Package org.apache.solr.update

Class UpdateLocks

java.lang.Object

org.apache.solr.update.UpdateLocks

public class UpdateLocks
extends Object

Locks associated with updates in connection with the UpdateLog.

NOTE: This API is for internal purposes only and might change in incompatible ways in the next release.

Constructor Summary

Constructors

Constructor	Description
UpdateLocks(long docLockTimeoutMs)

Method Summary

Modifier and Type	Method	Description
void	blockUpdates()
void	lockForUpdate()
<R> R	runWithLock(org.apache.lucene.util.BytesRef id, IOFunction<Condition,R> function)	Acquires a lock for the given doc ID, executes the function, and releases the lock.
void	unblockUpdates()
void	unlockForUpdate()

Methods inherited from class java.lang.Object

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

Constructor Details

UpdateLocks

public UpdateLocks(long docLockTimeoutMs)

Method Details

runWithLock

public <R> R runWithLock(org.apache.lucene.util.BytesRef id,
 IOFunction<Condition,R> function)
                  throws IOException

Acquires a lock for the given doc ID, executes the function, and releases the lock. The provided Condition can be used for wait/notify control. The per-doc locking is needed indirectly due to SolrCloud's internal out-of-order versioned update design.

Throws:

IOException

lockForUpdate

public void lockForUpdate()

unlockForUpdate

public void unlockForUpdate()

blockUpdates

public void blockUpdates()

unblockUpdates

public void unblockUpdates()