org.omnifaces.cdi.eager.EagerBeansPhaseListener Maven / Gradle / Ivy
/*
* Copyright OmniFaces
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* https://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on
* an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the
* specific language governing permissions and limitations under the License.
*/
package org.omnifaces.cdi.eager;
import static javax.faces.event.PhaseId.RESTORE_VIEW;
import static org.omnifaces.util.Beans.getReference;
import static org.omnifaces.util.FacesLocal.getViewId;
import javax.faces.event.PhaseEvent;
import org.omnifaces.eventlistener.DefaultPhaseListener;
/**
*
* A PhaseListener that instantiates eager request/view beans by JSF view ID.
*
* This instantiates beans relatively late during request processing but at a point that faces context and the view root
* corresponding to the current view ID are available to the bean.
*
* @since 1.8
* @author Arjan Tijms
*
*/
public class EagerBeansPhaseListener extends DefaultPhaseListener {
private static final long serialVersionUID = -7252366571645029385L;
private boolean hasAnyViewIdBeans;
public EagerBeansPhaseListener() {
super(RESTORE_VIEW);
EagerBeansRepository eagerBeansRepository = getReference(EagerBeansRepository.class);
hasAnyViewIdBeans = (eagerBeansRepository != null) && eagerBeansRepository.hasAnyViewIdBeans();
}
@Override
public void afterPhase(PhaseEvent event) {
if (hasAnyViewIdBeans) {
getReference(EagerBeansRepository.class).instantiateByViewID(getViewId(event.getFacesContext()));
}
}
}