org.springframework.remoting.support

Class RemoteInvocationBasedExporter

java.lang.Object

org.springframework.remoting.support.RemotingSupport

org.springframework.remoting.support.RemoteExporter

org.springframework.remoting.support.RemoteInvocationBasedExporter

All Implemented Interfaces:

Aware, BeanClassLoaderAware

Direct Known Subclasses:

JmsInvokerServiceExporter, RemoteInvocationSerializingExporter, RmiBasedExporter

public abstract class RemoteInvocationBasedExporter
extends RemoteExporter

Abstract base class for remote service exporters that are based on deserialization of RemoteInvocation objects.

Provides a "remoteInvocationExecutor" property, with a DefaultRemoteInvocationExecutor as default strategy.

Since:

1.1

Author:

Juergen Hoeller

See Also:

RemoteInvocationExecutor, DefaultRemoteInvocationExecutor

Field Summary

Fields

Modifier and Type	Field and Description
private RemoteInvocationExecutor	remoteInvocationExecutor

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

logger

Constructor Summary

Constructors

Constructor and Description
RemoteInvocationBasedExporter()

Method Summary

Modifier and Type	Method and Description
RemoteInvocationExecutor	getRemoteInvocationExecutor() Return the RemoteInvocationExecutor used by this exporter.
protected java.lang.Object	invoke(RemoteInvocation invocation, java.lang.Object targetObject) Apply the given remote invocation to the given target object.
protected RemoteInvocationResult	invokeAndCreateResult(RemoteInvocation invocation, java.lang.Object targetObject) Apply the given remote invocation to the given target object, wrapping the invocation result in a serializable RemoteInvocationResult object.
void	setRemoteInvocationExecutor(RemoteInvocationExecutor remoteInvocationExecutor) Set the RemoteInvocationExecutor to use for this exporter.

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

Field Detail

remoteInvocationExecutor

private RemoteInvocationExecutor remoteInvocationExecutor

Constructor Detail

RemoteInvocationBasedExporter

public RemoteInvocationBasedExporter()

Method Detail

setRemoteInvocationExecutor

public void setRemoteInvocationExecutor(RemoteInvocationExecutor remoteInvocationExecutor)

Set the RemoteInvocationExecutor to use for this exporter. Default is a DefaultRemoteInvocationExecutor.

A custom invocation executor can extract further context information from the invocation, for example user credentials.

getRemoteInvocationExecutor

public RemoteInvocationExecutor getRemoteInvocationExecutor()

Return the RemoteInvocationExecutor used by this exporter.

invoke

protected java.lang.Object invoke(RemoteInvocation invocation,
                                  java.lang.Object targetObject)
                           throws java.lang.NoSuchMethodException,
                                  java.lang.IllegalAccessException,
                                  java.lang.reflect.InvocationTargetException

Apply the given remote invocation to the given target object. The default implementation delegates to the RemoteInvocationExecutor.

Can be overridden in subclasses for custom invocation behavior, possibly for applying additional invocation parameters from a custom RemoteInvocation subclass. Note that it is preferable to use a custom RemoteInvocationExecutor which is a reusable strategy.

Parameters:

invocation - the remote invocation

targetObject - the target object to apply the invocation to

Returns:

the invocation result

Throws:

java.lang.NoSuchMethodException - if the method name could not be resolved

java.lang.IllegalAccessException - if the method could not be accessed

java.lang.reflect.InvocationTargetException - if the method invocation resulted in an exception

See Also:

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

invokeAndCreateResult

protected RemoteInvocationResult invokeAndCreateResult(RemoteInvocation invocation,
                                                       java.lang.Object targetObject)

Apply the given remote invocation to the given target object, wrapping the invocation result in a serializable RemoteInvocationResult object. The default implementation creates a plain RemoteInvocationResult.

Can be overridden in subclasses for custom invocation behavior, for example to return additional context information. Note that this is not covered by the RemoteInvocationExecutor strategy!

Parameters:

invocation - the remote invocation

targetObject - the target object to apply the invocation to

Returns:

the invocation result

See Also:

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