Package org.hibernate.dialect.lock

Interface LockingStrategy

All Known Implementing Classes:
AbstractSelectLockingStrategy, HSQLDialect.ReadUncommittedLockingStrategy, OptimisticForceIncrementLockingStrategy, OptimisticLockingStrategy, PessimisticForceIncrementLockingStrategy, PessimisticReadSelectLockingStrategy, PessimisticReadUpdateLockingStrategy, PessimisticWriteSelectLockingStrategy, PessimisticWriteUpdateLockingStrategy, SelectLockingStrategy, UpdateLockingStrategy
public interface LockingStrategy
A strategy abstraction for how locks are obtained in the underlying database.

All locking provided implementations assume the underlying database supports (and that the connection is in) at least read-committed transaction isolation. The most glaring exclusion to this is HSQLDB which only offers support for READ_UNCOMMITTED isolation.

Since:
3.2
See Also:

  • Method Summary

    Modifier and Type
    Method
    Description
    void
    lock(Serializable id, Object version, Object object, int timeout, SessionImplementor session)
    Acquire an appropriate type of lock on the underlying data that will endure until the end of the current transaction.

  • Method Details

    • lock

      void lock(Serializable id, Object version, Object object, int timeout, SessionImplementor session) throws StaleObjectStateException, JDBCException
      Acquire an appropriate type of lock on the underlying data that will endure until the end of the current transaction.
      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.