01: /*
02: * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
03: *
04: * Copyright 1997-2007 Sun Microsystems, Inc. All rights reserved.
05: *
06: * The contents of this file are subject to the terms of either the GNU
07: * General Public License Version 2 only ("GPL") or the Common Development
08: * and Distribution License("CDDL") (collectively, the "License"). You
09: * may not use this file except in compliance with the License. You can obtain
10: * a copy of the License at https://glassfish.dev.java.net/public/CDDL+GPL.html
11: * or glassfish/bootstrap/legal/LICENSE.txt. See the License for the specific
12: * language governing permissions and limitations under the License.
13: *
14: * When distributing the software, include this License Header Notice in each
15: * file and include the License file at glassfish/bootstrap/legal/LICENSE.txt.
16: * Sun designates this particular file as subject to the "Classpath" exception
17: * as provided by Sun in the GPL Version 2 section of the License file that
18: * accompanied this code. If applicable, add the following below the License
19: * Header, with the fields enclosed by brackets [] replaced by your own
20: * identifying information: "Portions Copyrighted [year]
21: * [name of copyright owner]"
22: *
23: * Contributor(s):
24: *
25: * If you wish your version of this file to be governed by only the CDDL or
26: * only the GPL Version 2, indicate your decision by adding "[Contributor]
27: * elects to include this software in this distribution under the [CDDL or GPL
28: * Version 2] license." If you don't indicate a single choice of license, a
29: * recipient has the option to distribute your version of this file under
30: * either the CDDL, the GPL Version 2 or to extend the choice of license to
31: * its licensees as provided above. However, if you add GPL Version 2 code
32: * and therefore, elected the GPL Version 2 license, then the option applies
33: * only if the new code is made subject to such option by the copyright
34: * holder.
35: */
36:
37: package javax.servlet.jsp.jstl.core;
38:
39: import javax.el.ELContext;
40: import javax.el.ValueExpression;
41:
42: /**
43: * @author Kin-man Chung
44: * @version $Id: IteratedValueExpression.java,v 1.3 2007/05/06 02:17:13 tcfujii Exp $
45: */
46: public final class IteratedValueExpression extends ValueExpression {
47:
48: private static final long serialVersionUID = 1L;
49: protected final int i;
50: protected final IteratedExpression iteratedExpression;
51:
52: public IteratedValueExpression(IteratedExpression iteratedExpr,
53: int i) {
54: this .i = i;
55: this .iteratedExpression = iteratedExpr;
56: }
57:
58: public Object getValue(ELContext context) {
59: return iteratedExpression.getItem(context, i);
60: }
61:
62: public void setValue(ELContext context, Object value) {
63: }
64:
65: public boolean isReadOnly(ELContext context) {
66: return true;
67: }
68:
69: public Class getType(ELContext context) {
70: return null;
71: }
72:
73: public Class getExpectedType() {
74: return Object.class;
75: }
76:
77: public String getExpressionString() {
78: return iteratedExpression.getValueExpression()
79: .getExpressionString();
80: }
81:
82: public boolean equals(Object obj) {
83: return iteratedExpression.getValueExpression().equals(obj);
84: }
85:
86: public int hashCode() {
87: return iteratedExpression.getValueExpression().hashCode();
88: }
89:
90: public boolean isLiteralText() {
91: return false;
92: }
93: }
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