OptimisticLockingStrategy (hibernate-core JavaDocs)

java.lang.Object
- org.hibernate.dialect.lock.OptimisticLockingStrategy

All Implemented Interfaces:

LockingStrategy
```
public class OptimisticLockingStrategy
extends java.lang.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

Constructor Summary

Constructors
Constructor Description

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

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`protected LockMode`	`getLockMode()`
`void`	`lock(java.io.Serializable id, java.lang.Object version, java.lang.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

- Constructor Detail
  - OptimisticLockingStrategy
```
public OptimisticLockingStrategy(Lockable lockable,
                                 LockMode lockMode)
```
    Construct locking strategy.
    
    Parameters:
    
    lockable - The metadata for the entity to be locked.
    
    lockMode - Indicates the type of lock to be acquired.
- Method Detail
  - lock
```
public void lock(java.io.Serializable id,
                 java.lang.Object version,
                 java.lang.Object object,
                 int timeout,
                 SharedSessionContractImplementor session)
```
    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
  - getLockMode
```
protected LockMode getLockMode()
```