mirror of git://gcc.gnu.org/git/gcc.git
365 lines
10 KiB
Java
365 lines
10 KiB
Java
/* LocalObject.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.CORBA;
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import org.omg.CORBA.BAD_PARAM;
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import org.omg.CORBA.Context;
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import org.omg.CORBA.ContextList;
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import org.omg.CORBA.DomainManager;
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import org.omg.CORBA.ExceptionList;
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import org.omg.CORBA.NO_IMPLEMENT;
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import org.omg.CORBA.NVList;
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import org.omg.CORBA.NamedValue;
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import org.omg.CORBA.Policy;
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import org.omg.CORBA.Request;
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import org.omg.CORBA.SetOverrideType;
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import org.omg.CORBA.portable.ApplicationException;
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import org.omg.CORBA.portable.InputStream;
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import org.omg.CORBA.portable.OutputStream;
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import org.omg.CORBA.portable.RemarshalException;
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import org.omg.CORBA.portable.ServantObject;
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import javax.rmi.CORBA.Util;
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/**
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* An object, formally implementing the CORBA {@link Object}, but actually
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* handling all invocations locally.
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* Various calls to the remote object specific methods throw the
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* {@link NO_IMPLEMENT}. The explaining message for this exception is
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* specified in java API as <code>"This is a locally constrained object."</code>.
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* It is not possible to get a stringified reference of the local object, or
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* invoke a method using DII (by name via {@link Request} class).
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*
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* However narrowing and widening methods will work with local objects.
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*
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* @since 1.4
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*
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* @author Audrius Meskauskas, Lithuania (AudriusA@Bioinformatics.org)
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*/
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public class LocalObject
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implements org.omg.CORBA.Object
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{
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/**
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* The explaining message for the exception, thrown in response to call
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* the method, not appropriate for the local object.
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*/
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private static final String INAPPROPRIATE =
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"This is a locally constrained object.";
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/**
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* This method is not appropriate for the local objects and just
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* throws an exception.
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*
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* @throws NO_IMPLEMENT, always.
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*/
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public Request _create_request(Context context, String operation,
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NVList parameters, NamedValue returns
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)
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{
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throw new NO_IMPLEMENT(INAPPROPRIATE);
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}
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/**
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* This method is not appropriate for the local objects and just
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* throws an exception.
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*
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* @throws NO_IMPLEMENT, always.
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*/
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public Request _create_request(Context context, String operation,
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NVList parameters, NamedValue returns,
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ExceptionList exceptions, ContextList ctx_list
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)
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{
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throw new NO_IMPLEMENT(INAPPROPRIATE);
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}
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/**
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* This method is not appropriate for the local objects and just
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* throws an exception.
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*
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* @throws NO_IMPLEMENT, always.
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*/
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public org.omg.CORBA.Object _duplicate()
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{
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throw new NO_IMPLEMENT(INAPPROPRIATE);
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}
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/**
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* This method is not appropriate for the local objects and just
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* throws an exception.
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*
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* @throws NO_IMPLEMENT, always.
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*/
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public DomainManager[] _get_domain_managers()
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{
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throw new NO_IMPLEMENT(INAPPROPRIATE);
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}
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/**
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* This method is not appropriate for the local objects and just
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* throws an exception.
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*
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* @throws NO_IMPLEMENT, always.
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*/
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public org.omg.CORBA.Object _get_interface_def()
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{
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throw new NO_IMPLEMENT(INAPPROPRIATE);
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}
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/**
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* This method is not appropriate for the local objects and just
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* throws an exception.
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*
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* @throws NO_IMPLEMENT, always.
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*/
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public org.omg.CORBA.Object _get_interface()
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{
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throw new NO_IMPLEMENT(INAPPROPRIATE);
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}
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/**
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* This method is not appropriate for the local objects and just
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* throws an exception.
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*
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* @throws NO_IMPLEMENT, always.
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*/
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public Policy _get_policy(int a_policy_type)
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throws BAD_PARAM
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{
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throw new NO_IMPLEMENT(INAPPROPRIATE);
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}
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/**
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* {@inheritDoc}
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*/
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public int _hash(int maximum)
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{
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return Math.abs(hashCode()) % maximum;
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}
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/**
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* This method is not appropriate for the local objects and just
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* throws an exception.
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*
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* @throws NO_IMPLEMENT, always.
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*/
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public boolean _is_a(String repositoryIdentifer)
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{
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throw new NO_IMPLEMENT(INAPPROPRIATE);
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}
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/**
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* Determines if the object is equal to another object, so far as it is
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* possible to determine easily.
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*
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* @param other the other object.
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*
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* @return true if the pased object is not null and
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* java.lang.Object.equals(other) returns true. False otherwise.
