Class AbstractOwnableSynchronizer
java.lang.Object
java.util.concurrent.locks.AbstractOwnableSynchronizer
- All Implemented Interfaces:
Serializable
- Direct Known Subclasses:
AbstractQueuedLongSynchronizer
,AbstractQueuedSynchronizer
A synchronizer that may be exclusively owned by a thread. This
class provides a basis for creating locks and related synchronizers
that may entail a notion of ownership. The
AbstractOwnableSynchronizer
class itself does not manage or
use this information. However, subclasses and tools may use
appropriately maintained values to help control and monitor access
and provide diagnostics.- Since:
- 1.6
- See Also:
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Constructor Summary
ModifierConstructorDescriptionprotected
Empty constructor for use by subclasses. -
Method Summary
Modifier and TypeMethodDescriptionprotected final Thread
Returns the thread last set bysetExclusiveOwnerThread
, ornull
if never set.protected final void
setExclusiveOwnerThread
(Thread thread) Sets the thread that currently owns exclusive access.
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Constructor Details
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AbstractOwnableSynchronizer
protected AbstractOwnableSynchronizer()Empty constructor for use by subclasses.
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Method Details
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setExclusiveOwnerThread
Sets the thread that currently owns exclusive access. Anull
argument indicates that no thread owns access. This method does not otherwise impose any synchronization orvolatile
field accesses.- Parameters:
thread
- the owner thread
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getExclusiveOwnerThread
Returns the thread last set bysetExclusiveOwnerThread
, ornull
if never set. This method does not otherwise impose any synchronization orvolatile
field accesses.- Returns:
- the owner thread
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