tapestry-examples/Vlib/src/java/org/apache/tapestry/vlib/ActivatePage.java

// Copyright 2004, 2005 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.tapestry.vlib;

import org.apache.tapestry.PageRedirectException;
import org.apache.tapestry.event.PageEvent;
import org.apache.tapestry.event.PageValidateListener;
import org.apache.tapestry.vlib.pages.Login;

/**
 * Subclass of {@link org.apache.tapestry.vlib.VlibPage} that implements
 * {@link org.apache.tapestry.vlib.IActivate}. Overrides {@link #pageValidate(PageEvent)}. All
 * subclasses are assumed to require non-anonymous access (regardless of the anonymous-access meta
 * data property).
 * 
 * @author Howard Lewis Ship
 * @since 3.0
 */

public abstract class ActivatePage extends VlibPage implements IActivate, PageValidateListener
{
    public void pageValidate(PageEvent event)
    {
        if (isUserLoggedIn())
            return;

        Login login = getLogin();

        login.setCallback(new ActivateCallback(this));

        throw new PageRedirectException(login);
    }
}