Class AbstractOwnableSynchronizer

java.lang.Object
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. 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:

  • Constructor Summary

    Constructors
    Modifier
    Constructor
    Description
    protected
    AbstractOwnableSynchronizer()
    Empty constructor for use by subclasses.

  • Method Summary

    Modifier and Type
    Method
    Description
    protected final Thread
    getExclusiveOwnerThread()
    Returns the thread last set by setExclusiveOwnerThread, or null if never set.
    protected final void
    setExclusiveOwnerThread(Thread thread)
    Sets the thread that currently owns exclusive access.

    Methods inherited from class Object

    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
    Modifier and Type
    Method
    Description
    protected Object
    clone()
    Creates and returns a copy of this object.
    boolean
    equals(Object obj)
    Indicates whether some other object is "equal to" this one.
    protected void
    finalize()
    Deprecated, for removal: This API element is subject to removal in a future version.
    Finalization is deprecated and subject to removal in a future release.
    final Class<?>
    getClass()
    Returns the runtime class of this Object.
    int
    hashCode()
    Returns a hash code value for this object.
    final void
    notify()
    Wakes up a single thread that is waiting on this object's monitor.
    final void
    notifyAll()
    Wakes up all threads that are waiting on this object's monitor.
    String
    toString()
    Returns a string representation of the object.
    final void
    wait()
    Causes the current thread to wait until it is awakened, typically by being notified or interrupted.
    final void
    wait(long timeoutMillis)
    Causes the current thread to wait until it is awakened, typically by being notified or interrupted, or until a certain amount of real time has elapsed.
    final void
    wait(long timeoutMillis, int nanos)
    Causes the current thread to wait until it is awakened, typically by being notified or interrupted, or until a certain amount of real time has elapsed.

  • Constructor Details

    • AbstractOwnableSynchronizer

      protected AbstractOwnableSynchronizer()
      Empty constructor for use by subclasses.

  • Method Details

    • setExclusiveOwnerThread

      protected final void setExclusiveOwnerThread(Thread thread)
      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.
      Parameters:
      thread - the owner thread

    • 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