/*
 * @(#)Delegate.java	1.10 03/01/27
 *
 * Copyright 2003 Sun Microsystems, Inc. All rights reserved.
 * SUN PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
 */
package org.omg.PortableServer.portable;

import org.omg.PortableServer.Servant;
import org.omg.PortableServer.POA;

/**
 * The portability package contains interfaces and classes 
 * that are designed for and intended to be used by ORB 
 * implementor. It exposes the publicly defined APIs that 
 * are used to connect stubs and skeletons to the ORB.
 * The Delegate interface provides the ORB vendor specific 
 * implementation of PortableServer::Servant.
 * Conformant to spec CORBA V2.3.1, ptc/00-01-08.pdf
 */
public interface Delegate {
/**
 * Convenience method that returns the instance of the ORB
 * currently associated with the Servant.
 * @param Self the servant.
 * @return ORB associated with the Servant.
 */
    org.omg.CORBA.ORB orb(Servant Self);

/**
 * This allows the servant to obtain the object reference for
 * the target CORBA Object it is incarnating for that request.
 * @param Self the servant.
 * @return Object reference associated with the request.
 */
    org.omg.CORBA.Object this_object(Servant Self);

/**
 * The method _poa() is equivalent to
 * calling PortableServer::Current:get_POA.
 * @param Self the servant.
 * @return POA associated with the servant.
 */
    POA poa(Servant Self);

/**
 * The method _object_id() is equivalent
 * to calling PortableServer::Current::get_object_id.
 * @param Self the servant.
 * @return ObjectId associated with this servant.
 */
    byte[] object_id(Servant Self);

/**
 * The default behavior of this function is to return the
 * root POA from the ORB instance associated with the servant.
 * @param Self the servant.
 * @return POA associated with the servant class.
 */
    POA default_POA(Servant Self);

/**
 * This method checks to see if the specified repid is present
 * on the list returned by _all_interfaces() or is the
 * repository id for the generic CORBA Object.
 * @param Self the servant.
 * @param Repository_Id the repository_id to be checked in the
 *            repository list or against the id of generic CORBA
 *            object.
 * @return boolean indicating whether the specified repid is
 *         in the list or is same as that got generic CORBA
 *         object.
 */
    boolean is_a(Servant Self, String Repository_Id);

/**
 * This operation is used to check for the existence of the
 * Object.
 * @param Self the servant.
 * @return boolean true to indicate that object does not exist,
 *                 and false otherwise.
 */
    boolean non_existent(Servant Self);
    //Simon And Ken Will Ask About Editorial Changes
    //In Idl To Java For The Following Signature.

/**
 * This operation returns an object in the Interface Repository
 * which provides type information that may be useful to a program.
 * @param self the servant.
 * @return type information corresponding to the object.
 */
    // The get_interface() method has been replaced by get_interface_def()
    //org.omg.CORBA.Object get_interface(Servant Self);

    org.omg.CORBA.Object get_interface_def(Servant self);
}