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.component;
042:
043: import javax.faces.context.FacesContext;
044: import com.sun.rave.web.ui.util.ConversionUtilities;
045:
046: /**
047: *
048: * @author avk
049: */
050: public class HiddenField extends HiddenFieldBase {
051:
052: private final static boolean DEBUG = false;
053:
054: /** Creates a new instance of HiddenField */
055: public HiddenField() {
056: }
057:
058: /**
059: * <p>Return the value to be rendered as a string when the
060: * component is readOnly. The default behaviour is to
061: * invoke getValueAsString(). Override this method in case
062: * a component needs specialized behaviour.</p>
063: * @param context FacesContext for the current request
064: * @return A String value of the component
065: */
066: public String getReadOnlyValueString(FacesContext context) {
067: return getValueAsString(context);
068: }
069:
070: /**
071: * <p>Return the value to be rendered, as a String (converted
072: * if necessary), or <code>null</code> if the value is null.</p>
073: * @param context FacesContext for the current request
074: * @return A String value of the component
075: */
076: public String getValueAsString(FacesContext context) {
077:
078: if (DEBUG)
079: log("getValueAsString()");
080:
081: // This is done in case the RENDER_RESPONSE is occuring
082: // prematurely due to some error or an immediate condition
083: // on a button. submittedValue is set to null when the
084: // component has been validated.
085: // If the component has not passed through the PROCESS_VALIDATORS
086: // phase then submittedValue will be non null if a value
087: // was submitted for this component.
088: //
089: Object submittedValue = getSubmittedValue();
090: if (submittedValue != null) {
091: if (DEBUG) {
092: log("Submitted value is not null " + //NOI18N
093: submittedValue.toString());
094: }
095: return (String) submittedValue;
096: }
097:
098: String value = ConversionUtilities.convertValueToString(this ,
099: getValue());
100: if (value == null) {
101: value = new String();
102: }
103: if (DEBUG)
104: log("Component value is " + value);
105: return value;
106: }
107:
108: /**
109: * Return the converted value of newValue.
110: * If newValue is null, return null.
111: * If newValue is "", check the rendered value. If the
112: * the value that was rendered was null, return null
113: * else continue to convert.
114: */
115: protected Object getConvertedValue(FacesContext context,
116: Object newValue)
117: throws javax.faces.convert.ConverterException {
118:
119: if (DEBUG)
120: log("getConvertedValue()");
121:
122: Object value = ConversionUtilities.convertRenderedValue(
123: context, newValue, this );
124:
125: if (DEBUG)
126: log("\tComponent is valid " + String.valueOf(isValid()));
127: if (DEBUG)
128: log("\tValue is " + String.valueOf(value));
129: return value;
130: }
131:
132: protected void log(String s) {
133: System.out.println(this .getClass().getName() + "::" + s);
134: }
135: }
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