javax.faces.component.behavior.Behavior Maven / Gradle / Ivy
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/*
* Copyright (c) 1997, 2018 Oracle and/or its affiliates. All rights reserved.
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License v. 2.0, which is available at
* http://www.eclipse.org/legal/epl-2.0.
*
* This Source Code may also be made available under the following Secondary
* Licenses when the conditions for such availability set forth in the
* Eclipse Public License v. 2.0 are satisfied: GNU General Public License,
* version 2 with the GNU Classpath Exception, which is available at
* https://www.gnu.org/software/classpath/license.html.
*
* SPDX-License-Identifier: EPL-2.0 OR GPL-2.0 WITH Classpath-exception-2.0
*/
package javax.faces.component.behavior;
import javax.faces.component.UIComponent;
import javax.faces.event.BehaviorEvent;
/**
* The Behavior interface is
* the root API of the component behavior model. Behaviors are objects that
* are attached to {@link UIComponent}s in order to enhance components with
* functionality not explicitly defined by the component implementation itself.
* The component behavior API is intended to support different types of
* behavior contracts, and possibly different types of interactions between
* behaviors and components. The first such contract is the
* {@link ClientBehavior}, which defines a mechanism by which script-producing
* behaviors attach scripts to components for execution on the client. In the
* future other types of behavior contracts may be added.
*
* Like other attached objects (converters, validators) Behavior instances
* are created via the {@link javax.faces.application.Application} object. See
* {@link javax.faces.application.Application#createBehavior} for more details.
*
* @since 2.0
*/
public interface Behavior {
/**
* Broadcast the specified
* {@link BehaviorEvent} to all registered
* event listeners who have expressed an interest in events of this
* type. Listeners are called in the order in which they were
* added.
*
* @param event The {@link BehaviorEvent} to be broadcast
*
* @throws javax.faces.event.AbortProcessingException Signal the JavaServer Faces
* implementation that no further processing on the current event
* should be performed
* @throws IllegalArgumentException if the implementation class
* of this {@link BehaviorEvent} is not supported by this component
* @throws NullPointerException if event is
* null
*
* @since 2.0
*/
public void broadcast(BehaviorEvent event);
}