org.omg.CORBA.portable

Interface InvokeHandler

    • Method Detail

      • _invoke

        OutputStream _invoke(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 - The InputStream containing the marshalled arguments.
        handler - The ResponseHandler 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.

Document created the 11/06/2005, last modified the 04/03/2020
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