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 * Portions Copyright Apache Software Foundation.
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 * and Distribution License("CDDL") (collectively, the "License").  You
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package org.apache.catalina;


import java.util.EventObject;


/**
 * General event for notifying listeners of significant changes on a Session.
 *
 * @author Craig R. McClanahan
 * @version $Revision: 1.3 $ $Date: 2007/05/05 05:31:51 $
 */

public final class SessionEvent
    extends EventObject {


    /**
     * The event data associated with this event.
     */
    private Object data = null;


    /**
     * The Session on which this event occurred.
     */
    private Session session = null;


    /**
     * The event type this instance represents.
     */
    private String type = null;


    /**
     * Construct a new SessionEvent with the specified parameters.
     *
     * @param session Session on which this event occurred
     * @param type Event type
     * @param data Event data
     */
    public SessionEvent(Session session, String type, Object data) {

        super(session);
        this.session = session;
        this.type = type;
        this.data = data;

    }


    /**
     * Return the event data of this event.
     */
    public Object getData() {

        return (this.data);

    }


    /**
     * Return the Session on which this event occurred.
     */
    public Session getSession() {

        return (this.session);

    }


    /**
     * Return the event type of this event.
     */
    public String getType() {

        return (this.type);

    }


    /**
     * Return a string representation of this event.
     */
    public String toString() {

        return ("SessionEvent['" + getSession() + "','" +
                getType() + "']");

    }


}