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126 lines
4.4 KiB
Java
126 lines
4.4 KiB
Java
/* Tie.java --
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Copyright (C) 2002, 2005 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 javax.rmi.CORBA;
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import java.rmi.NoSuchObjectException;
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import java.rmi.Remote;
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import org.omg.CORBA.ORB;
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import org.omg.CORBA.portable.InvokeHandler;
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/**
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* <p>
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* A Tie serves as a CORBA Servant or implementation base. It is connected to
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* the ORB on a server side, providing the implementation of the required
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* functionality. ORB access this implementation using {@link InvokeHandler}
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* ._invoke(..). All such calls are finally delegated to the object, returned by
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* {@link #getTarget()}.
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* </p>
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* <p>
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* Ties are generated from implementations (name pattern *Impl) and have the
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* name pattern _*Impl_Tie, for instance:<br>
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* <code>rmic -keep -iiop -poa -always gnu.testlet.java.rmi.Remote.CalculatorImpl</code>
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* </p>
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* <p>
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* Ties should normally be derived from the
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* {@link org.omg.PortableServer.Servant}. Such ties are generated by
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* <code>rmic</code> compiler using <code>-poa</code> key. Ties can be also
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* derived from {@link org.omg.CORBA_2_3.portable.ObjectImpl}.
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* </p>
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*
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* @author Audrius Meskauskas (AudriusA@Bioinformatics.org)
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*/
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public interface Tie
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extends InvokeHandler
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{
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/**
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* Get the invocation target, where all method calls should be delegated.
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*
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* @return the object, implementing methods, defined in the interface being
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* served by this Tie.
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*/
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Remote getTarget();
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/**
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* Set the invocation target, where all method calls should be delegated.
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*
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* @param target the object, implementing methods, defined in the interface
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* being served by this Tie. The code, produced by a typical rmic compiler
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* usually requires the target to be an instance of the implementation from
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* that the Tie was generated.
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*
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* @throws ClassCastException if the passed parameter is not an instance of
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* the implementation from that the Tie was generated.
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*/
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void setTarget(Remote target);
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/**
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* Get the ORB to that this Tie is connected.
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*
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* @see org.omg.PortableServer.Servant#_orb
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*/
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ORB orb();
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/**
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* Connect this Tie to the given ORB.
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*/
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void orb(ORB orb);
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/**
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* Get the object that delegates calls to this tie.
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*
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* @see org.omg.PortableServer.Servant#_this_object()
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*/
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org.omg.CORBA.Object thisObject();
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/**
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* Deactivate this Tie. The tie is normally deactivated using POA mechanisms.
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* Depending on the POA policies, it may be possible to activate the Tie
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* again. The ties that are not derived from
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* {@link org.omg.PortableServer.Servant} deactivate themselves by
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* {@link ORB#disconnect}.
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*
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* @throws NoSuchObjectException if there are no objects served by this Tie,
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* or if the these objects are already deactivated.
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*
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* @see org.omg.PortableServer.POAOperations#deactivate_object
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*/
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void deactivate()
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throws NoSuchObjectException;
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}
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