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+/* Tie.java --
+   Copyright (C) 2002, 2005 Free Software Foundation, Inc.
+
+This file is part of GNU Classpath.
+
+GNU Classpath is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+GNU Classpath is distributed in the hope that it will be useful, but
+WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GNU Classpath; see the file COPYING.  If not, write to the
+Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library.  Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module.  An independent module is a module which is not derived from
+or based on this library.  If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so.  If you do not wish to do so, delete this
+exception statement from your version. */
+
+package javax.rmi.CORBA;
+
+import java.rmi.NoSuchObjectException;
+import java.rmi.Remote;
+import org.omg.CORBA.ORB;
+import org.omg.CORBA.portable.InvokeHandler;
+
+/**
+ * <p>
+ * A Tie serves as a CORBA Servant or implementation base. It is connected to
+ * the ORB on a server side, providing the implementation of the required
+ * functionality. ORB access this implementation using {@link InvokeHandler}
+ * ._invoke(..). All such calls are finally delegated to the object, returned by
+ * {@link #getTarget()}.
+ * </p>
+ * <p>
+ * Ties are generated from implementations (name pattern *Impl) and have the
+ * name pattern _*Impl_Tie, for instance:<br>
+ * <code>rmic -keep -iiop -poa -always gnu.testlet.java.rmi.Remote.CalculatorImpl</code>
+ * </p>
+ * <p>
+ * Ties should normally be derived from the
+ * {@link org.omg.PortableServer.Servant}. Such ties are generated by
+ * <code>rmic</code> compiler using <code>-poa</code> key. Ties can be also
+ * derived from {@link org.omg.CORBA_2_3.portable.ObjectImpl}.
+ * </p>
+ *
+ * @author Audrius Meskauskas (AudriusA@Bioinformatics.org)
+ */
+public interface Tie
+  extends InvokeHandler
+{
+  /**
+   * Get the invocation target, where all method calls should be delegated.
+   *
+   * @return the object, implementing methods, defined in the interface being
+   * served by this Tie.
+   */
+  Remote getTarget();
+
+  /**
+   * Set the invocation target, where all method calls should be delegated.
+   *
+   * @param target the object, implementing methods, defined in the interface
+   * being served by this Tie. The code, produced by a typical rmic compiler
+   * usually requires the target to be an instance of the implementation from
+   * that the Tie was generated.
+   *
+   * @throws ClassCastException if the passed parameter is not an instance of
+   * the implementation from that the Tie was generated.
+   */
+  void setTarget(Remote target);
+
+  /**
+   * Get the ORB to that this Tie is connected.
+   *
+   * @see org.omg.PortableServer.Servant#_orb
+   */
+  ORB orb();
+
+  /**
+   * Connect this Tie to the given ORB.
+   */
+  void orb(ORB orb);
+
+  /**
+   * Get the object that delegates calls to this tie.
+   *
+   * @see org.omg.PortableServer.Servant#_this_object()
+   */
+  org.omg.CORBA.Object thisObject();
+
+  /**
+   * Deactivate this Tie. The tie is normally deactivated using POA mechanisms.
+   * Depending on the POA policies, it may be possible to activate the Tie
+   * again. The ties that are not derived from
+   * {@link org.omg.PortableServer.Servant} deactivate themselves by
+   * {@link ORB#disconnect}.
+   *
+   * @throws NoSuchObjectException if there are no objects served by this Tie,
+   * or if the these objects are already deactivated.
+   *
+   * @see org.omg.PortableServer.POAOperations#deactivate_object
+   */
+  void deactivate()
+    throws NoSuchObjectException;
+
+}