# Uses of Interface
java.util.concurrent.locks.Condition

Packages that use Condition
Package
Description
java.util.concurrent.locks
Interfaces and classes providing a framework for locking and waiting for conditions that is distinct from built-in synchronization and monitors.

## Uses of Condition in java.util.concurrent.locks

Classes in java.util.concurrent.locks that implement Condition
Modifier and Type
Class
Description
`class`
`AbstractQueuedLongSynchronizer.ConditionObject`
Condition implementation for a `AbstractQueuedLongSynchronizer` serving as the basis of a `Lock` implementation.
`class`
`AbstractQueuedSynchronizer.ConditionObject`
Condition implementation for a `AbstractQueuedSynchronizer` serving as the basis of a `Lock` implementation.
Methods in java.util.concurrent.locks that return Condition
Modifier and Type
Method
Description
`Condition`
Lock.`newCondition()`
Returns a new `Condition` instance that is bound to this `Lock` instance.
`Condition`
ReentrantLock.`newCondition()`
Returns a `Condition` instance for use with this `Lock` instance.
`Condition`
ReentrantReadWriteLock.ReadLock.`newCondition()`
Throws `UnsupportedOperationException` because `ReadLocks` do not support conditions.
`Condition`
ReentrantReadWriteLock.WriteLock.`newCondition()`
Returns a `Condition` instance for use with this `Lock` instance.
Methods in java.util.concurrent.locks with parameters of type Condition
Modifier and Type
Method
Description
`protected Collection<Thread>`
ReentrantLock.`getWaitingThreads​(Condition condition)`
Returns a collection containing those threads that may be waiting on the given condition associated with this lock.
`protected Collection<Thread>`
ReentrantReadWriteLock.`getWaitingThreads​(Condition condition)`
Returns a collection containing those threads that may be waiting on the given condition associated with the write lock.
`int`
ReentrantLock.`getWaitQueueLength​(Condition condition)`
Returns an estimate of the number of threads waiting on the given condition associated with this lock.
`int`
ReentrantReadWriteLock.`getWaitQueueLength​(Condition condition)`
Returns an estimate of the number of threads waiting on the given condition associated with the write lock.
`boolean`
ReentrantLock.`hasWaiters​(Condition condition)`
Queries whether any threads are waiting on the given condition associated with this lock.
`boolean`
ReentrantReadWriteLock.`hasWaiters​(Condition condition)`
Queries whether any threads are waiting on the given condition associated with the write lock.