Start line:  
End line:  

Snippet Preview

Snippet HTML Code

Stack Overflow Questions
  /*
   * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
   *
   * Copyright (c) 1997-2010 Oracle and/or its affiliates. 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_1_1.html
  * or packager/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 packager/legal/LICENSE.txt.
  *
  * GPL Classpath Exception:
  * Oracle designates this particular file as subject to the "Classpath"
  * exception as provided by Oracle in the GPL Version 2 section of the License
  * file that accompanied this code.
  *
  * Modifications:
  * If applicable, add the following below the License Header, with the fields
  * enclosed by brackets [] replaced by your own identifying information:
  * "Portions Copyright [year] [name of copyright owner]"
  *
  * Contributor(s):
  * If you wish your version of this file to be governed by only the CDDL or
  * only the GPL Version 2, indicate your decision by adding "[Contributor]
  * elects to include this software in this distribution under the [CDDL or GPL
  * Version 2] license."  If you don't indicate a single choice of license, a
  * recipient has the option to distribute your version of this file under
  * either the CDDL, the GPL Version 2 or to extend the choice of license to
  * its licensees as provided above.  However, if you add GPL Version 2 code
  * and therefore, elected the GPL Version 2 license, then the option applies
  * only if the new code is made subject to such option by the copyright
  * holder.
  */
 
 package javax.faces.component;
 
 

UISelectOne is a UIComponent that represents the user's choice of zero or one items from among a discrete set of available options. The user can modify the selected value. Optionally, the component can be preconfigured with a currently selected item, by storing it as the value property of the component.

This component is generally rendered as a select box or a group of radio buttons.

By default, the rendererType property is set to "javax.faces.Menu". This value can be changed by calling the setRendererType() method.

 
 
 public class UISelectOne extends UIInput {
 
 
     // ------------------------------------------------------ Manifest Constants
 

    

The standard component type for this component.

 
     public static final String COMPONENT_TYPE = "javax.faces.SelectOne";


    

The standard component family for this component.

 
     public static final String COMPONENT_FAMILY = "javax.faces.SelectOne";


    

The message identifier of the javax.faces.application.FacesMessage to be created if a value not matching the available options is specified.

 
     public static final String INVALID_MESSAGE_ID =
         "javax.faces.component.UISelectOne.INVALID";
 
 
     // ------------------------------------------------------------ Constructors
 

    

Create a new UISelectOne instance with default property values.

 
     public UISelectOne() {
 
        super();
        setRendererType("javax.faces.Menu");
    }
    // -------------------------------------------------------------- Properties
    public String getFamily() {
        return ();
    }
    // ------------------------------------------------------ Validation Methods


    

In addition to the standard validation behavior inherited from UIInput, ensure that any specified value is equal to one of the available options. Before comparing each option, coerce the option value type to the type of this component's value following the Expression Language coercion rules. If the specified value is not equal to any of the options, enqueue an error message and set the valid property to false.

If UIInput.isRequired() returns true, and the current value is equal to the value of an inner UISelectItem whose UISelectItem.isNoSelectionOption() method returns true, enqueue an error message and set the valid property to false.

Parameters:
context The javax.faces.context.FacesContext for the current request
value The converted value to test for membership.
Throws:
java.lang.NullPointerException if context is null
    protected void validateValue(FacesContext contextObject value) {
        // Skip validation if it is not necessary
        super.validateValue(contextvalue);
        if (!isValid() || (value == null)) {
            return;
        }
        // Ensure that the value matches one of the available options
        boolean found = SelectUtils.matchValue(getFacesContext(),
                                               this,
                                               value,
                                               new SelectItemsIterator(contextthis),
                                               getConverter());
        boolean isNoSelection = SelectUtils.valueIsNoSelectionOption(getFacesContext(),
                                               this,
                                               value,
                                               new SelectItemsIterator(contextthis),
                                               getConverter());
        // Enqueue an error message if an invalid value was specified
        if ((!found) || 
            (isRequired() && isNoSelection)) {
            FacesMessage message =
                MessageFactory.getMessage(context,
                     MessageFactory.getLabel(contextthis));
            context.addMessage(getClientId(context), message);
            setValid(false);
        }
        
    }
New to GrepCode? Check out our FAQ X