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/*
 * Copyright (C) 2007 Sun Microsystems, Inc. All rights reserved. Use is
 * subject to license terms.
 *
 *//* Generated By:JJTree: Do not edit this line. AstCompositeExpression.java */

package org.jdesktop.el.impl.parser;

import org.jdesktop.el.ELContext;
import org.jdesktop.el.ELException;

import org.jdesktop.el.impl.lang.EvaluationContext;

/**
 * @author Jacob Hookom [[email protected]]
 * @version $Change: 181177 $$DateTime: 2001/06/26 08:45:09 $$Author: kchung $
 */
public final class AstCompositeExpression extends SimpleNode {

    public AstCompositeExpression(int id) {
        super(id);
    }

    public Class getType(EvaluationContext ctx)
            throws ELException {
        return String.class;
    }

    public Object getValue(EvaluationContext ctx)
            throws ELException {
        StringBuffer sb = new StringBuffer(16);
        Object obj = null;
        if (this.children != null) {
            for (int i = 0; i < this.children.length; i++) {
                obj = this.children[i].getValue(ctx);
                if (obj == ELContext.UNRESOLVABLE_RESULT) {
                    return ELContext.UNRESOLVABLE_RESULT;
                }
                if (obj != null) {
                    sb.append(obj);
                }
            }
        }
        return sb.toString();
    }
}