Package org.hibernate.dialect.lock.internal

Class SqlAstBasedLockingStrategy

java.lang.Object

org.hibernate.dialect.lock.internal.SqlAstBasedLockingStrategy

All Implemented Interfaces:

LockingStrategy

public class SqlAstBasedLockingStrategy
extends Object
implements LockingStrategy

LockingStrategy implementation which uses Hibernate's SQL AST mechanism for applying pessimistic locks.

Constructor Summary

Constructors

Constructor	Description
SqlAstBasedLockingStrategy(EntityPersister lockable, LockMode lockMode, Locking.Scope lockScope)

Method Summary

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

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface org.hibernate.dialect.lock.LockingStrategy

lock, lock

Constructor Details

SqlAstBasedLockingStrategy

public SqlAstBasedLockingStrategy(EntityPersister lockable,
 LockMode lockMode,
 Locking.Scope lockScope)

Method Details

lock

public void lock(Object id,
 Object version,
 Object object,
 int timeout,
 SharedSessionContractImplementor session)
          throws StaleObjectStateException,
LockingStrategyException

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 inability to locate the database row as part of acquiring the requested lock.

LockingStrategyException - Indicates a failure in the lock attempt