org.springframework.remoting.rmi
Class RmiBasedExporter

java.lang.Object
  org.springframework.remoting.support.RemotingSupport
      org.springframework.remoting.support.RemoteExporter
          org.springframework.remoting.support.RemoteInvocationBasedExporter
              org.springframework.remoting.rmi.RmiBasedExporter

All Implemented Interfaces:

Aware, BeanClassLoaderAware

Direct Known Subclasses:

JndiRmiServiceExporter, RmiServiceExporter

public abstract class RmiBasedExporter
extends RemoteInvocationBasedExporter

Convenient superclass for RMI-based remote exporters. Provides a facility to automatically wrap a given plain Java service object with an RmiInvocationWrapper, exposing the RmiInvocationHandler remote interface.

Using the RMI invoker mechanism, RMI communication operates at the RmiInvocationHandler level, sharing a common invoker stub for any number of services. Service interfaces are not required to extend java.rmi.Remote or declare java.rmi.RemoteException on all service methods. However, in and out parameters still have to be serializable.

Since:

1.2.5

Author:

Juergen Hoeller

See Also:

RmiServiceExporter, JndiRmiServiceExporter

Field Summary

Fields inherited from class org.springframework.remoting.support.RemotingSupport

logger

Constructor Summary

RmiBasedExporter()

Method Summary

protected Remote	getObjectToExport() Determine the object to export: either the service object itself or a RmiInvocationWrapper in case of a non-RMI service object.
protected Object	invoke(RemoteInvocation invocation, Object targetObject) Redefined here to be visible to RmiInvocationWrapper.

Methods inherited from class org.springframework.remoting.support.RemoteInvocationBasedExporter

getRemoteInvocationExecutor, invokeAndCreateResult, setRemoteInvocationExecutor

Methods inherited from class org.springframework.remoting.support.RemoteExporter

checkService, checkServiceInterface, getExporterName, getProxyForService, getService, getServiceInterface, setInterceptors, setRegisterTraceInterceptor, setService, setServiceInterface

Methods inherited from class org.springframework.remoting.support.RemotingSupport

getBeanClassLoader, overrideThreadContextClassLoader, resetThreadContextClassLoader, setBeanClassLoader

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

RmiBasedExporter

public RmiBasedExporter()

Method Detail

getObjectToExport

protected Remote getObjectToExport()

Determine the object to export: either the service object itself or a RmiInvocationWrapper in case of a non-RMI service object.

Returns:

the RMI object to export

See Also:

RemoteExporter.setService(java.lang.Object), RemoteExporter.setServiceInterface(java.lang.Class)

invoke

protected Object invoke(RemoteInvocation invocation,
                        Object targetObject)
                 throws NoSuchMethodException,
                        IllegalAccessException,
                        InvocationTargetException

Redefined here to be visible to RmiInvocationWrapper. Simply delegates to the corresponding superclass method.

Overrides:

invoke in class RemoteInvocationBasedExporter

Parameters:

invocation - the remote invocation

targetObject - the target object to apply the invocation to

Returns:

the invocation result

Throws:

NoSuchMethodException - if the method name could not be resolved

IllegalAccessException - if the method could not be accessed

InvocationTargetException - if the method invocation resulted in an exception

See Also:

RemoteInvocationExecutor.invoke(org.springframework.remoting.support.RemoteInvocation, java.lang.Object)