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IteratedValueExpression.javaAPI DocGlassfish v2 API3337Sat May 05 19:17:14 BST 2007javax.servlet.jsp.jstl.core

IteratedValueExpression.java

/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 * 
 * Copyright 1997-2007 Sun Microsystems, Inc. All rights reserved.
 * 
 * The contents of this file are subject to the terms of either the GNU
 * General Public License Version 2 only ("GPL") or the Common Development
 * and Distribution License("CDDL") (collectively, the "License").  You
 * may not use this file except in compliance with the License. You can obtain
 * a copy of the License at https://glassfish.dev.java.net/public/CDDL+GPL.html
 * or glassfish/bootstrap/legal/LICENSE.txt.  See the License for the specific
 * language governing permissions and limitations under the License.
 * 
 * When distributing the software, include this License Header Notice in each
 * file and include the License file at glassfish/bootstrap/legal/LICENSE.txt.
 * Sun designates this particular file as subject to the "Classpath" exception
 * as provided by Sun in the GPL Version 2 section of the License file that
 * accompanied this code.  If applicable, add the following below the License
 * Header, with the fields enclosed by brackets [] replaced by your own
 * identifying information: "Portions Copyrighted [year]
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 * elects to include this software in this distribution under the [CDDL or GPL
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package javax.servlet.jsp.jstl.core;

import javax.el.ELContext;
import javax.el.ValueExpression;

/**
 * @author Kin-man Chung
 * @version $Id: IteratedValueExpression.java,v 1.3 2007/05/06 02:17:13 tcfujii Exp $
 */
public final class IteratedValueExpression extends ValueExpression {

    private static final long serialVersionUID = 1L;
    protected final int i;
    protected final IteratedExpression iteratedExpression;

    public IteratedValueExpression(IteratedExpression iteratedExpr, int i) {
        this.i = i;
        this.iteratedExpression = iteratedExpr;
    }

    public Object getValue(ELContext context) {
        return iteratedExpression.getItem(context, i);
    }

    public void setValue(ELContext context, Object value) {
    }

    public boolean isReadOnly(ELContext context) {
        return true;
    }

    public Class getType(ELContext context) {
        return null;
    }

    public Class getExpectedType() {
        return Object.class;
    }

    public String getExpressionString() {
        return iteratedExpression.getValueExpression().getExpressionString();
    }

    public boolean equals(Object obj) {
        return iteratedExpression.getValueExpression().equals(obj);
    }

    public int hashCode() {
        return iteratedExpression.getValueExpression().hashCode();
    }

    public boolean isLiteralText() {
        return false;
    }
}