java.util.concurrent.locks.AbstractQueuedSynchronizer.ConditionObject
Condition implementation for a AbstractQueuedSynchronizer serving as the basis of a Lock implementation.
Method documentation for this class describes mechanics,
not behavioral specifications from the point of view of Lock
and Condition users. Exported versions of this class will in
general need to be accompanied by documentation describing
condition semantics that rely on those of the associated
AbstractQueuedSynchronizer.
This class is Serializable, but all fields are transient,
so deserialized conditions have no waiters.
Summary
Public Constructors
Public Methods
Protected Methods
clone,
equals,
finalize,
getClass,
hashCode,
notify,
notifyAll,
toString,
wait,
wait,
wait
Details
Public Constructors
public
AbstractQueuedSynchronizer.ConditionObject()
Creates a new ConditionObject instance.
Public Methods
public
final
boolean
await(long time, TimeUnit unit)
Implements timed condition wait.
- If current thread is interrupted, throw InterruptedException
- Save lock state returned by getState()
- Invoke release(int) with
saved state as argument, throwing
IllegalMonitorStateException if it fails.
- Block until signalled, interrupted, or timed out
- Reacquire by invoking specialized version of
acquire(int) with saved state as argument.
- If interrupted while blocked in step 4, throw InterruptedException
- If timed out while blocked in step 4, return false, else true
Parameters
time
| the maximum time to wait |
unit
| the time unit of the time argument. |
Returns
- false if the waiting time detectably elapsed
before return from the method, else true.
Throws
InterruptedException
| if the current thread is interrupted (and
interruption of thread suspension is supported).
|
public
final
void
await()
Implements interruptible condition wait.
- If current thread is interrupted, throw InterruptedException
- Save lock state returned by getState()
- Invoke release(int) with
saved state as argument, throwing
IllegalMonitorStateException if it fails.
- Block until signalled or interrupted
- Reacquire by invoking specialized version of
acquire(int) with saved state as argument.
- If interrupted while blocked in step 4, throw exception
Throws
InterruptedException
| if the current thread is interrupted (and
interruption of thread suspension is supported).
|
public
final
long
awaitNanos(long nanosTimeout)
Implements timed condition wait.
- If current thread is interrupted, throw InterruptedException
- Save lock state returned by getState()
- Invoke release(int) with
saved state as argument, throwing
IllegalMonitorStateException if it fails.
- Block until signalled, interrupted, or timed out
- Reacquire by invoking specialized version of
acquire(int) with saved state as argument.
- If interrupted while blocked in step 4, throw InterruptedException
Parameters
nanosTimeout
| the maximum time to wait, in nanoseconds |
Returns
- A value less than or equal to zero if the wait has
timed out; otherwise an estimate, that
is strictly less than the nanosTimeout argument,
of the time still remaining when this method returned.
Throws
InterruptedException
| if the current thread is interrupted (and
interruption of thread suspension is supported).
|
public
final
void
awaitUninterruptibly()
Implements uninterruptible condition wait.
- Save lock state returned by getState()
- Invoke release(int) with
saved state as argument, throwing
IllegalMonitorStateException if it fails.
- Block until signalled
- Reacquire by invoking specialized version of
acquire(int) with saved state as argument.
public
final
boolean
awaitUntil(Date deadline)
Implements absolute timed condition wait.
- If current thread is interrupted, throw InterruptedException
- Save lock state returned by getState()
- Invoke release(int) with
saved state as argument, throwing
IllegalMonitorStateException if it fails.
- Block until signalled, interrupted, or timed out
- Reacquire by invoking specialized version of
acquire(int) with saved state as argument.
- If interrupted while blocked in step 4, throw InterruptedException
- If timed out while blocked in step 4, return false, else true
Parameters
deadline
| the absolute time to wait until |
Returns
- false if the deadline has
elapsed upon return, else true.
Throws
InterruptedException
| if the current thread is interrupted (and
interruption of thread suspension is supported).
|
public
final
void
signal()
Moves the longest-waiting thread, if one exists, from the
wait queue for this condition to the wait queue for the
owning lock.
public
final
void
signalAll()
Moves all threads from the wait queue for this condition to
the wait queue for the owning lock.
Protected Methods
protected
final
int
getWaitQueueLength()
protected
final
boolean
hasWaiters()