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EE4J Compatible Implementation for Jakarta Faces API
/*
* 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 com.sun.faces.application.applicationimpl.events;
import static com.sun.faces.util.Util.coalesce;
import javax.faces.event.SystemEvent;
import com.sun.faces.util.Cache;
import com.sun.faces.util.Cache.Factory;
/**
* Simple wrapper class for application level SystemEvents. It provides the structure to map a
* single SystemEvent to multiple sources which are represented by SourceInfo
* instances.
*/
public class SystemEventInfo {
private Cache, EventInfo> cache = new Cache<>(new Factory, EventInfo>() {
@Override
public EventInfo newInstance(Class arg) throws InterruptedException {
return new EventInfo(systemEvent, arg);
}
});
private Class systemEvent;
// -------------------------------------------------------- Constructors
public SystemEventInfo(Class systemEvent) {
this.systemEvent = systemEvent;
}
// ------------------------------------------------------ Public Methods
public EventInfo getEventInfo(Class source) {
return cache.get(coalesce(source, Void.class));
}
}