org.apache.ambari.server.orm

Class TransactionalLocks

java.lang.Object

org.apache.ambari.server.orm.TransactionalLocks

public class TransactionalLocks
extends Object

The TransactionalLocks class is used to manage the locks associated with each TransactionalLock.LockArea. It's a singlegon that shoudl always be injected.

Method Summary

Modifier and Type	Method and Description
ReadWriteLock	getLock(TransactionalLock.LockArea lockArea) Gets a lock for the specified lock area.

Methods inherited from class java.lang.Object

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

Method Detail

getLock

public ReadWriteLock getLock(TransactionalLock.LockArea lockArea)

Gets a lock for the specified lock area. There is a 1:1 relationship between a lock area and a lock.

If the TransactionalLock.LockArea is not enabled, then this will return an empty Lock implementation which doesn't actually lock anything.

Parameters:

lockArea - the lock area to get the lock for (not null).

Returns:

the lock to use for the specified lock area (never null).