Constructor Detail

• UpdateLockingStrategy

  public UpdateLockingStrategy(Lockable lockable,
                       LockMode lockMode)

  Construct a locking strategy based on SQL UPDATE statements.

  Parameters:

  lockable - The metadata for the entity to be locked.

  lockMode - Indictates the type of lock to be acquired. Note that read-locks are not valid for this strategy.

Method Detail

• 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 locked

  version - 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 indefinitely

  session - 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)

• generateLockString

  protected String generateLockString()

• getLockMode

  protected LockMode getLockMode()