AbstractOwnableSynchronizer (Java Platform SE 6) (original) (raw)

java.util.concurrent.locks

Class AbstractOwnableSynchronizer

java.lang.Object extended by java.util.concurrent.locks.AbstractOwnableSynchronizer

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. TheAbstractOwnableSynchronizer 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

Constructor Summary
protected AbstractOwnableSynchronizer() Empty constructor for use by subclasses.
Method Summary
protected Thread getExclusiveOwnerThread() Returns the thread last set bysetExclusiveOwnerThread, or null if never set.
protected void setExclusiveOwnerThread(Thread t) Sets the thread that currently owns exclusive access.
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, [wait](../../../../java/lang/Object.html#wait%28long, int%29)
Constructor Detail

AbstractOwnableSynchronizer

protected AbstractOwnableSynchronizer()

Empty constructor for use by subclasses.

Method Detail

setExclusiveOwnerThread

protected final void setExclusiveOwnerThread(Thread t)

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.

getExclusiveOwnerThread

protected final Thread getExclusiveOwnerThread()

Returns the thread last set bysetExclusiveOwnerThread, 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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