org.hibernate.dialect.lock
Class OptimisticLockingStrategy
java.lang.Object
org.hibernate.dialect.lock.OptimisticLockingStrategy
- All Implemented Interfaces:
- LockingStrategy
public class OptimisticLockingStrategy
- extends Object
- implements LockingStrategy
An optimistic locking strategy that verifies that the version hasn't changed (prior to transaction commit).
This strategy is valid for LockMode.OPTIMISTIC
- Since:
- 3.5
- Author:
- Scott Marlow
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
OptimisticLockingStrategy
public OptimisticLockingStrategy(Lockable lockable,
LockMode lockMode)
- Construct locking strategy.
- Parameters:
lockable
- The metadata for the entity to be locked.lockMode
- Indictates the type of lock to be acquired.
lock
public void lock(Serializable id,
Object version,
Object object,
int timeout,
SessionImplementor session)
throws StaleObjectStateException,
JDBCException
- Description copied from interface:
LockingStrategy
- Acquire an appropriate type of lock on the underlying data that will
endure until the end of the current transaction.
- Specified by:
lock
in interface LockingStrategy
- Parameters:
id
- The id of the row to be lockedversion
- The current version (or null if not versioned)object
- The object logically being locked (currently not used)timeout
- timeout in milliseconds, 0 = no wait, -1 = wait indefinitelysession
- The session from which the lock request originated
- Throws:
StaleObjectStateException
- Indicates an optimistic lock failure
as part of acquiring the requested database lock.
JDBCException
- Indicates errors from the JDBC driver.- See Also:
LockingStrategy.lock(java.io.Serializable, java.lang.Object, java.lang.Object, int, org.hibernate.engine.SessionImplementor)
getLockMode
protected LockMode getLockMode()
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