nostatemanager.java

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/*
 * Copyright 2002-2004 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 de.mindmatters.faces.application;

import javax.faces.application.StateManager;
import javax.faces.component.UIViewRoot;
import javax.faces.context.FacesContext;

/**
 * <strong>NoStateManager</strong> does <strong>not</strong> save the state of
 * the component tree and will thus not restore the component state.
 * 
 * <p>
 * This {@link StateManager} will work in most cases and should be used to
 * eliminate any state foot print on the client.
 * </p>
 * 
 * @author Andreas Kuhrwahl
 * 
 */
public final class NoStateManager extends AbstractViewBuildingStateManager {

    /**
     * Creates an OptimizedStateManager with the given state manager
     * <code>delegate</code> of the underlying JSF implementation.
     * 
     * @param delegate
     *            the original state manager of the underlying JSF
     *            implementation
     */
    public NoStateManager(final StateManager delegate) {
        super(delegate);
    }

    /**
     * {@inheritDoc}
     */
    protected Object getComponentStateToSave(final FacesContext context) {
        return null;
    }

    /**
     * {@inheritDoc}
     */
    protected void restoreComponentState(final FacesContext context,
            final UIViewRoot viewRoot, final String renderKitId) {
    }

}