/*******************************************************************************
 * Copyright (c) 2008, 2009 Sun Microsystems. All rights reserved. 
 * 
 * This program and the accompanying materials are made available under the 
 * terms of the Eclipse Public License v1.0 and Eclipse Distribution License v. 1.0 
 * which accompanies this distribution. 
 * The Eclipse Public License is available at http://www.eclipse.org/legal/epl-v10.html
 * and the Eclipse Distribution License is available at 
 * http://www.eclipse.org/org/documents/edl-v10.php.
 * 
 * Contributors:
 *     Linda DeMichiel - Java Persistence 2.0 - Version 2.0 (October 1, 2009)
 *     Specification available from http://jcp.org/en/jsr/detail?id=317
 *
 ******************************************************************************/
package javax.persistence;

/**
 * Thrown by the persistence provider when an pessimistic locking
 * conflict occurs that does not result in transaction rollback. This
 * exception may be thrown as part of an API call, at, flush or at
 * commit time. The current transaction, if one is active, will be not
 * be marked for rollback.
 *
 * @since Java Persistence 2.0
 */
public class LockTimeoutException extends PersistenceException {
    /** The object that caused the exception */
    Object entity;

    /** 
     * Constructs a new <code>LockTimeoutException</code> exception 
     * with <code>null</code> as its detail message.
     */
    public LockTimeoutException() {
        super();
    }

    /** 
     * Constructs a new <code>LockTimeoutException</code> exception 
     * with the specified detail message.
     * @param   message   the detail message.
     */
    public LockTimeoutException(String message) {
        super(message);
    }

    /** 
     * Constructs a new <code>LockTimeoutException</code> exception 
     * with the specified detail message and cause.
     * @param   message   the detail message.
     * @param   cause     the cause.
     */
    public LockTimeoutException(String message, Throwable cause) {
        super(message, cause);
    }

    /** 
     * Constructs a new <code>LockTimeoutException</code> exception 
     * with the specified cause.
     * @param   cause     the cause.
     */
    public LockTimeoutException(Throwable cause) {
        super(cause);
    }

    /** 
     * Constructs a new <code>LockTimeoutException</code> exception 
     * with the specified object.
     * @param   entity     the entity.
     */
    public LockTimeoutException(Object entity) {
        this.entity = entity;
    }

    /** 
     * Constructs a new <code>LockTimeoutException</code> exception 
     * with the specified detail message, cause, and entity.
     * @param   message   the detail message.
     * @param   cause     the cause.
     * @param   entity     the entity.
     */
    public LockTimeoutException(String message, Throwable cause, Object entity) {
        super(message, cause);
        this.entity = entity;
    }
    
    /**
     * Returns the object that caused this exception.
     * @return the entity
     */
    public Object getObject() {
        return this.entity;
    }
}