Module org.apache.jena.core

Package org.apache.jena.shared

Class LockMRPlusSW

java.lang.Object

java.util.concurrent.locks.ReentrantLock

org.apache.jena.shared.LockMRPlusSW

All Implemented Interfaces:

Serializable, Lock, Lock

public class LockMRPlusSW
extends ReentrantLock
implements Lock

A multiple-reader plus single-writer lock. This lock permits readers to obtain their locks under any condition, but allows only one writer at a time. Writers can acquire a read lock, and readers can acquire the write lock.

See Also:

• Serialized Form

Field Summary

Fields inherited from interface org.apache.jena.shared.Lock

READ, WRITE

Constructor Summary

Constructors

Constructor	Description
LockMRPlusSW()

Method Summary

Modifier and Type	Method	Description
void	enterCriticalSection(boolean readLockRequested)	Enter a critical section.
void	leaveCriticalSection()	Leave a critical section.

Methods inherited from class java.util.concurrent.locks.ReentrantLock

getHoldCount, getQueueLength, getWaitQueueLength, hasQueuedThread, hasQueuedThreads, hasWaiters, isFair, isHeldByCurrentThread, isLocked, lock, lockInterruptibly, newCondition, toString, tryLock, tryLock, unlock

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Details

LockMRPlusSW

public LockMRPlusSW()

Method Details

enterCriticalSection

public void enterCriticalSection(boolean readLockRequested)

Description copied from interface: Lock

Enter a critical section. The application must call leaveCriticialSection.

Specified by:

enterCriticalSection in interface Lock

Parameters:

readLockRequested - true implies a read lock, false implies write lock.

See Also:

• Lock.leaveCriticalSection()

leaveCriticalSection

public void leaveCriticalSection()

Description copied from interface: Lock

Leave a critical section. Releases the lock form the matching enterCriticalSection

Specified by:

leaveCriticalSection in interface Lock

See Also:

• Lock.enterCriticalSection(boolean)