001    /* ServantActivatorOperations.java --
002       Copyright (C) 2005 Free Software Foundation, Inc.
003    
004    This file is part of GNU Classpath.
005    
006    GNU Classpath is free software; you can redistribute it and/or modify
007    it under the terms of the GNU General Public License as published by
008    the Free Software Foundation; either version 2, or (at your option)
009    any later version.
010    
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013    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
014    General Public License for more details.
015    
016    You should have received a copy of the GNU General Public License
017    along with GNU Classpath; see the file COPYING.  If not, write to the
018    Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
019    02110-1301 USA.
020    
021    Linking this library statically or dynamically with other modules is
022    making a combined work based on this library.  Thus, the terms and
023    conditions of the GNU General Public License cover the whole
024    combination.
025    
026    As a special exception, the copyright holders of this library give you
027    permission to link this library with independent modules to produce an
028    executable, regardless of the license terms of these independent
029    modules, and to copy and distribute the resulting executable under
030    terms of your choice, provided that you also meet, for each linked
031    independent module, the terms and conditions of the license of that
032    module.  An independent module is a module which is not derived from
033    or based on this library.  If you modify this library, you may extend
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036    exception statement from your version. */
037    
038    
039    package org.omg.PortableServer;
040    
041    
042    /**
043     * Defines the operations, applicable to the {@link ServantActivator}.
044     *
045     * @author Audrius Meskauskas, Lithuania (AudriusA@Bioinformatics.org)
046     */
047    public interface ServantActivatorOperations
048      extends ServantManagerOperations
049    {
050      /**
051       * This method is invoked whenever a servant for an object is deactivated,
052       * assuming the POA has the USE_SERVANT_MANAGER and RETAIN policies.
053       *
054       * @param Object_Id the Id of the object being deactivated.
055       *
056       * @param poa the POA in those scope the object was active.
057       *
058       * @param servant the servant, serving the object being deactivated.
059       *
060       * @param cleanup_in_progress if true, this method was called from due
061       * deactivation or destruction operation. False indicates that the method
062       * was called due other reasons.
063       *
064       * @param remaining_activations if true, at the invocation moment the
065       * passed servant is also associated with other objects in the active
066       * object map of the given POA.
067       */
068      void etherealize(byte[] Object_Id, POA poa, Servant servant,
069                       boolean cleanup_in_progress, boolean remaining_activations
070                      );
071    
072      /**
073       * This method is invoked whenever the POA receives a request for an
074       * object that is not currently active, assuming the POA has the
075       * USE_SERVANT_MANAGER and RETAIN policies. The user-supplied servant
076       * manager is responsible for locating or creating an appropriate servant
077       * that corresponds to the ObjectId value. The subsequent requests with
078       * the same ObjectId value will be delivered directly to that servant
079       * without invoking the servant manager.
080       *
081       * @param Object_Id the ObjectId value associated with the incoming request.
082       * @param poa the POA in which the object is being activated.
083       *
084       * @return a servant that will be used to process the incoming request.
085       *
086       * @throws ForwardRequest if the activator decides to forward the request
087       * to another object. The exception contains the object that should
088       * handle this request. This object is usually remote, but can also
089       * be local. The throws exception will forward all subsequent requests
090       * till the new activation.
091       */
092      Servant incarnate(byte[] Object_Id, POA poa)
093                 throws ForwardRequest;
094    }