/*
 * Copyright (c) 1998, 2019 Oracle and/or its affiliates. All rights reserved.
 *
 * 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,
 * or the Eclipse Distribution License v. 1.0 which is available at
 * http://www.eclipse.org/org/documents/edl-v10.php.
 *
 * SPDX-License-Identifier: EPL-2.0 OR BSD-3-Clause
 */

// Contributors:
//     Oracle - initial API and implementation from Oracle TopLink
package org.eclipse.persistence.transaction;

import org.eclipse.persistence.internal.sessions.AbstractSession;
import org.eclipse.persistence.internal.sessions.UnitOfWorkImpl;

/**
 * <p>
 * <b>Purpose</b>: Generate synchronization listener objects of the appropriate type.
 * <p>
 * <b>Description</b>: This interface will be used by the AbstractTransactionController
 * to obtain a listener that it will register against the external transaction in order
 * to synchronize the unit of work.
 * All new listener classes should implement this interface.
 *
 * @see AbstractSynchronizationListener
 */
public interface SynchronizationListenerFactory {

    /**
     * INTERNAL:
     * Create and return the synchronization listener object that can be registered
     * to receive transaction notification callbacks. The type of synchronization object
     * that gets returned will be dependent upon the transaction system
     */
    AbstractSynchronizationListener newSynchronizationListener(UnitOfWorkImpl unitOfWork, AbstractSession session, Object transaction, AbstractTransactionController controller);
}