de.aristaflow.adept2.util.locking

Class ConditionLatch

java.lang.Object

de.aristaflow.adept2.util.locking.ConditionLatch

public class ConditionLatch
extends java.lang.Object

This is similar to a normal CountDownLatch but it uses a wrapped lock for synchronising as well as a new corresponding condition for signalling. This allows to have a latch that releases a lock when waiting for the latch.

Field Summary

Fields

Modifier and Type	Field and Description
protected java.util.concurrent.locks.Condition	cond The condition on which to wait for the latch.
protected long	count The number of releases before this latch releases threads.
protected java.util.concurrent.locks.Lock	lock The lock which to use for synchronising.

Constructor Summary

Constructors

Constructor and Description
ConditionLatch(java.util.concurrent.locks.Lock lock) Creates a new latch with the designated latch and a count of 1.
ConditionLatch(java.util.concurrent.locks.Lock lock, long count) Creates a new latch with the designated latch and the designated count.

Method Summary

Modifier and Type	Method and Description
void	await()
boolean	await(long timeout, java.util.concurrent.TimeUnit unit)
void	countDown()
long	getCount()

Methods inherited from class java.lang.Object

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

Field Detail

lock

protected final java.util.concurrent.locks.Lock lock

The lock which to use for synchronising.

cond

protected final java.util.concurrent.locks.Condition cond

The condition on which to wait for the latch.

count

protected long count

The number of releases before this latch releases threads.

Constructor Detail

ConditionLatch

public ConditionLatch(java.util.concurrent.locks.Lock lock)

Creates a new latch with the designated latch and a count of 1.

Parameters:

lock - The lock with which to synchronise access to this latch.

ConditionLatch

public ConditionLatch(java.util.concurrent.locks.Lock lock,
                      long count)

Creates a new latch with the designated latch and the designated count.

Parameters:

lock - The lock with which to synchronise access to this latch.

count - The number of releases before this latch releases threads.

Method Detail

await

public void await()
           throws java.lang.InterruptedException

Throws:

java.lang.InterruptedException

See Also:

CountDownLatch.await()

await

public boolean await(long timeout,
                     java.util.concurrent.TimeUnit unit)
              throws java.lang.InterruptedException

Throws:

java.lang.InterruptedException

See Also:

CountDownLatch.await(long, TimeUnit)

countDown

public void countDown()

See Also:

CountDownLatch.countDown()

getCount

public long getCount()

See Also:

CountDownLatch.getCount()