org.wicketstuff.stateless.behaviors.StatelessAjaxEventBehavior.java Source code

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Here is the source code for org.wicketstuff.stateless.behaviors.StatelessAjaxEventBehavior.java

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/**
 *  Licensed to the Apache Software Foundation (ASF) under one or more
 *  contributor license agreements.  See the NOTICE file distributed with
 *  this work for additional information regarding copyright ownership.
 *  The ASF licenses this file to You 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.wicketstuff.stateless.behaviors;

import org.apache.wicket.Component;
import org.apache.wicket.ajax.AjaxEventBehavior;
import org.apache.wicket.request.Url;
import org.apache.wicket.request.mapper.parameter.PageParameters;
import org.wicketstuff.stateless.StatelessEncoder;

/**
 * Stateless version of AjaxEventBehavior
 * 
 * @author Andrea Del Bene
 *
 */
public abstract class StatelessAjaxEventBehavior extends AjaxEventBehavior {
    private static final long serialVersionUID = 2387070289758596955L;

    public StatelessAjaxEventBehavior(final String event) {
        super(event);
    }

    @Override
    protected void onBind() {
        super.onBind();

        //generate behavior id
        getComponent().getBehaviorId(this);
    }

    @Override
    public CharSequence getCallbackUrl() {
        final Url url = Url.parse(super.getCallbackUrl().toString());
        final PageParameters params = getPageParameters();

        return StatelessEncoder.mergeParameters(url, params).toString();
    }

    protected abstract PageParameters getPageParameters();

    /**
     * @return always {@literal true}
     */
    @Override
    public boolean getStatelessHint(final Component component) {
        return true;
    }
}