001 /* ValueBase.java --
002 Copyright (C) 2005 Free Software Foundation, Inc.
003
004 This file is part of GNU Classpath.
005
006 GNU Classpath is free software; you can redistribute it and/or modify
007 it under the terms of the GNU General Public License as published by
008 the Free Software Foundation; either version 2, or (at your option)
009 any later version.
010
011 GNU Classpath is distributed in the hope that it will be useful, but
012 WITHOUT ANY WARRANTY; without even the implied warranty of
013 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
014 General Public License for more details.
015
016 You should have received a copy of the GNU General Public License
017 along with GNU Classpath; see the file COPYING. If not, write to the
018 Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
019 02110-1301 USA.
020
021 Linking this library statically or dynamically with other modules is
022 making a combined work based on this library. Thus, the terms and
023 conditions of the GNU General Public License cover the whole
024 combination.
025
026 As a special exception, the copyright holders of this library give you
027 permission to link this library with independent modules to produce an
028 executable, regardless of the license terms of these independent
029 modules, and to copy and distribute the resulting executable under
030 terms of your choice, provided that you also meet, for each linked
031 independent module, the terms and conditions of the license of that
032 module. An independent module is a module which is not derived from
033 or based on this library. If you modify this library, you may extend
034 this exception to your version of the library, but you are not
035 obligated to do so. If you do not wish to do so, delete this
036 exception statement from your version. */
037
038
039 package org.omg.CORBA.portable;
040
041
042 /**
043 * ValueBase is the basic interface for all CORBA value data types. A value
044 * type is something between CORBA structure and CORBA object. Like CORBA
045 * object, it can have methods, supporting some IDL-defined interface.
046 * However, like structures, they are local and passed by value,
047 * not by IOR reference.
048 *
049 * Unlike CORBA objects, values are not connected to any ORB by
050 * default; they hanlde the implemented functionality locally. The classes,
051 * required to implement that functionality, should either be pre-defined
052 * or they can be downloaded from the certain URL, defined as CodeBase.
053 *
054 * The value types can have both public and private members. They support
055 * inheritance. Value types can also be abstract.
056 *
057 * For transferring the value type data via stream, it must implement either
058 * {@link CustomValue} or {@link StreamableValue}.
059 *
060 * @since 1.3
061 *
062 * @author Audrius Meskauskas, Lithuania (AudriusA@Bioinformatics.org)
063 */
064 public interface ValueBase
065 extends IDLEntity
066 {
067 /**
068 * Get the truncatable repository ids.
069 *
070 * @return the array of repository ids, defining the base types, to that
071 * basic types this value base can be truncated.
072 */
073 String[] _truncatable_ids();
074 }