Source Code Cross Referenced for TextFieldBase.java in  » IDE-Netbeans » visualweb.api.designer » com » sun » rave » web » ui » component » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » IDE Netbeans » visualweb.api.designer » com.sun.rave.web.ui.component 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


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 java.io.IOException;
044:        import javax.faces.component.UIComponent;
045:        import javax.faces.context.FacesContext;
046:        import javax.faces.el.MethodBinding;
047:        import javax.faces.el.ValueBinding;
048:
049:        /**
050:         * <p> Use the <code>ui:textField</code>  tag to create an input field for a single line of text.</p> 
051:         * 
052:         *     <h3>HTML Elements and Layout</h3>
053:         * 
054:         * <p>The textField component renders an XHTML <code>&lt;input
055:         *     type="text"&gt;</code>element.</p>  
056:         * 
057:         *     <h3>Configuring the <code>ui:textField</code> Tag</h3>
058:         * 
059:         * <p>Use the <code>text</code> attribute to associate the component with
060:         * a model object that represents the current value, by setting the
061:         * attribute's value to an EL expression that corresponds to a property
062:         * of a backing bean.</p>
063:         * 
064:         *     <p>To optionally specify a label for the component, use the
065:         *     <code>label</code> attribute, or specify a label facet. </p>
066:         * 
067:         *     <h3>Facets</h3>
068:         * 
069:         *     <ul>
070:         *     <li><code>label</code>: use this facet to specify a custom 
071:         *     component for the label.</li>
072:         *     <li><code>readOnly</code>: use this facet to specify a custom 
073:         *     component for displaying the value of this component when it is
074:         *     marked as readonly. The default is a <code>ui:staticText</code>. </li>
075:         *     </ul>
076:         * 
077:         * 
078:         *     <h3>Client-side JavaScript functions</h3>
079:         * 
080:         *     <p>In all the functions below, <code>&lt;id&gt;</code> should be
081:         *     the generated id of the TextField component. </p>
082:         * 
083:         *     <table cellpadding="2" cellspacing="2" border="1" 
084:         *            style="text-align: left; width: 100%;">
085:         *     <tbody>
086:         *     <tr>
087:         *     <td style="vertical-align">
088:         *     <code>field_setDisabled(&lt;id&gt;, &lt;disabled&gt;)</code>
089:         *     </td>
090:         *     <td style="vertical-align: top">
091:         *     Enable/disable the field. Set <code>&lt;disabled&gt;</code>
092:         *     to true to disable the component, or false to enable it.
093:         *     </td>
094:         *     </tr>
095:         *     <tr>
096:         *     <td style="vertical-align: top">
097:         *     <code>field_setValue(&lt;id&gt;, &lt;newValue&gt;)</code>
098:         *     </td>
099:         *     <td style="vertical-align: top">
100:         *     Set the value of the field to <code>&lt;newValue&gt;</code>.
101:         *     </td>
102:         *     </tr>
103:         *     <tr>
104:         *       <td style="vertical-align: top">
105:         *     <code>field_getValue(&lt;id&gt;)</code>
106:         *   </td>
107:         *     <td style="vertical-align: top">Get the value of the field.</td> </tr>
108:         *     <tr>
109:         *       <td style="vertical-align: top">
110:         *     <code>field_getInputElement(&lt;id&gt;)</code></td>
111:         *     <td style="vertical-align: top">
112:         *     Get hold of a reference to the input element rendered by this
113:         *     component.
114:         *     </td>
115:         *     </tr>
116:         *     <tr>
117:         *       <td style="vertical-align: top">
118:         *     <code>component_setVisible(&lt;id&gt;)</code>
119:         *   </td>
120:         *       <td style="vertical-align: top">Hide or show this component.
121:         *       </td>
122:         *     </tr>
123:         *   </tbody>
124:         * </table>
125:         * 
126:         * 
127:         *     <h3>Examples</h3>
128:         * 
129:         * <h4>Example 1: Text field with label and required icon</h4>
130:         * 
131:         * <p>This example uses a backing bean <code>FieldTest</code> with a
132:         * property <code>string</code>. The tag generates a label followed by
133:         * text input field. The required attribute is set to true, which causes
134:         * an icon to be rendered next to the label to indicate that the
135:         * application user must enter a value in the text field. The icon, label
136:         *   and input elements are enclosed by a span.</p>
137:         * <pre>
138:         *      &lt;ui:textField id="textfield" label="Enter a value:" 
139:         *                text="#{FieldTest.string}" 
140:         *                required="true"/&gt;
141:         * </pre>
142:         * 
143:         * <h4>Example 2:  Text field using a validator</h4> 
144:         * 
145:         * <p>
146:         * This example uses a backing bean <code>FieldTest</code> with a
147:         *     property <code>number</code>. The number property is an
148:         *     <code>int</code>, which means that the value must be converted to
149:         *     be displayed. It is not necessary to specify a Converter instance,
150:         *     however, since standard JSF conversion deals with this case. A
151:         *     Validator has been set to verify that any value entered by the
152:         *     user is within a certain range. The HTML elements are rendered as
153:         *     in example 1.</p> 
154:         * 
155:         * <pre>
156:         *      &lt;ui:textField id="test2" label="Enter a number:" 
157:         *                text="#{FieldTest.number}" 
158:         *                validator="#{FieldTest.checkNumberRange}"/&gt;
159:         * </pre>
160:         * <p>Auto-generated component class.
161:         * Do <strong>NOT</strong> modify; all changes
162:         * <strong>will</strong> be lost!</p>
163:         */
164:
165:        public abstract class TextFieldBase extends
166:                com.sun.rave.web.ui.component.Field {
167:
168:            /**
169:             * <p>Construct a new <code>TextFieldBase</code>.</p>
170:             */
171:            public TextFieldBase() {
172:                super ();
173:                setRendererType("com.sun.rave.web.ui.TextField");
174:            }
175:
176:            /**
177:             * <p>Return the identifier of the component family to which this
178:             * component belongs.  This identifier, in conjunction with the value
179:             * of the <code>rendererType</code> property, may be used to select
180:             * the appropriate {@link Renderer} for this component instance.</p>
181:             */
182:            public String getFamily() {
183:                return "com.sun.rave.web.ui.TextField";
184:            }
185:
186:            /**
187:             * <p>Restore the state of this component.</p>
188:             */
189:            public void restoreState(FacesContext _context, Object _state) {
190:                Object _values[] = (Object[]) _state;
191:                super .restoreState(_context, _values[0]);
192:            }
193:
194:            /**
195:             * <p>Save the state of this component.</p>
196:             */
197:            public Object saveState(FacesContext _context) {
198:                Object _values[] = new Object[1];
199:                _values[0] = super.saveState(_context);
200:                return _values;
201:            }
202:
203:        }
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