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 }