- java.lang.Object
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- java.util.concurrent.locks.AbstractOwnableSynchronizer
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- All Implemented Interfaces:
- Serializable
- Direct Known Subclasses:
- AbstractQueuedLongSynchronizer, AbstractQueuedSynchronizer
public abstract class AbstractOwnableSynchronizer extends Object implements Serializable
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:
- Serialized Form
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Constructor Summary
Constructors Modifier Constructor and Description protected
AbstractOwnableSynchronizer()
Empty constructor for use by subclasses.
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Method Summary
Methods Modifier and Type Method and Description protected Thread
getExclusiveOwnerThread()
Returns the thread last set by setExclusiveOwnerThread, or null if never set.protected void
setExclusiveOwnerThread(Thread t)
Sets the thread that currently owns exclusive access.
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Constructor Detail
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AbstractOwnableSynchronizer
protected AbstractOwnableSynchronizer()
Empty constructor for use by subclasses.
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Method Detail
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setExclusiveOwnerThread
protected final void setExclusiveOwnerThread(Thread t)
Sets the thread that currently owns exclusive access. A null argument indicates that no thread owns access. This method does not otherwise impose any synchronization or volatile field accesses.
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getExclusiveOwnerThread
protected final Thread getExclusiveOwnerThread()
Returns the thread last set by setExclusiveOwnerThread, or null if never set. This method does not otherwise impose any synchronization or volatile field accesses.- Returns:
- the owner thread
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Document created the 11/06/2005, last modified the 04/03/2020
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