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package com.sun.tools.internal.xjc.model;

import com.sun.codemodel.internal.JExpression;
import com.sun.tools.internal.xjc.outline.Outline;
import com.sun.xml.internal.xsom.XmlString;

Object that computes the default value expression lazily.
The computation is done lazily because often the default value
needs to refer to things (such as enum classes) that are only generated
after some of the outline is built.
Author:
Kohsuke Kawaguchi/**
 * Object that computes the default value expression lazily.
 *
 * The computation is done lazily because often the default value
 * needs to refer to things (such as enum classes) that are only generated
 * after some of the outline is built.
 *
 * @author Kohsuke Kawaguchi
 */
public abstract class CDefaultValue {
    public abstract JExpression compute(Outline outline);

    
Creates a new CDefaultValue that computes the default value by applying a lexical representation to a TypeUse. /**
     * Creates a new {@link CDefaultValue} that computes the default value
     * by applying a lexical representation to a {@link TypeUse}.
     */
    public static CDefaultValue create(final TypeUse typeUse, final XmlString defaultValue) {
        return new CDefaultValue() {
            public JExpression compute(Outline outline) {
                return typeUse.createConstant(outline,defaultValue);
            }
        };
    }
}