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*/
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public boolean _is_equivalent(org.omg.CORBA.Object other)
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{
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if (other != null)
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if (other.equals(this))
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return true;
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return false;
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}
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/**
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* Always returs false.
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*
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* @return false, always.
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*/
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public boolean _non_existent()
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{
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return false;
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}
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/**
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* This method is not appropriate for the local objects and just
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* throws an exception.
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*
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* @throws NO_IMPLEMENT, always.
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*/
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public void _release()
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{
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throw new NO_IMPLEMENT(INAPPROPRIATE);
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}
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/**
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* This method is not appropriate for the local objects and just
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* throws an exception.
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*
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* @specnote it is possible to implement a local handling of the _request(),
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* but the API clearly states that NO_IMPLEMENT
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* must be thrown instead.
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*
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* @throws NO_IMPLEMENT, always.
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*/
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public Request _request(String operation)
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{
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throw new NO_IMPLEMENT(INAPPROPRIATE);
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}
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/**
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* This method is not appropriate for the local objects and just
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* throws an exception.
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*
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* @throws NO_IMPLEMENT, always.
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*/
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public org.omg.CORBA.Object _set_policy_override(Policy[] policies,
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SetOverrideType how
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)
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{
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throw new NO_IMPLEMENT(INAPPROPRIATE);
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}
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/**
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* This method is called from <code>rmic</code> generated stubs if the
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* {@link Util#isLocal}, called passing <code>this</code> as parameter,
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* returns true. If the method returns null, the requested method is then
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* invoked on <code>this</code>. Else it is invoked on the returned object,
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* casting it into the interface that the local object implements. In this
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* case, the generated stub also later calls
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* {@link #_servant_postinvoke(ServantObject)}, passing that returned target
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* as parameter.
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*
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* @param operation the name of the method being invoked.
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* @param expectedType the interface that the returned servant
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* object must implement.
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*
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* @throws NO_IMPLEMENT always. If used, the method must be overridden.
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*/
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@SuppressWarnings("rawtypes") // Needed for API compatibility
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public ServantObject _servant_preinvoke(String operation, Class expectedType)
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{
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throw new NO_IMPLEMENT(INAPPROPRIATE);
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}
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/**
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* This method is called from <code>rmic</code> generated stubs if the
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* {@link Util#isLocal}, called passing <code>this</code> as parameter,
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* returns true, and the {@link #_servant_preinvoke} return non-null object.
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* The stub then invokes the requrested method on that returned object and
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* later calls _servant_postinvoke, passing that returned target as parameter.
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*
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* @param servant the object that has served as the invocation target for the
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* current operation.
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*/
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public void _servant_postinvoke(ServantObject servant)
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{
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}
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/**
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* Invokes the operation. This method takes the OutputStream that was previously
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* returned by a {@link #_request(String)} and returns an InputStream which
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* contains the reply. Up till jdk 1.5 inclusive this method is marked as
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* unimplemented.
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*
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* @throws NO_IMPLEMENT always.
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*/
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public InputStream _invoke(OutputStream output)
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throws ApplicationException, RemarshalException
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{
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throw new NO_IMPLEMENT(INAPPROPRIATE);
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}
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/**
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* While it may look that this should return true, the jdk 1.5 API states
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* that it must throw NO_IMPLEMENT instead. The rmi stubs do not call this
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* method to check if the object is local; they call {@link Util#isLocal}
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* instead (passing <code>this</code> as parameter).
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*
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* @return never.
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*
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* @throws NO_IMPLEMENT always.
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*/
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public boolean _is_local()
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{
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throw new NO_IMPLEMENT(INAPPROPRIATE);
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}
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/**
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* This method is not appropriate for the local objects and just
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* throws an exception.
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*
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* @throws NO_IMPLEMENT, always.
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*/
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public ORB _orb()
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{
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throw new NO_IMPLEMENT(INAPPROPRIATE);
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}
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/**
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* This method is not appropriate for the local objects and just
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* throws an exception.
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*
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* @throws NO_IMPLEMENT, always.
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*/
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public void _releaseReply(InputStream input)
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{
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throw new NO_IMPLEMENT(INAPPROPRIATE);
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}
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/**
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* This method is not appropriate for the local objects and just
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* throws an exception.
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*
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* @throws NO_IMPLEMENT, always.
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*/
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public OutputStream _request(String operation, boolean responseExpected)
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{
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throw new NO_IMPLEMENT(INAPPROPRIATE);
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}
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/**
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* This method is not appropriate for the local objects and just
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* throws an exception.
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*
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* @throws NO_IMPLEMENT, always.
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*/
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public boolean validate_connection()
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{
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throw new NO_IMPLEMENT(INAPPROPRIATE);
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}
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}
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