src/share/jaxws_classes/com/sun/tools/internal/xjc/model/CDefaultValue.java

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1 /*
2 * Copyright (c) 1997, 2011, 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
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26 package com.sun.tools.internal.xjc.model;
27
28 import com.sun.codemodel.internal.JExpression;
29 import com.sun.tools.internal.xjc.outline.Outline;
30 import com.sun.xml.internal.xsom.XmlString;
31
32 /**
33 * Object that computes the default value expression lazily.
34 *
35 * The computation is done lazily because often the default value
36 * needs to refer to things (such as enum classes) that are only generated
37 * after some of the outline is built.
38 *
39 * @author Kohsuke Kawaguchi
40 */
41 public abstract class CDefaultValue {
42 public abstract JExpression compute(Outline outline);
43
44 /**
45 * Creates a new {@link CDefaultValue} that computes the default value
46 * by applying a lexical representation to a {@link TypeUse}.
47 */
48 public static CDefaultValue create(final TypeUse typeUse, final XmlString defaultValue) {
49 return new CDefaultValue() {
50 public JExpression compute(Outline outline) {
51 return typeUse.createConstant(outline,defaultValue);
52 }
53 };
54 }
55 }

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