Package org.eclipse.jetty.util.thread

Class Locker

java.lang.Object

org.eclipse.jetty.util.thread.Locker

public class Locker
extends Object

Convenience auto closeable ReentrantLock wrapper.

 try (Locker.Lock lock = locker.lock())
 {
   // something
 }
 

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
class	Locker.Lock	The unlocker object that unlocks when it is closed.
class	Locker.UnLock	Deprecated.

Field Summary

Fields

Modifier and Type	Field	Description
private final ReentrantLock	_lock
private final Locker.Lock	_unlock

Constructor Summary

Constructors

Constructor	Description
Locker()

Method Summary

Modifier and Type	Method	Description
boolean	isLocked()
Locker.Lock	lock()	Acquires the lock.
Locker.Lock	lockIfNotHeld()	Deprecated. use lock() instead
Condition	newCondition()

Methods inherited from class java.lang.Object

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

Field Details

_lock

private final ReentrantLock _lock

_unlock

private final Locker.Lock _unlock

Constructor Details

Locker

public Locker()

Method Details

lock

public Locker.Lock lock()

Acquires the lock.

Returns:

the lock to unlock

lockIfNotHeld

@Deprecated
public Locker.Lock lockIfNotHeld()

Deprecated.

use lock() instead

Returns:

the lock to unlock

isLocked

public boolean isLocked()

Returns:

whether this lock has been acquired

newCondition

public Condition newCondition()

Returns:

a Condition associated with this lock