org.hibernate.internal.util.LockModeConverter Maven / Gradle / Ivy
/*
* Hibernate, Relational Persistence for Idiomatic Java
*
* Copyright (c) 2012, Red Hat Inc. or third-party contributors as
* indicated by the @author tags or express copyright attribution
* statements applied by the authors. All third-party contributions are
* distributed under license by Red Hat Inc.
*
* This copyrighted material is made available to anyone wishing to use, modify,
* copy, or redistribute it subject to the terms and conditions of the GNU
* Lesser General Public License, as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License
* for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this distribution; if not, write to:
* Free Software Foundation, Inc.
* 51 Franklin Street, Fifth Floor
* Boston, MA 02110-1301 USA
*/
package org.hibernate.internal.util;
import javax.persistence.LockModeType;
import org.hibernate.AssertionFailure;
import org.hibernate.LockMode;
/**
* Helper to deal with conversions (both directions) between {@link org.hibernate.LockMode} and
* {@link javax.persistence.LockModeType}.
*
* @author Steve Ebersole
*/
public final class LockModeConverter {
private LockModeConverter() {
}
/**
* Convert from the Hibernate specific LockMode to the JPA defined LockModeType.
*
* @param lockMode The Hibernate LockMode.
*
* @return The JPA LockModeType
*/
public static LockModeType convertToLockModeType(LockMode lockMode) {
if ( lockMode == LockMode.NONE ) {
return LockModeType.NONE;
}
else if ( lockMode == LockMode.OPTIMISTIC || lockMode == LockMode.READ ) {
return LockModeType.OPTIMISTIC;
}
else if ( lockMode == LockMode.OPTIMISTIC_FORCE_INCREMENT || lockMode == LockMode.WRITE ) {
return LockModeType.OPTIMISTIC_FORCE_INCREMENT;
}
else if ( lockMode == LockMode.PESSIMISTIC_READ ) {
return LockModeType.PESSIMISTIC_READ;
}
else if ( lockMode == LockMode.PESSIMISTIC_WRITE
|| lockMode == LockMode.UPGRADE
|| lockMode == LockMode.UPGRADE_NOWAIT
|| lockMode == LockMode.UPGRADE_SKIPLOCKED) {
return LockModeType.PESSIMISTIC_WRITE;
}
else if ( lockMode == LockMode.PESSIMISTIC_FORCE_INCREMENT
|| lockMode == LockMode.FORCE ) {
return LockModeType.PESSIMISTIC_FORCE_INCREMENT;
}
throw new AssertionFailure( "unhandled lock mode " + lockMode );
}
/**
* Convert from JPA defined LockModeType to Hibernate specific LockMode.
*
* @param lockMode The JPA LockModeType
*
* @return The Hibernate LockMode.
*/
public static LockMode convertToLockMode(LockModeType lockMode) {
switch ( lockMode ) {
case READ:
case OPTIMISTIC: {
return LockMode.OPTIMISTIC;
}
case OPTIMISTIC_FORCE_INCREMENT:
case WRITE: {
return LockMode.OPTIMISTIC_FORCE_INCREMENT;
}
case PESSIMISTIC_READ: {
return LockMode.PESSIMISTIC_READ;
}
case PESSIMISTIC_WRITE: {
return LockMode.PESSIMISTIC_WRITE;
}
case PESSIMISTIC_FORCE_INCREMENT: {
return LockMode.PESSIMISTIC_FORCE_INCREMENT;
}
case NONE: {
return LockMode.NONE;
}
default: {
throw new AssertionFailure( "Unknown LockModeType: " + lockMode );
}
}
}
}