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[/] [openrisc/] [trunk/] [gnu-dev/] [or1k-gcc/] [libjava/] [classpath/] [org/] [omg/] [PortableServer/] [_ServantLocatorStub.java] - Blame information for rev 775

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1 775 jeremybenn
/* _ServantLocatorStub.java --
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   Copyright (C) 2005, 2006 Free Software Foundation, Inc.
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This file is part of GNU Classpath.
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GNU Classpath is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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GNU Classpath is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GNU Classpath; see the file COPYING.  If not, write to the
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Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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02110-1301 USA.
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Linking this library statically or dynamically with other modules is
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making a combined work based on this library.  Thus, the terms and
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conditions of the GNU General Public License cover the whole
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combination.
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As a special exception, the copyright holders of this library give you
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permission to link this library with independent modules to produce an
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executable, regardless of the license terms of these independent
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modules, and to copy and distribute the resulting executable under
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terms of your choice, provided that you also meet, for each linked
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independent module, the terms and conditions of the license of that
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module.  An independent module is a module which is not derived from
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or based on this library.  If you modify this library, you may extend
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this exception to your version of the library, but you are not
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obligated to do so.  If you do not wish to do so, delete this
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exception statement from your version. */
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package org.omg.PortableServer;
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import org.omg.CORBA.portable.ObjectImpl;
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import org.omg.PortableServer.ServantLocatorPackage.CookieHolder;
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import java.io.Serializable;
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/**
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 * <p>The ServantLocator stub is an optional base for the
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 * servant locators. This stub cannot accept remote invocations, as
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 * methods in {@link ServantLocatorOperations} take POA as one of parameters.
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 * Both JDK 1.5 API and OMG specifies that POA is a local object that must not
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 * be transferred to the remote invocation target.
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 * </p><p>
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 * You do not need to derive your servant locator from this stub,
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 * it is enough to implement the {@link ServantLocator} interface.
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 * But you may choose to do this if you need its functional
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 * {@link #_ids()} method or want to keep default behavior during per-
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 * or post- invokcations.
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 * </p>
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 * @author Audrius Meskauskas, Lithuania (AudriusA@Bioinformatics.org)
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 */
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public class _ServantLocatorStub
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  extends ObjectImpl
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  implements ServantLocator, Serializable
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{
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  /**
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   * Use serialVersionUID (v1.4) for interoperability.
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   */
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  private static final long serialVersionUID = -2374963516905770111L;
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  /**
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   * This the purpose of this field is undocumented up till 1.5 java API
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   * inclusive.
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   */
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  @SuppressWarnings("unchecked") // Needed for API compatibility
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  public static final Class _opsClass = ServantLocatorOperations.class;
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  /**
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   * The package private string, used as a parameter for
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   * the throws NullPointerExceptions in both servant locator and activator
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   * stubs.
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   */
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  static final String OVERRIDE = "Override this method to get functionality.";
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  /**
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   * Return the array of repository ids for this object, stating that it is
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   * both Servant locator and Servant manager.
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   *
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   * @return { "IDL:omg.org/PortableServer/ServantLocator:1.0",
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   *           "IDL:omg.org/PortableServer/ServantManager:1.0" }, always.
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   */
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  public String[] _ids()
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  {
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    return new String[]
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           {
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             "IDL:omg.org/PortableServer/ServantLocator:1.0",
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             "IDL:omg.org/PortableServer/ServantManager:1.0"
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           };
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  }
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  /**
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   * It is your responsibility to take the preinvoke actions, if any,
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   * and also supply an appropriate servant for the current invocation.
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   *
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   * The default method instructs POA that the servant cannot be
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   * provided by locator. The OBJ_ADAPTER exception will be
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   * thrown by POA, unless it uses the available default servant for all
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   * invocations.
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   *
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   * @specnote in GNU Classpath, returning null means that the
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   * locator does not supply the servant.
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   *
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   * @see ServantLocatorOperations#preinvoke
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   */
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  public Servant preinvoke(byte[] Object_id, POA poa, String method,
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                           CookieHolder cookie
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                          )
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                    throws ForwardRequest
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  {
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    return null;
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  }
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  /**
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   * It is your responsibility to take the postinvoke actions, if any,
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   * by overriding this method. The default method does nothing.
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   *
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   * @see ServantLocatorOperations#postinvoke
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   */
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  public void postinvoke(byte[] Object_id, POA poa, String method,
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                         Object cookie, Servant servant
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                        )
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  {
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  }
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}

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