name.martingeisse.wicket.util.KeepSessionAliveBehavior.java Source code

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Here is the source code for name.martingeisse.wicket.util.KeepSessionAliveBehavior.java

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/**
 * Copyright (c) 2010 Martin Geisse
 *
 * This file is distributed under the terms of the MIT license.
 */

package name.martingeisse.wicket.util;

import org.apache.wicket.ajax.AbstractAjaxTimerBehavior;
import org.apache.wicket.ajax.AjaxRequestTarget;
import org.apache.wicket.util.time.Duration;

/**
 * Attaching this behavior to a component results in AJAX calls being made every 10 minutes
 * (or a user-defined interval) to keep the server-side session alive.
 */
public class KeepSessionAliveBehavior extends AbstractAjaxTimerBehavior {

    /**
     * Constructor.
     */
    public KeepSessionAliveBehavior() {
        super(Duration.minutes(10));
    }

    /**
     * Constructor.
     * @param minutes the duration in minutes
     */
    public KeepSessionAliveBehavior(int minutes) {
        super(Duration.minutes(minutes));
    }

    /**
     * Constructor.
     * @param duration the duration
     */
    public KeepSessionAliveBehavior(Duration duration) {
        super(duration);
    }

    /* (non-Javadoc)
     * @see org.apache.wicket.ajax.AbstractAjaxTimerBehavior#onTimer(org.apache.wicket.ajax.AjaxRequestTarget)
     */
    @Override
    protected void onTimer(AjaxRequestTarget target) {
    }

}