OptimisticLockingStrategy (Hibernate Core Aggregator 3.6.10.Final API)

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

Constructor Summary

Constructors
Constructor and Description

OptimisticLockingStrategy(Lockable lockable, LockMode lockMode)
Construct locking strategy.

Constructors
Constructor and Description
`OptimisticLockingStrategy(Lockable lockable, LockMode lockMode)` Construct locking strategy.

Method Summary

Methods
Modifier and Type	Method and Description
`protected LockMode`	`getLockMode()`
`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.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - 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.
- 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)
  - getLockMode
```
protected LockMode getLockMode()
```

Class OptimisticLockingStrategy

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Constructor Detail

OptimisticLockingStrategy

Method Detail

lock

getLockMode