uisavestate.java

一个使用struts+hibernate+spring开发的完的网站源代码。

/*
 * Copyright 2004 The Apache Software Foundation.
 * 
 * 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.apache.myfaces.custom.savestate;

import javax.faces.component.UIParameter;
import javax.faces.context.FacesContext;
import javax.faces.el.ValueBinding;

/**
 * This component defines a model value (via the "value" attribute),
 * of which the state has to be saved and restored by the StateRenderer.
 * @author Manfred Geiler (latest modification by $Author: matze $)
 * @version $Revision: 1.3 $ $Date: 2004/10/13 11:50:57 $
 */
public class UISaveState
    extends UIParameter
{
    public Object saveState(FacesContext context)
    {
        Object values[] = new Object[2];
        values[0] = super.saveState(context);
        values[1] = getValue();
        return ((Object) (values));
    }

    public void restoreState(FacesContext context, Object state)
    {
        Object values[] = (Object[])state;
        super.restoreState(context, values[0]);
        Object value = values[1];
        ValueBinding vb = getValueBinding("value");
        if (vb != null)
        {
            vb.setValue(context, value);
        }
    }

    //------------------ GENERATED CODE BEGIN (do not modify!) --------------------

    public static final String COMPONENT_TYPE = "org.apache.myfaces.SaveState";
    public static final String COMPONENT_FAMILY = "javax.faces.Parameter";


    public UISaveState()
    {
    }

    public String getFamily()
    {
        return COMPONENT_FAMILY;
    }


    //------------------ GENERATED CODE END ---------------------------------------
}