001: /*
002: * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
003: *
004: * Copyright 1997-2007 Sun Microsystems, Inc. All rights reserved.
005: *
006: * The contents of this file are subject to the terms of either the GNU
007: * General Public License Version 2 only ("GPL") or the Common
008: * Development and Distribution License("CDDL") (collectively, the
009: * "License"). You may not use this file except in compliance with the
010: * License. You can obtain a copy of the License at
011: * http://www.netbeans.org/cddl-gplv2.html
012: * or nbbuild/licenses/CDDL-GPL-2-CP. See the License for the
013: * specific language governing permissions and limitations under the
014: * License. When distributing the software, include this License Header
015: * Notice in each file and include the License file at
016: * nbbuild/licenses/CDDL-GPL-2-CP. Sun designates this
017: * particular file as subject to the "Classpath" exception as provided
018: * by Sun in the GPL Version 2 section of the License file that
019: * accompanied this code. If applicable, add the following below the
020: * License Header, with the fields enclosed by brackets [] replaced by
021: * your own identifying information:
022: * "Portions Copyrighted [year] [name of copyright owner]"
023: *
024: * Contributor(s):
025: *
026: * The Original Software is NetBeans. The Initial Developer of the Original
027: * Software is Sun Microsystems, Inc. Portions Copyright 1997-2007 Sun
028: * Microsystems, Inc. All Rights Reserved.
029: *
030: * If you wish your version of this file to be governed by only the CDDL
031: * or only the GPL Version 2, indicate your decision by adding
032: * "[Contributor] elects to include this software in this distribution
033: * under the [CDDL or GPL Version 2] license." If you do not indicate a
034: * single choice of license, a recipient has the option to distribute
035: * your version of this file under either the CDDL, the GPL Version 2 or
036: * to extend the choice of license to its licensees as provided above.
037: * However, if you add GPL Version 2 code and therefore, elected the GPL
038: * Version 2 license, then the option applies only if the new code is
039: * made subject to such option by the copyright holder.
040: */
041: package com.sun.rave.web.ui.el;
042:
043: import javax.faces.component.StateHolder;
044: import javax.faces.context.FacesContext;
045: import javax.faces.el.MethodBinding;
046:
047: /**
048: * <p>Implementation of <code>MethodBinding</code> that always returns
049: * the value specified to our constructor.</p>
050: */
051: public class DropDownMethodBinding extends MethodBinding implements
052: StateHolder {
053:
054: /**
055: * <p>Zero arguments constructor for restoring state.</p>
056: */
057: public DropDownMethodBinding() {
058: }
059:
060: /**
061: * <p>The value to be returned when this method binding is
062: * evaluated.</p>
063: */
064: private transient String value = null;
065:
066: public void setValue(String value) {
067: this .value = value;
068: }
069:
070: /**
071: * <p>Return the appropriate constant value.</p>
072: *
073: * @param context <code>FacesContext</code> for this request
074: * @param params Method parameters to pass in
075: */
076: public Object invoke(FacesContext context, Object params[]) {
077: return value;
078: }
079:
080: /**
081: * <p>Return the expected return type class.</p>
082: *
083: * @param context <code>FacesContext</code> for this request
084: */
085: public Class getType(FacesContext context) {
086: return String.class;
087: }
088:
089: /**
090: * <p>Return the expression string for this method binding.</p>
091: */
092: public String getExpressionString() {
093: return this .value;
094: }
095:
096: private boolean transientFlag = false;
097:
098: public boolean isTransient() {
099: return this .transientFlag;
100: }
101:
102: public void setTransient(boolean transientFlag) {
103: this .transientFlag = transientFlag;
104: }
105:
106: public void restoreState(FacesContext context, Object state) {
107: this .value = (String) state;
108: }
109:
110: public Object saveState(FacesContext context) {
111: return this .value;
112: }
113:
114: public String toString() {
115: return "DropDownMethodBinding with value "
116: + String.valueOf(value);
117: }
118: }
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