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Java Source Code / Java Documentation » J2EE » spring framework 2.0.6 » org.springframework.orm.jdo.support

Source Cross Reference Class Diagram Java Document (Java Doc)

org.springframework.web.filter .OncePerRequestFilter

org.springframework.orm.jdo.support .OpenPersistenceManagerInViewFilter

OpenPersistenceManagerInViewFilter

public class OpenPersistenceManagerInViewFilter extends OncePerRequestFilter (Code)

Servlet 2.3 Filter that binds a JDO PersistenceManager to the thread for the entire processing of the request. Intended for the "Open PersistenceManager in View" pattern, i.e. to allow for lazy loading in web views despite the original transactions already being completed.

This filter makes JDO PersistenceManagers available via the current thread, which will be autodetected by transaction managers. It is suitable for service layer transactions via org.springframework.orm.jdo.JdoTransactionManager or org.springframework.transaction.jta.JtaTransactionManager as well as for non-transactional read-only execution.

Looks up the PersistenceManagerFactory in Spring's root web application context. Supports a "persistenceManagerFactoryBeanName" filter init-param in web.xml; the default bean name is "persistenceManagerFactory". Looks up the PersistenceManagerFactory on each request, to avoid initialization order issues (when using ContextLoaderServlet, the root application context will get initialized after this filter).
author:
   Juergen Hoeller
since:
   1.1
See Also:   OpenPersistenceManagerInViewInterceptor
See Also:   org.springframework.orm.jdo.JdoInterceptor
See Also:   org.springframework.orm.jdo.JdoTransactionManager
See Also:   org.springframework.orm.jdo.PersistenceManagerFactoryUtils.getPersistenceManager
See Also:   org.springframework.transaction.support.TransactionSynchronizationManager

Field Summary
final public static String	DEFAULT_PERSISTENCE_MANAGER_FACTORY_BEAN_NAME

Method Summary
protected void	doFilterInternal(HttpServletRequest request, HttpServletResponse response, FilterChain filterChain)
protected String	getPersistenceManagerFactoryBeanName() Return the bean name of the PersistenceManagerFactory to fetch from Spring's root application context.
protected PersistenceManagerFactory	lookupPersistenceManagerFactory(HttpServletRequest request) Look up the PersistenceManagerFactory that this filter should use, taking the current HTTP request as argument.
protected PersistenceManagerFactory	lookupPersistenceManagerFactory() Look up the PersistenceManagerFactory that this filter should use.
public void	setPersistenceManagerFactoryBeanName(String persistenceManagerFactoryBeanName) Set the bean name of the PersistenceManagerFactory to fetch from Spring's root application context.

Field Detail

DEFAULT_PERSISTENCE_MANAGER_FACTORY_BEAN_NAME
final public static String DEFAULT_PERSISTENCE_MANAGER_FACTORY_BEAN_NAME(Code)

Method Detail

doFilterInternal
protected void doFilterInternal(HttpServletRequest request, HttpServletResponse response, FilterChain filterChain) throws ServletException, IOException(Code)

getPersistenceManagerFactoryBeanName
protected String getPersistenceManagerFactoryBeanName()(Code)
	Return the bean name of the PersistenceManagerFactory to fetch from Spring's root application context.

lookupPersistenceManagerFactory
protected PersistenceManagerFactory lookupPersistenceManagerFactory(HttpServletRequest request)(Code)
	Look up the PersistenceManagerFactory that this filter should use, taking the current HTTP request as argument. Default implementation delegates to the `lookupPersistenceManagerFactory` without arguments. the PersistenceManagerFactory to use See Also: OpenPersistenceManagerInViewFilter.lookupPersistenceManagerFactory()

lookupPersistenceManagerFactory
protected PersistenceManagerFactory lookupPersistenceManagerFactory()(Code)
	Look up the PersistenceManagerFactory that this filter should use. The default implementation looks for a bean with the specified name in Spring's root application context. the PersistenceManagerFactory to use See Also: OpenPersistenceManagerInViewFilter.getPersistenceManagerFactoryBeanName

setPersistenceManagerFactoryBeanName
public void setPersistenceManagerFactoryBeanName(String persistenceManagerFactoryBeanName)(Code)
	Set the bean name of the PersistenceManagerFactory to fetch from Spring's root application context. Default is "persistenceManagerFactory". See Also: OpenPersistenceManagerInViewFilter.DEFAULT_PERSISTENCE_MANAGER_FACTORY_BEAN_NAME

Fields inherited from org.springframework.web.filter.OncePerRequestFilter

final public static String ALREADY_FILTERED_SUFFIX(Code)(Java Doc)

Methods inherited from org.springframework.web.filter.OncePerRequestFilter

final public void doFilter(ServletRequest request, ServletResponse response, FilterChain filterChain) throws ServletException, IOException(Code)(Java Doc)
abstract protected void doFilterInternal(HttpServletRequest request, HttpServletResponse response, FilterChain filterChain) throws ServletException, IOException(Code)(Java Doc)
protected String getAlreadyFilteredAttributeName()(Code)(Java Doc)
protected boolean shouldNotFilter(HttpServletRequest request) throws ServletException(Code)(Java Doc)

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