CopyobjectDefaults.java revision 608:7e06bf1dcb09 
1/*
2 * Copyright (c) 2003, 2004, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.  Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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23 * questions.
24 */
25
26package com.sun.corba.se.spi.copyobject ;
27
28import com.sun.corba.se.spi.orb.ORB ;
29
30import com.sun.corba.se.impl.copyobject.ReferenceObjectCopierImpl ;
31import com.sun.corba.se.impl.copyobject.FallbackObjectCopierImpl ;
32import com.sun.corba.se.impl.copyobject.ORBStreamObjectCopierImpl ;
33import com.sun.corba.se.impl.copyobject.JavaStreamObjectCopierImpl ;
34
35public abstract class CopyobjectDefaults
36{
37    private CopyobjectDefaults() { }
38
39    /** Obtain the ORB stream copier factory.  Note that this version behaves differently
40     * than the others: each ObjectCopier produced by the factory only preserves aliasing
41     * within a single call to copy.  The others copiers all preserve aliasing across
42     * all calls to copy (on the same ObjectCopier instance).
43     */
44    public static ObjectCopierFactory makeORBStreamObjectCopierFactory( final ORB orb )
45    {
46        return new ObjectCopierFactory() {
47            public ObjectCopier make( )
48            {
49                return new ORBStreamObjectCopierImpl( orb ) ;
50            }
51        } ;
52    }
53
54    public static ObjectCopierFactory makeJavaStreamObjectCopierFactory( final ORB orb )
55    {
56        return new ObjectCopierFactory() {
57            public ObjectCopier make( )
58            {
59                return new JavaStreamObjectCopierImpl( orb ) ;
60            }
61        } ;
62    }
63
64    private static final ObjectCopier referenceObjectCopier = new ReferenceObjectCopierImpl() ;
65
66    private static ObjectCopierFactory referenceObjectCopierFactory =
67        new ObjectCopierFactory() {
68            public ObjectCopier make()
69            {
70                return referenceObjectCopier ;
71            }
72        } ;
73
74    /** Obtain the reference object "copier".  This does no copies: it just
75     * returns whatever is passed to it.
76     */
77    public static ObjectCopierFactory getReferenceObjectCopierFactory()
78    {
79        return referenceObjectCopierFactory ;
80    }
81
82    /** Create a fallback copier factory from the two ObjectCopierFactory
83     * arguments.  This copier makes an ObjectCopierFactory that creates
84     * instances of a fallback copier that first tries an ObjectCopier
85     * created from f1, then tries one created from f2, if the first
86     * throws a ReflectiveCopyException.
87     */
88    public static ObjectCopierFactory makeFallbackObjectCopierFactory(
89        final ObjectCopierFactory f1, final ObjectCopierFactory f2 )
90    {
91        return new ObjectCopierFactory() {
92            public ObjectCopier make()
93            {
94                ObjectCopier c1 = f1.make() ;
95                ObjectCopier c2 = f2.make() ;
96                return new FallbackObjectCopierImpl( c1, c2 ) ;
97            }
98        } ;
99    }
100}
101