Package org.infinispan.configuration.cache

Class LockingConfiguration

java.lang.Object

org.infinispan.commons.configuration.attributes.ConfigurationElement<LockingConfiguration>

org.infinispan.configuration.cache.LockingConfiguration

All Implemented Interfaces:

Matchable<LockingConfiguration>, Updatable<LockingConfiguration>

public class LockingConfiguration
extends ConfigurationElement<LockingConfiguration>

Defines the local, in-VM locking and concurrency characteristics of the cache.

Author:

pmuir

Field Summary

Fields

Modifier and Type	Field	Description
static final AttributeDefinition<Integer>	CONCURRENCY_LEVEL
static final AttributeDefinition<IsolationLevel>	ISOLATION_LEVEL
static final AttributeDefinition<Long>	LOCK_ACQUISITION_TIMEOUT
static final AttributeDefinition<Boolean>	USE_LOCK_STRIPING

Fields inherited from class org.infinispan.commons.configuration.attributes.ConfigurationElement

attributes, CHILDLESS, children, element, repeated

Method Summary

Modifier and Type	Method	Description
int	concurrencyLevel()	Concurrency level for lock containers.
IsolationLevel	isolationLevel()	Cache isolation level.
long	lockAcquisitionTimeout()	Maximum time to attempt a particular lock acquisition
LockingConfiguration	lockAcquisitionTimeout(long timeout)
boolean	useLockStriping()	If true, a pool of shared locks is maintained for all entries that need to be locked.

Methods inherited from class org.infinispan.commons.configuration.attributes.ConfigurationElement

attributes, child, children, children, elementName, equals, findAttribute, hashCode, isModified, list, matches, toString, update, validateUpdate, write

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Details

CONCURRENCY_LEVEL

public static final AttributeDefinition<Integer> CONCURRENCY_LEVEL

ISOLATION_LEVEL

public static final AttributeDefinition<IsolationLevel> ISOLATION_LEVEL

LOCK_ACQUISITION_TIMEOUT

public static final AttributeDefinition<Long> LOCK_ACQUISITION_TIMEOUT

USE_LOCK_STRIPING

public static final AttributeDefinition<Boolean> USE_LOCK_STRIPING

Method Details

concurrencyLevel

public int concurrencyLevel()

Concurrency level for lock containers. Adjust this value according to the number of concurrent threads interacting with Infinispan. Similar to the concurrencyLevel tuning parameter seen in the JDK's ConcurrentHashMap.

isolationLevel

public IsolationLevel isolationLevel()

Cache isolation level. Infinispan only supports READ_COMMITTED or REPEATABLE_READ isolation levels. See http://en.wikipedia.org/wiki/Isolation_level for a discussion on isolation levels.

lockAcquisitionTimeout

public long lockAcquisitionTimeout()

Maximum time to attempt a particular lock acquisition

lockAcquisitionTimeout

public LockingConfiguration lockAcquisitionTimeout(long timeout)

useLockStriping

public boolean useLockStriping()

If true, a pool of shared locks is maintained for all entries that need to be locked. Otherwise, a lock is created per entry in the cache. Lock striping helps control memory footprint but may reduce concurrency in the system.