Package org.infinispan.lock.impl.lock

Class ClusteredLockImpl

java.lang.Object

org.infinispan.lock.impl.lock.ClusteredLockImpl

All Implemented Interfaces:

org.infinispan.lock.api.ClusteredLock

public class ClusteredLockImpl
extends Object
implements org.infinispan.lock.api.ClusteredLock

Implements ClusteredLock interface.

This lock implements a non reentrant where the ownership is OwnershipLevel.NODE.

Non reentrant lock, Owner Node

Originator of the requests is the Address of the EmbeddedCacheManager When a lock is acquired by a Node, it cannot be re-acquired, even by the actual node til the lock is released. The lock can be unlocked only by the lock owner, in this case the node lock method does not expire til the lock is acquired, so this can cause thread starvation in the actual implementation

Partition handling

Since:

9.2

Author:

Katia Aresti, karesti@redhat.com

See Also:

Infinispan documentation

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
class	ClusteredLockImpl.LockRequestHolder
class	ClusteredLockImpl.RequestHolder<E>
class	ClusteredLockImpl.TryLockRequestHolder

Constructor Summary

Constructors

Constructor	Description
ClusteredLockImpl(String name, ClusteredLockKey lockKey, org.infinispan.AdvancedCache<ClusteredLockKey,ClusteredLockValue> clusteredLockCache, EmbeddedClusteredLockManager clusteredLockManager)

Method Summary

Modifier and Type	Method	Description
String	getName()
Object	getOriginator()
CompletableFuture<Boolean>	isLocked()
CompletableFuture<Boolean>	isLockedByMe()
CompletableFuture<Void>	lock()
void	stop()
String	toString()
CompletableFuture<Boolean>	tryLock()
CompletableFuture<Boolean>	tryLock(long time, TimeUnit unit)
CompletableFuture<Void>	unlock()

Methods inherited from class java.lang.Object

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

Constructor Detail

ClusteredLockImpl

public ClusteredLockImpl(String name,
                         ClusteredLockKey lockKey,
                         org.infinispan.AdvancedCache<ClusteredLockKey,ClusteredLockValue> clusteredLockCache,
                         EmbeddedClusteredLockManager clusteredLockManager)

Method Detail

stop

public void stop()

lock

public CompletableFuture<Void> lock()

Specified by:

lock in interface org.infinispan.lock.api.ClusteredLock

tryLock

public CompletableFuture<Boolean> tryLock()

Specified by:

tryLock in interface org.infinispan.lock.api.ClusteredLock

tryLock

public CompletableFuture<Boolean> tryLock(long time,
                                          TimeUnit unit)

Specified by:

tryLock in interface org.infinispan.lock.api.ClusteredLock

unlock

public CompletableFuture<Void> unlock()

Specified by:

unlock in interface org.infinispan.lock.api.ClusteredLock

isLocked

public CompletableFuture<Boolean> isLocked()

Specified by:

isLocked in interface org.infinispan.lock.api.ClusteredLock

isLockedByMe

public CompletableFuture<Boolean> isLockedByMe()

Specified by:

isLockedByMe in interface org.infinispan.lock.api.ClusteredLock

getName

public String getName()

getOriginator

public Object getOriginator()

toString

public String toString()

Overrides:

toString in class Object