compact1, compact2, compact3
java.util.concurrent.locks
Class AbstractOwnableSynchronizer
- 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. TheAbstractOwnableSynchronizerclass 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 protectedAbstractOwnableSynchronizer()Empty constructor for use by subclasses.
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method and Description protected ThreadgetExclusiveOwnerThread()Returns the thread last set bysetExclusiveOwnerThread, ornullif never set.protected voidsetExclusiveOwnerThread(Thread thread)Sets the thread that currently owns exclusive access.
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Constructor Detail
AbstractOwnableSynchronizer
protected AbstractOwnableSynchronizer()
Empty constructor for use by subclasses.
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Method Detail
setExclusiveOwnerThread
protected final void setExclusiveOwnerThread(Thread thread)
Sets the thread that currently owns exclusive access. Anullargument indicates that no thread owns access. This method does not otherwise impose any synchronization orvolatilefield accesses.- Parameters:
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thread- the owner thread
getExclusiveOwnerThread
protected final Thread getExclusiveOwnerThread()
Returns the thread last set bysetExclusiveOwnerThread, ornullif never set. This method does not otherwise impose any synchronization orvolatilefield accesses.- Returns:
- the owner thread
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