java.lang.Object
- org.springframework.remoting.support.RemotingSupport
- - org.springframework.remoting.support.RemoteExporter
  - - org.springframework.remoting.support.RemoteInvocationBasedExporter
    - - org.springframework.jms.remoting.JmsInvokerServiceExporter

All Implemented Interfaces:
Aware, BeanClassLoaderAware, InitializingBean, SessionAwareMessageListener<Message>
```
public class JmsInvokerServiceExporter
extends RemoteInvocationBasedExporter
implements SessionAwareMessageListener<Message>, InitializingBean
```
JMS message listener that exports the specified service bean as a JMS service endpoint, accessible via a JMS invoker proxy.
Note that this class implements Spring's SessionAwareMessageListener interface, since it requires access to the active JMS Session. Hence, this class can only be used with message listener containers which support the SessionAwareMessageListener interface (e.g. Spring's DefaultMessageListenerContainer).
Thanks to James Strachan for the original prototype that this JMS invoker mechanism was inspired by!
Since:
2.0
Author:
Juergen Hoeller, James Strachan
See Also:
JmsInvokerClientInterceptor, JmsInvokerProxyFactoryBean

Field Summary
- Fields inherited from class org.springframework.remoting.support.RemotingSupport
  logger

Constructor Summary
Constructors
Constructor Description
JmsInvokerServiceExporter()

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`afterPropertiesSet()`	Invoked by the containing `BeanFactory` after it has set all bean properties and satisfied `BeanFactoryAware`, `ApplicationContextAware` etc.
`protected Message`	`createResponseMessage(Message request, Session session, RemoteInvocationResult result)`	Create the invocation result response message.
`protected RemoteInvocation`	`onInvalidRequest(Message requestMessage)`	Callback that is invoked by `readRemoteInvocation(javax.jms.Message)` when it encounters an invalid request message.
`void`	`onMessage(Message requestMessage, Session session)`	Callback for processing a received JMS message.
`protected RemoteInvocation`	`readRemoteInvocation(Message requestMessage)`	Read a RemoteInvocation from the given JMS message.
`void`	`setIgnoreInvalidRequests(boolean ignoreInvalidRequests)`	Set whether invalidly formatted messages should be discarded.
`void`	`setMessageConverter(MessageConverter messageConverter)`	Specify the MessageConverter to use for turning request messages into `RemoteInvocation` objects, as well as `RemoteInvocationResult` objects into response messages.
`protected void`	`writeRemoteInvocationResult(Message requestMessage, Session session, RemoteInvocationResult result)`	Send the given RemoteInvocationResult as a JMS message to the originator.

Methods inherited from class org.springframework.remoting.support.RemoteInvocationBasedExporter
getRemoteInvocationExecutor, invoke, 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
  - JmsInvokerServiceExporter
```
public JmsInvokerServiceExporter()
```
- Method Detail
  - setMessageConverter
```
public void setMessageConverter(MessageConverter messageConverter)
```
    Specify the MessageConverter to use for turning request messages into RemoteInvocation objects, as well as RemoteInvocationResult objects into response messages.
    Default is a SimpleMessageConverter, using a standard JMS ObjectMessage for each invocation / invocation result object.
    Custom implementations may generally adapt Serializables into special kinds of messages, or might be specifically tailored for translating RemoteInvocation(Result)s into specific kinds of messages.
  - setIgnoreInvalidRequests
```
public void setIgnoreInvalidRequests(boolean ignoreInvalidRequests)
```
    Set whether invalidly formatted messages should be discarded. Default is "true".
    Switch this flag to "false" to throw an exception back to the listener container. This will typically lead to redelivery of the message, which is usually undesirable - since the message content will be the same (that is, still invalid).
  - afterPropertiesSet
```
public void afterPropertiesSet()
```
    Description copied from interface: InitializingBean
    Invoked by the containing BeanFactory after it has set all bean properties and satisfied BeanFactoryAware, ApplicationContextAware etc.
    This method allows the bean instance to perform validation of its overall configuration and final initialization when all bean properties have been set.
    Specified by:
    afterPropertiesSet in interface InitializingBean
  - onMessage
```
public void onMessage(Message requestMessage,
                      Session session)
               throws JMSException
```
    Description copied from interface: SessionAwareMessageListener
    Callback for processing a received JMS message.
    Implementors are supposed to process the given Message, typically sending reply messages through the given Session.
    Specified by:
    onMessage in interface SessionAwareMessageListener<Message>
    Parameters:
    requestMessage - the received JMS message (never null)
    session - the underlying JMS Session (never null)
    Throws:
    JMSException - if thrown by JMS methods
  - readRemoteInvocation
```
protected RemoteInvocation readRemoteInvocation(Message requestMessage)
                                         throws JMSException
```
    Read a RemoteInvocation from the given JMS message.
    Parameters:
    requestMessage - current request message
    Returns:
    the RemoteInvocation object (or null in case of an invalid message that will simply be ignored)
    Throws:
    JMSException - in case of message access failure
  - writeRemoteInvocationResult
```
protected void writeRemoteInvocationResult(Message requestMessage,
                                           Session session,
                                           RemoteInvocationResult result)
                                    throws JMSException
```
    Send the given RemoteInvocationResult as a JMS message to the originator.
    Parameters:
    requestMessage - current request message
    session - the JMS Session to use
    result - the RemoteInvocationResult object
    Throws:
    JMSException - if thrown by trying to send the message
  - createResponseMessage
```
protected Message createResponseMessage(Message request,
                                        Session session,
                                        RemoteInvocationResult result)
                                 throws JMSException
```
    Create the invocation result response message.
    The default implementation creates a JMS ObjectMessage for the given RemoteInvocationResult object. It sets the response's correlation id to the request message's correlation id, if any; otherwise to the request message id.
    Parameters:
    request - the original request message
    session - the JMS session to use
    result - the invocation result
    Returns:
    the message response to send
    Throws:
    JMSException - if creating the messsage failed
  - onInvalidRequest
```
protected RemoteInvocation onInvalidRequest(Message requestMessage)
                                     throws JMSException
```
    Callback that is invoked by readRemoteInvocation(javax.jms.Message) when it encounters an invalid request message.
    The default implementation either discards the invalid message or throws a MessageFormatException - according to the "ignoreInvalidRequests" flag, which is set to "true" (that is, discard invalid messages) by default.
    Parameters:
    requestMessage - the invalid request message
    Returns:
    the RemoteInvocation to expose for the invalid request (typically null in case of an invalid message that will simply be ignored)
    Throws:
    JMSException - in case of the invalid request supposed to lead to an exception (instead of ignoring it)
    See Also:
    readRemoteInvocation(javax.jms.Message), setIgnoreInvalidRequests(boolean)

Class JmsInvokerServiceExporter

Field Summary

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

Constructor Summary

Method Summary

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

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

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

Methods inherited from class java.lang.Object

Constructor Detail

JmsInvokerServiceExporter

Method Detail

setMessageConverter

setIgnoreInvalidRequests

afterPropertiesSet

onMessage

readRemoteInvocation

writeRemoteInvocationResult

createResponseMessage

onInvalidRequest