org.joinfaces.annotations.ViewScope Maven / Gradle / Ivy
/*
* Copyright 2016-2016 the original author or authors.
*
* 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
*
* http://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.joinfaces.annotations;
import java.util.Map;
import javax.faces.context.FacesContext;
import org.springframework.beans.factory.ObjectFactory;
import org.springframework.beans.factory.config.Scope;
import org.springframework.web.context.request.RequestAttributes;
import org.springframework.web.context.request.RequestContextHolder;
/**
* Implementation of view scope.
* @author Marcelo Fernandes
*/
public class ViewScope implements Scope {
@Override
public Object get(String name, ObjectFactory objectFactory) {
Map viewMap = FacesContext.getCurrentInstance().getViewRoot().getViewMap();
if (viewMap.containsKey(name)) {
return viewMap.get(name);
}
else {
Object object = objectFactory.getObject();
viewMap.put(name, object);
return object;
}
}
@Override
public Object remove(String name) {
return FacesContext.getCurrentInstance().getViewRoot().getViewMap().remove(name);
}
@Override
public String getConversationId() {
return null;
}
@Override
public void registerDestructionCallback(String name, Runnable callback) {
//Not supported
}
@Override
public Object resolveContextualObject(String key) {
RequestAttributes attributes = RequestContextHolder.currentRequestAttributes();
return attributes.resolveReference(key);
}
}