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142 lines
5.7 KiB
Java
142 lines
5.7 KiB
Java
/* POAManagerOperations.java --
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Copyright (C) 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 org.omg.PortableServer;
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import org.omg.PortableServer.POAManagerPackage.AdapterInactive;
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import org.omg.PortableServer.POAManagerPackage.State;
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/**
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* Defines the operations, applicable to the {@link POAManager}.
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* These operations can turn the associated POAs to and from holding,
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* active and discarding states, but the incative state is irreversible.
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* The inactivated POAs can only be recreated after they were destroyed.
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*
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* @author Audrius Meskauskas, Lithuania (AudriusA@Bioinformatics.org)
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*/
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public interface POAManagerOperations
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{
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/**
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* Turns the associated POAs into active state, allowing them to receive
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* and process requests.
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*
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* @throws AdapterInactive if the POAs are in the inactive state. If
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* once inactivated, the POA cannot be activated again.
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* This method can only be called to leave the holding or discarding state.
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*/
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void activate()
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throws AdapterInactive;
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/**
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* <p>
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* Turns the asociated POAs into inactive state. The POAs in the incative
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* state will reject new requests. A cliet, trying to invoke an
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* object, belonging to the inactivated POA, will receive the remote exception
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* ({@link org.omg.CORBA.OBJ_ADAPTER}, minor code 0x535503ea, incomplete).
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* </p><p>
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* If the POA is once inactivated, it cannot be activated again.
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* The operation is used when the associated POAs are to be shut down.
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* </p>
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* <p>
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* Some independent implementations may set the minor code of the
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* OBJ_ADAPTER to 1, as recommended by OMG (formal/04-03-12).
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* The interoperable systems should expect any of these two values.
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* </p>
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*
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* @param etherealize_objects if true, the servant managers of the
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* associated POAs, having RETAIN and USE_SERVANT_MANAGER policies,
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* will receive a call of {@link ServantActivatorOperations#etherealize}.
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*
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* @param wait_for_completion if true, the method call suspends the current
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* thread till POAs complete the requests they are currently processing. If
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* false, the method returns immediately.
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* <p>
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*
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* @specnote The 0x535503ea is a Sun specific minor exception code 1002,
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* used for interoperability reasons.
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*
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* @throws AdapterInactive if the POAs are already in the inactive state.
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*
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* @see POAOperations#destroy
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*/
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void deactivate(boolean etherealize_objects, boolean wait_for_completion)
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throws AdapterInactive;
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/**
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* <p>
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* Turns the associated POAs into discaring state. In this state, the POAs
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* discard the incoming requests. This mode is used in situations when
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* the server is flooded with requests. The client receives remote exception
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* ({@link org.omg.CORBA.TRANSIENT}, minor code 0x535503e9, incomplete).
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* </p><p>
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* Some independent implementations may set the minor code of the
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* TRANSIENT to 1, as recommended by OMG (formal/04-03-12).
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* The interoperable systems should expect any of these two values.
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* </p>
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*
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* @param wait_for_completion if true, the method call suspends the current
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* thread till POAs complete the requests they are currently processing. If
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* false, the method returns immediately.
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*
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* @specnote The 0x535503e9 is a Sun specific minor exception code 1001,
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* used for interoperability reasons.
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*
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* @throws AdapterInactive if the POAs are in the inactive state.
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*/
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void discard_requests(boolean wait_for_completion)
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throws AdapterInactive;
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/**
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* Get the state of the POA manager.
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*/
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State get_state();
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/**
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* Turns the associated POAs into holding state. In this state, the POAs
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* queue incoming requests but do not process them.
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*
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* @param wait_for_completion if true, the method call suspends the current
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* thread till POAs complete the requests they are currently processing. If
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* false, the method returns immediately.
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* @throws AdapterInactive if the POAs are in the inactive state.
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*/
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void hold_requests(boolean wait_for_completion)
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throws AdapterInactive;
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}
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