Package org.omg.CORBA.portable
Interface InvokeHandler
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public interface InvokeHandler
This interface provides a dispatching mechanism for an incoming call. It is invoked by the ORB to dispatch a request to a servant.
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Method Summary
All Methods Instance Methods Abstract Methods Modifier and Type Method Description OutputStream
_invoke(java.lang.String method, InputStream input, ResponseHandler handler)
Invoked by the ORB to dispatch a request to the servant.
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Method Detail
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_invoke
OutputStream _invoke(java.lang.String method, InputStream input, ResponseHandler handler) throws SystemException
Invoked by the ORB to dispatch a request to the servant. ORB passes the method name, an InputStream containing the marshalled arguments, and a ResponseHandler which the servant uses to construct a proper reply. Only CORBA SystemException may be thrown by this method. The method must return an OutputStream created by the ResponseHandler which contains the marshalled reply. A servant must not retain a reference to the ResponseHandler beyond the lifetime of a method invocation. Servant behaviour is defined as follows:1. Determine correct method, and unmarshal parameters from InputStream.
2. Invoke method implementation.
3. If no user exception, create a normal reply using ResponseHandler.
4. If user exception occurred, create exception reply using ResponseHandler.
5. Marshal reply into OutputStream returned by ResponseHandler.
6. Return OutputStream to ORB.
- Parameters:
method
- The method name.input
- TheInputStream
containing the marshalled arguments.handler
- TheResponseHandler
which the servant uses to construct a proper reply- Returns:
- The
OutputStream
created by the ResponseHandler which contains the marshalled reply - Throws:
SystemException
- is thrown when invocation fails due to a CORBA system exception.
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