org.omnifaces.cdi.viewscope.ViewScopeStorageInViewState Maven / Gradle / Ivy
Go to download
Show more of this group Show more artifacts with this name
Show all versions of omnifaces Show documentation
Show all versions of omnifaces Show documentation
Jakarta Faces 3.0+ utility library
/*
* 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.viewscope;
import static org.omnifaces.util.Faces.getViewRoot;
import java.util.Map;
import java.util.UUID;
import jakarta.enterprise.context.Dependent;
import jakarta.faces.component.UIViewRoot;
import org.omnifaces.cdi.BeanStorage;
import org.omnifaces.cdi.ViewScoped;
/**
* Stores view scoped bean instances in JSF view state itself.
*
* @author Bauke Scholtz
* @see ViewScoped
* @see ViewScopeManager
* @since 2.6
*/
@Dependent // This class is supposed to be entirely stateless.
public class ViewScopeStorageInViewState implements ViewScopeStorage {
// Actions --------------------------------------------------------------------------------------------------------
@Override
public UUID getBeanStorageId() {
return (UUID) getViewRoot().getAttributes().get(getClass().getName());
}
@Override
public BeanStorage getBeanStorage(UUID id) {
return (BeanStorage) getViewRoot().getAttributes().get(id.toString());
}
@Override
public void setBeanStorage(UUID beanStorageId, BeanStorage beanStorage) {
UIViewRoot viewRoot = getViewRoot();
if (!viewRoot.initialStateMarked()) {
viewRoot.markInitialState(); // Forces JSF to start recording changes in view state.
}
Map viewState = viewRoot.getAttributes();
viewState.put(getClass().getName(), beanStorageId);
viewState.put(beanStorageId.toString(), beanStorage);
}
}