Class LocalPersistenceManagerFactoryBean

  extended by org.springframework.orm.jdo.LocalPersistenceManagerFactoryBean
All Implemented Interfaces:
DisposableBean, FactoryBean, InitializingBean

public class LocalPersistenceManagerFactoryBean
extends Object
implements FactoryBean, InitializingBean, DisposableBean

FactoryBean that creates a local JDO EntityManagerFactory instance. Behaves like a PersistenceManagerFactory instance when used as bean reference, e.g. for JdoTemplate's "persistenceManagerFactory" property. Note that switching to a JndiObjectFactoryBean or a bean-style PersistenceManagerFactory instance is just a matter of configuration!

The typical usage will be to register this as singleton factory (for a certain underlying data source) in an application context, and give bean references to application services that need it.

Configuration settings can either be read from a properties file, specified as "configLocation", or completely via this class. Properties specified as "jdoProperties" here will override any settings in a file.

This PersistenceManager handling strategy is most appropriate for applications that solely use JDO for data access. In this case, JdoTransactionManager is much more convenient than setting up your JDO provider for JTA transactions (which might involve JCA).

NOTE: This class is compatible with both JDO 1.0 and JDO 2.0, as far as possible. It uses reflection to adapt to the actual API present on the class path (concretely: for the getPersistenceManagerFactory method with either a Properties or a Map argument). Make sure that the JDO API jar on your class path matches the one that your JDO provider has been compiled against!

As alternative to the properties-driven approach that this FactoryBean offers (which is analogous to using the standard JDOHelper class with a Properties object that is populated with standard JDO properties), you can set up an instance of your PersistenceManagerFactory implementation class directly.

Like a DataSource, a PersistenceManagerFactory is encouraged to support bean-style configuration, which makes it very easy to set up as Spring-managed bean. The implementation class becomes the bean class; the remaining properties are applied as bean properties (starting with lower-case characters, in contrast to the corresponding JDO properties).

For example, in case of JPOX:

 <bean id="persistenceManagerFactory" class="org.jpox.PersistenceManagerFactoryImpl" destroy-method="close">
   <property name="connectionFactory" ref="dataSource"/>
   <property name="nontransactionalRead" value="true"/>

Note that such direct setup of a PersistenceManagerFactory implementation is the only way to pass an external connection factory (i.e. a JDBC DataSource) into a JDO PersistenceManagerFactory. With the standard properties-driven approach, you can only use an internal connection pool or a JNDI DataSource.

The close() method is standardized as of JDO 1.0.1; don't forget to specify it as "destroy-method" for any PersistenceManagerFactory instance. Note that this FactoryBean will automatically invoke close for the PersistenceManagerFactory it creates, without any special configuration.

Juergen Hoeller
See Also:
JdoAccessor.setPersistenceManagerFactory(javax.jdo.PersistenceManagerFactory), JdoTransactionManager.setPersistenceManagerFactory(javax.jdo.PersistenceManagerFactory), JndiObjectFactoryBean, JDOHelper.getPersistenceManagerFactory(java.util.Map), PersistenceManagerFactory.setConnectionFactory(java.lang.Object), PersistenceManagerFactory.close()

Field Summary
protected  Log logger
Constructor Summary
Method Summary
 void afterPropertiesSet()
          Initialize the PersistenceManagerFactory for the given location.
 void destroy()
          Close the PersistenceManagerFactory on bean factory shutdown.
 Object getObject()
          Return the singleton PersistenceManagerFactory.
 Class getObjectType()
          Return the type of object that this FactoryBean creates, or null if not known in advance.
 boolean isSingleton()
          Is the bean managed by this factory a singleton or a prototype?
protected  javax.jdo.PersistenceManagerFactory newPersistenceManagerFactory(Properties props)
          Subclasses can override this to perform custom initialization of the PersistenceManagerFactory instance, creating it via the given Properties that got prepared by this LocalPersistenceManagerFactoryBean.
 void setConfigLocation(Resource configLocation)
          Set the location of the JDO properties config file, for example as classpath resource "".
 void setJdoProperties(Properties jdoProperties)
          Set JDO properties, such as"javax.jdo.PersistenceManagerFactoryClass".
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail


protected final Log logger
Constructor Detail


public LocalPersistenceManagerFactoryBean()
Method Detail


public void setConfigLocation(Resource configLocation)
Set the location of the JDO properties config file, for example as classpath resource "".

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


public void setJdoProperties(Properties jdoProperties)
Set JDO properties, such as"javax.jdo.PersistenceManagerFactoryClass".

Can be used to override values in a JDO properties config file, or to specify all necessary properties locally.


public void afterPropertiesSet()
                        throws IllegalArgumentException,
Initialize the PersistenceManagerFactory for the given location.

Specified by:
afterPropertiesSet in interface InitializingBean
IllegalArgumentException - in case of illegal property values
IOException - if the properties could not be loaded from the given location
javax.jdo.JDOException - in case of JDO initialization errors


protected javax.jdo.PersistenceManagerFactory newPersistenceManagerFactory(Properties props)
Subclasses can override this to perform custom initialization of the PersistenceManagerFactory instance, creating it via the given Properties that got prepared by this LocalPersistenceManagerFactoryBean.

The default implementation invokes JDOHelper's getPersistenceManagerFactory method. A custom implementation could prepare the instance in a specific way, or use a custom PersistenceManagerFactory implementation.

Implemented to work with either the JDO 1.0 getPersistenceManagerFactory(java.util.Properties) method or the JDO 2.0 getPersistenceManagerFactory(java.util.Map) method, detected through reflection.

props - the merged Properties prepared by this LocalPersistenceManagerFactoryBean
the PersistenceManagerFactory instance
See Also:
javax.jdo.JDOHelper#getPersistenceManagerFactory(java.util.Properties), JDOHelper.getPersistenceManagerFactory(java.util.Map)


public Object getObject()
Return the singleton PersistenceManagerFactory.

Specified by:
getObject in interface FactoryBean
an instance of the bean (should not be null; a null value will be considered as an indication of incomplete initialization)
See Also:


public 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 to check for specific types of beans without instantiating objects, for example on autowiring.

For a singleton, this 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
the type of object that this FactoryBean creates, or null if not known at the time of the call
See Also:


public boolean isSingleton()
Description copied from interface: FactoryBean
Is the bean managed by this factory a singleton or a prototype? That is, will 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.

Specified by:
isSingleton in interface FactoryBean
if this bean is a singleton
See Also:


public void destroy()
Close the PersistenceManagerFactory on bean factory shutdown.

Specified by:
destroy in interface DisposableBean

Copyright (c) 2002-2007 The Spring Framework Project.