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Java Source Code / Java Documentation » J2EE » spring framework 2.0.6 » org.springframework.ejb.access 
Source Cross Reference  Class Diagram Java Document (Java Doc) 


org.springframework.ejb.access.AbstractSlsbInvokerInterceptor
   org.springframework.ejb.access.AbstractRemoteSlsbInvokerInterceptor
      org.springframework.ejb.access.SimpleRemoteSlsbInvokerInterceptor
         org.springframework.ejb.access.SimpleRemoteStatelessSessionProxyFactoryBean

SimpleRemoteStatelessSessionProxyFactoryBean
public class SimpleRemoteStatelessSessionProxyFactoryBean extends SimpleRemoteSlsbInvokerInterceptor implements FactoryBean,BeanClassLoaderAware(Code)

Convenient factory for remote SLSB proxies. If you want control over interceptor chaining, use an AOP ProxyFactoryBean with SimpleRemoteSlsbInvokerInterceptor rather than rely on this class.

See org.springframework.jndi.JndiObjectLocator for info on how to specify the JNDI location of the target EJB.

In a bean container, this class is normally best used as a singleton. However, if that bean container pre-instantiates singletons (as do the XML ApplicationContext variants) you may have a problem if the bean container is loaded before the EJB container loads the target EJB. That is because by default the JNDI lookup will be performed in the init method of this class and cached, but the EJB will not have been bound at the target location yet. The best solution is to set the lookupHomeOnStartup property to false, in which case the home will be fetched on first access to the EJB. (This flag is only true by default for backwards compatibility reasons).

This proxy factory is typically used with an RMI business interface, which serves as super-interface of the EJB component interface. Alternatively, this factory can also proxy a remote SLSB with a matching non-RMI business interface, i.e. an interface that mirrors the EJB business methods but does not declare RemoteExceptions. In the latter case, RemoteExceptions thrown by the EJB stub will automatically get converted to Spring's unchecked RemoteAccessException.


author:
   Rod Johnson
author:
   Colin Sampaleanu
author:
   Juergen Hoeller
since:
   09.05.2003
See Also:   org.springframework.remoting.RemoteAccessException
See Also:   AbstractSlsbInvokerInterceptor.setLookupHomeOnStartup
See Also:   AbstractSlsbInvokerInterceptor.setCacheHome
See Also:   AbstractRemoteSlsbInvokerInterceptor.setRefreshHomeOnConnectFailure




Method Summary
public  voidafterPropertiesSet()
    
public  ClassgetBusinessInterface()
     Return the business interface of the EJB we're proxying.
public  ObjectgetObject()
    
public  ClassgetObjectType()
    
public  booleanisSingleton()
    
public  voidsetBeanClassLoader(ClassLoader classLoader)
    
public  voidsetBusinessInterface(Class businessInterface)
     Set the business interface of the EJB we're proxying. This will normally be a super-interface of the EJB remote component interface. Using a business methods interface is a best practice when implementing EJBs.

You can also specify a matching non-RMI business interface, i.e.




Method Detail
afterPropertiesSet
public void afterPropertiesSet() throws NamingException(Code)



getBusinessInterface
public Class getBusinessInterface()(Code)
Return the business interface of the EJB we're proxying.



getObject
public Object getObject()(Code)



getObjectType
public Class getObjectType()(Code)



isSingleton
public boolean isSingleton()(Code)



setBeanClassLoader
public void setBeanClassLoader(ClassLoader classLoader)(Code)



setBusinessInterface
public void setBusinessInterface(Class businessInterface)(Code)
Set the business interface of the EJB we're proxying. This will normally be a super-interface of the EJB remote component interface. Using a business methods interface is a best practice when implementing EJBs.

You can also specify a matching non-RMI business interface, i.e. an interface that mirrors the EJB business methods but does not declare RemoteExceptions. In this case, RemoteExceptions thrown by the EJB stub will automatically get converted to Spring's generic RemoteAccessException.
Parameters:
  businessInterface - the business interface of the EJB




Methods inherited from org.springframework.ejb.access.SimpleRemoteSlsbInvokerInterceptor
protected Object doInvoke(MethodInvocation invocation) throws Throwable(Code)(Java Doc)
protected EJBObject getSessionBeanInstance() throws NamingException, InvocationTargetException(Code)(Java Doc)
protected void releaseSessionBeanInstance(EJBObject ejb)(Code)(Java Doc)

Methods inherited from org.springframework.ejb.access.AbstractRemoteSlsbInvokerInterceptor
abstract protected Object doInvoke(MethodInvocation invocation) throws Throwable(Code)(Java Doc)
public Object invoke(MethodInvocation invocation) throws Throwable(Code)(Java Doc)
protected boolean isConnectFailure(RemoteException ex)(Code)(Java Doc)
protected boolean isHomeRefreshable()(Code)(Java Doc)
protected Object lookup() throws NamingException(Code)(Java Doc)
protected EJBObject newSessionBeanInstance() throws NamingException, InvocationTargetException(Code)(Java Doc)
protected Object refreshAndRetry(MethodInvocation invocation) throws Throwable(Code)(Java Doc)
protected void removeSessionBeanInstance(EJBObject ejb)(Code)(Java Doc)
public void setHomeInterface(Class homeInterface)(Code)(Java Doc)
public void setRefreshHomeOnConnectFailure(boolean refreshHomeOnConnectFailure)(Code)(Java Doc)

Methods inherited from org.springframework.ejb.access.AbstractSlsbInvokerInterceptor
public void afterPropertiesSet() throws NamingException(Code)(Java Doc)
protected Object create() throws NamingException, InvocationTargetException(Code)(Java Doc)
protected Method getCreateMethod(Object home) throws EjbAccessException(Code)(Java Doc)
protected Object getHome() throws NamingException(Code)(Java Doc)
protected boolean isHomeRefreshable()(Code)(Java Doc)
protected void refreshHome() throws NamingException(Code)(Java Doc)
public void setCacheHome(boolean cacheHome)(Code)(Java Doc)
public void setLookupHomeOnStartup(boolean lookupHomeOnStartup)(Code)(Java Doc)

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