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 /*
  * $Id: ValueHolder.java,v 1.19 2007/01/29 07:56:02 rlubke Exp $
  */
 
 /*
  * The contents of this file are subject to the terms
  * of the Common Development and Distribution License
  * (the License). You may not use this file except in
  * compliance with the License.
 * 
 * You can obtain a copy of the License at
 * https://javaserverfaces.dev.java.net/CDDL.html or
 * legal/CDDLv1.0.txt. 
 * See the License for the specific language governing
 * permission and limitations under the License.
 * 
 * When distributing Covered Code, include this CDDL
 * Header Notice in each file and include the License file
 * at legal/CDDLv1.0.txt.    
 * If applicable, add the following below the CDDL Header,
 * with the fields enclosed by brackets [] replaced by
 * your own identifying information:
 * "Portions Copyrighted [year] [name of copyright owner]"
 * 
 * [Name of File] [ver.__] [Date]
 * 
 * Copyright 2005 Sun Microsystems Inc. All Rights Reserved
 */
package javax.faces.component;

ValueHolder is an interface that may be implemented by any concrete UIComponent that wishes to support a local value, as well as access data in the model tier via a value expression, and support conversion between String and the model tier data's native data type.

public interface ValueHolder {
    // -------------------------------------------------------------- Properties

    

Return the local value of this UIComponent (if any), without evaluating any associated javax.el.ValueExpression.

    public Object getLocalValue();


    

Gets the value of this UIComponent. First, consult the local value property of this component. If non-null return it. If null, see if we have a javax.el.ValueExpression for the value property. If so, return the result of evaluating the property, otherwise return null. Note that because the specification for UIComponent.setValueBinding(java.lang.String,javax.faces.el.ValueBinding) requires a call through to UIComponent.setValueExpression(java.lang.String,javax.el.ValueExpression), legacy tags will continue to work.

    public Object getValue();


    

Set the value of this UIComponent (if any).

Parameters:
value The new local value
    public void setValue(Object value);



    

Return the javax.faces.convert.Converter (if any) that is registered for this UIComponent.

    public Converter getConverter();


    

Set the javax.faces.convert.Converter (if any) that is registered for this UIComponent.

Parameters:
converter New javax.faces.convert.Converter (or null)
    public void setConverter(Converter converter);
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