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

      `logger`

  - ### Constructor Summary

    Constructors
    Constructor and Description
    `RemoteInvocationBasedExporter()`

  - ### Method Summary

    Methods
    Modifier and Type | Method and Description
    --- | ---
    `RemoteInvocationExecutor` | `getRemoteInvocationExecutor()` Return the RemoteInvocationExecutor used by this exporter.
    `protected Object` | `invoke(RemoteInvocation invocation, Object targetObject)` Apply the given remote invocation to the given target object.
    `protected RemoteInvocationResult` | `invokeAndCreateResult(RemoteInvocation invocation, 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`

- - ### 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 Object invoke(RemoteInvocation invocation,
                      Object targetObject)
                           throws NoSuchMethodException,
                                  IllegalAccessException,
                                  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:
        `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)`

    - #### invokeAndCreateResult

          protected RemoteInvocationResult invokeAndCreateResult(RemoteInvocation invocation,
                                                     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)`