/*
 * 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.jsecurity.session.mgt;

/**
 * Interface that should be implemented by classes that can control validating sessions on a regular
 * basis.  This interface is used as a delegate for session validation by the {@link DefaultSessionManager}
 *
 * @author Jeremy Haile
 * @see DefaultSessionManager#setSessionValidationScheduler(SessionValidationScheduler)
 * @since 0.1
 */
public interface SessionValidationScheduler {

    /**
     * Indicates that this Scheduler has been started - not that it is currently actively validating sessions.
     *
     * @return
     */
    boolean isRunning();

    /**
     * Starts the session validation job.
     */
    void startSessionValidation();

    /**
     * Stops the session validation job.
     */
    void stopSessionValidation();

}