org.agrona.concurrent

Class NoOpLock

java.lang.Object

org.agrona.concurrent.NoOpLock

All Implemented Interfaces:

java.util.concurrent.locks.Lock

public final class NoOpLock
extends java.lang.Object
implements java.util.concurrent.locks.Lock

A Lock implementation that is a no operation, i.e. it effectively does nothing.

Useful for effectively eliding a lock in a single threaded environment.

Constructor Summary

Constructors

Constructor and Description
NoOpLock()

Method Summary

Modifier and Type	Method and Description
void	lock() Proceeds as if the lock has been acquired.
void	lockInterruptibly() Proceeds as if the lock has been acquired.
java.util.concurrent.locks.Condition	newCondition() Not supported.
boolean	tryLock() Always succeeds.
boolean	tryLock(long time, java.util.concurrent.TimeUnit unit) Always succeeds.
void	unlock() The lock has never been taken so no effect.

Methods inherited from class java.lang.Object

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

Constructor Detail

NoOpLock

public NoOpLock()

Method Detail

lock

public void lock()

Proceeds as if the lock has been acquired.

Specified by:

lock in interface java.util.concurrent.locks.Lock

lockInterruptibly

public void lockInterruptibly()

Proceeds as if the lock has been acquired.

Specified by:

lockInterruptibly in interface java.util.concurrent.locks.Lock

tryLock

public boolean tryLock()

Always succeeds.

Specified by:

tryLock in interface java.util.concurrent.locks.Lock

Returns:

always true.

tryLock

public boolean tryLock(long time,
                       java.util.concurrent.TimeUnit unit)

Always succeeds.

Specified by:

tryLock in interface java.util.concurrent.locks.Lock

Returns:

always true.

unlock

public void unlock()

The lock has never been taken so no effect.

Specified by:

unlock in interface java.util.concurrent.locks.Lock

newCondition

public java.util.concurrent.locks.Condition newCondition()

Not supported.

Specified by:

newCondition in interface java.util.concurrent.locks.Lock

Returns:

never returns.

Throws:

java.lang.UnsupportedOperationException - always.