
Configuration.addDirectory(java.io.File)

setEntityInterceptor

public void setEntityInterceptor(org.hibernate.Interceptor entityInterceptor)
Set a Hibernate entity interceptor that allows to inspect and change property values before writing to and reading from the database. Will get applied to any new Session created by this factory.

See Also:
Configuration.setInterceptor(org.hibernate.Interceptor)

setNamingStrategy

public void setNamingStrategy(org.hibernate.cfg.NamingStrategy namingStrategy)
Set a Hibernate NamingStrategy for the SessionFactory, determining the physical column and table names given the info in the mapping document.

See Also:
Configuration.setNamingStrategy(org.hibernate.cfg.NamingStrategy)

setHibernateProperties

public void setHibernateProperties(java.util.Properties hibernateProperties)
Set Hibernate properties, such as "hibernate.dialect".

Note: Do not specify a transaction provider here when using Spring-driven transactions. It is also advisable to omit connection provider settings and use a Spring-set DataSource instead.

See Also:
setDataSource(javax.sql.DataSource)

getHibernateProperties

public java.util.Properties getHibernateProperties()
Return the Hibernate properties, if any. Mainly available for configuration through property paths that specify individual keys.


setAnnotatedClasses

public void setAnnotatedClasses(java.lang.Class<?>[] annotatedClasses)
Specify annotated entity classes to register with this Hibernate SessionFactory.

See Also:
org.hibernate.cfg.Configuration#addAnnotatedClass(Class)

setAnnotatedPackages

public void setAnnotatedPackages(java.lang.String[] annotatedPackages)
Specify the names of annotated packages, for which package-level annotation metadata will be read.

See Also:
org.hibernate.cfg.Configuration#addPackage(String)

setPackagesToScan

public void setPackagesToScan(java.lang.String... packagesToScan)
Specify packages to search for autodetection of your entity classes in the classpath. This is analogous to Spring's component-scan feature (ClassPathBeanDefinitionScanner).


setResourceLoader

public void setResourceLoader(ResourceLoader resourceLoader)
Description copied from interface: ResourceLoaderAware
Set the ResourceLoader that this object runs in.

This might be a ResourcePatternResolver, which can be checked through instanceof ResourcePatternResolver. See also the ResourcePatternUtils.getResourcePatternResolver method.

Invoked after population of normal bean properties but before an init callback like InitializingBean's afterPropertiesSet or a custom init-method. Invoked before ApplicationContextAware's setApplicationContext.

Specified by:
setResourceLoader in interface ResourceLoaderAware
Parameters:
resourceLoader - ResourceLoader object to be used by this object
See Also:
ResourcePatternResolver, ResourcePatternUtils.getResourcePatternResolver(org.springframework.core.io.ResourceLoader)

afterPropertiesSet

public void afterPropertiesSet()
                        throws java.io.IOException
Description copied from interface: InitializingBean
Invoked by a BeanFactory after it has set all bean properties supplied (and satisfied BeanFactoryAware and ApplicationContextAware).

This method allows the bean instance to perform initialization only possible when all bean properties have been set and to throw an exception in the event of misconfiguration.

Specified by:
afterPropertiesSet in interface InitializingBean
Throws:
java.io.IOException

buildSessionFactory

protected org.hibernate.SessionFactory buildSessionFactory(LocalSessionFactoryBuilder sfb)
Subclasses can override this method to perform custom initialization of the SessionFactory instance, creating it via the given Configuration object that got prepared by this LocalSessionFactoryBean.

The default implementation invokes LocalSessionFactoryBuilder's buildSessionFactory. A custom implementation could prepare the instance in a specific way (e.g. applying a custom ServiceRegistry) or use a custom SessionFactoryImpl subclass.

Parameters:
sfb - LocalSessionFactoryBuilder prepared by this LocalSessionFactoryBean
Returns:
the SessionFactory instance
See Also:
LocalSessionFactoryBuilder.buildSessionFactory()

getConfiguration

public final org.hibernate.cfg.Configuration getConfiguration()
Return the Hibernate Configuration object used to build the SessionFactory. Allows for access to configuration metadata stored there (rarely needed).

Throws:
java.lang.IllegalStateException - if the Configuration object has not been initialized yet

getObject

public org.hibernate.SessionFactory getObject()
Description copied from interface: FactoryBean
Return an instance (possibly shared or independent) of the object managed by this factory.

As with a BeanFactory, this allows support for both the Singleton and Prototype design pattern.

If this FactoryBean is not fully initialized yet at the time of the call (for example because it is involved in a circular reference), throw a corresponding FactoryBeanNotInitializedException.

As of Spring 2.0, FactoryBeans are allowed to return null objects. The factory will consider this as normal value to be used; it will not throw a FactoryBeanNotInitializedException in this case anymore. FactoryBean implementations are encouraged to throw FactoryBeanNotInitializedException themselves now, as appropriate.

Specified by:
getObject in interface FactoryBean<org.hibernate.SessionFactory>
Returns:
an instance of the bean (can be null)
See Also:
FactoryBeanNotInitializedException

getObjectType

public java.lang.Class<?> getObjectType()
Description copied from interface: FactoryBean
Return the type of object that this FactoryBean creates, or null if not known in advance.

This allows one to check for specific types of beans without instantiating objects, for example on autowiring.

In the case of implementations that are creating a singleton object, this method should try to avoid singleton creation as far as possible; it should rather estimate the type in advance. For prototypes, returning a meaningful type here is advisable too.

This method can be called before this FactoryBean has been fully initialized. It must not rely on state created during initialization; of course, it can still use such state if available.

NOTE: Autowiring will simply ignore FactoryBeans that return null here. Therefore it is highly recommended to implement this method properly, using the current state of the FactoryBean.

Specified by:
getObjectType in interface FactoryBean<org.hibernate.SessionFactory>
Returns:
the type of object that this FactoryBean creates, or null if not known at the time of the call
See Also:
ListableBeanFactory.getBeansOfType(java.lang.Class)

isSingleton

public boolean isSingleton()
Description copied from interface: FactoryBean
Is the object managed by this factory a singleton? That is, will FactoryBean.getObject() always return the same object (a reference that can be cached)?

NOTE: If a FactoryBean indicates to hold a singleton object, the object returned from getObject() might get cached by the owning BeanFactory. Hence, do not return true unless the FactoryBean always exposes the same reference.

The singleton status of the FactoryBean itself will generally be provided by the owning BeanFactory; usually, it has to be defined as singleton there.

NOTE: This method returning false does not necessarily indicate that returned objects are independent instances. An implementation of the extended SmartFactoryBean interface may explicitly indicate independent instances through its SmartFactoryBean.isPrototype() method. Plain FactoryBean implementations which do not implement this extended interface are simply assumed to always return independent instances if the isSingleton() implementation returns false.

Specified by:
isSingleton in interface FactoryBean<org.hibernate.SessionFactory>
Returns:
whether the exposed object is a singleton
See Also:
FactoryBean.getObject(), SmartFactoryBean.isPrototype()

destroy

public void destroy()
Description copied from interface: DisposableBean
Invoked by a BeanFactory on destruction of a singleton.

Specified by:
destroy in interface DisposableBean

Spring Framework