/********************************************************************************
 * Copyright (c) 2015-2020 Contributors to the Eclipse Foundation
 *
 * See the NOTICE file(s) distributed with this work for additional
 * information regarding copyright ownership.
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Public License v. 2.0 which is available at
 * http://www.eclipse.org/legal/epl-2.0.
 *
 * SPDX-License-Identifier: EPL-2.0
 *
 ********************************************************************************/

package org.eclipse.mdm.freetextindexer.control;

/**
 * Listener interface for receiving events on the locking state of
 * {@link DatabaseLockHandler}.
 *
 */
public interface LockListener {

	/**
	 * Invoked when a lock could be obtained.
	 */
	void onLockAcquired();

	/**
	 * Invoked when a lock was lost.
	 */
	void onLockLost();
}