Package org.apache.solr.cloud

Class ConfigSetApiLockFactory

java.lang.Object

org.apache.solr.cloud.ConfigSetApiLockFactory

public class ConfigSetApiLockFactory
extends Object

This class implements a higher level locking abstraction for the Config Set API using lower level read and write locks.

Constructor Summary

Constructors

Constructor	Description
ConfigSetApiLockFactory(DistributedConfigSetLockFactory lockFactory)

Method Summary

Modifier and Type	Method	Description
DistributedMultiLock	createConfigSetApiLock(String configSetName, String baseConfigSetName)	For the CollectionParams.LockLevel of the passed action, obtains the required locks (if any) and returns.

Methods inherited from class java.lang.Object

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

Constructor Details

ConfigSetApiLockFactory

public ConfigSetApiLockFactory(DistributedConfigSetLockFactory lockFactory)

Method Details

createConfigSetApiLock

public DistributedMultiLock createConfigSetApiLock(String configSetName,
 String baseConfigSetName)

For the CollectionParams.LockLevel of the passed action, obtains the required locks (if any) and returns.

This method obtains a write lock on configSetName as well as (when not null), a read lock on baseConfigSetName.

Returns:

a lock that once DistributedMultiLock.isAcquired() guarantees the corresponding Config Set API command can execute safely. The returned lock MUST be DistributedMultiLock.release() no matter what once no longer needed as otherwise it would prevent other threads from locking.