Package org.apache.lucene.search

Class TimeLimitingCollector.TimerThread

java.lang.Object

java.lang.Thread

org.apache.lucene.search.TimeLimitingCollector.TimerThread

All Implemented Interfaces:

Runnable

Enclosing class:

TimeLimitingCollector

public static final class TimeLimitingCollector.TimerThread
extends Thread

Thread used to timeout search requests. Can be stopped completely with stopTimer()

Nested Class Summary

Nested classes/interfaces inherited from class java.lang.Thread

Thread.State, Thread.UncaughtExceptionHandler

Field Summary

Fields

Modifier and Type	Field	Description
static int	DEFAULT_RESOLUTION
static String	THREAD_NAME

Fields inherited from class java.lang.Thread

MAX_PRIORITY, MIN_PRIORITY, NORM_PRIORITY

Constructor Summary

Constructors

Constructor	Description
TimerThread(long resolution, Counter counter)
TimerThread(Counter counter)

Method Summary

Modifier and Type	Method	Description
long	getMilliseconds()	Get the timer value in milliseconds.
long	getResolution()	Return the timer resolution.
void	run()
void	setResolution(long resolution)	Set the timer resolution.
void	stopTimer()	Stops the timer thread

Methods inherited from class java.lang.Thread

activeCount, checkAccess, clone, countStackFrames, currentThread, dumpStack, enumerate, getAllStackTraces, getContextClassLoader, getDefaultUncaughtExceptionHandler, getId, getName, getPriority, getStackTrace, getState, getThreadGroup, getUncaughtExceptionHandler, holdsLock, interrupt, interrupted, isAlive, isDaemon, isInterrupted, join, join, join, onSpinWait, resume, setContextClassLoader, setDaemon, setDefaultUncaughtExceptionHandler, setName, setPriority, setUncaughtExceptionHandler, sleep, sleep, start, stop, suspend, toString, yield

Methods inherited from class java.lang.Object

equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

THREAD_NAME

public static final String THREAD_NAME

See Also:

Constant Field Values

DEFAULT_RESOLUTION

public static final int DEFAULT_RESOLUTION

See Also:

Constant Field Values

Constructor Detail

TimerThread

public TimerThread(long resolution,
                   Counter counter)

TimerThread

public TimerThread(Counter counter)

Method Detail

run

public void run()

Specified by:

run in interface Runnable

Overrides:

run in class Thread

getMilliseconds

public long getMilliseconds()

Get the timer value in milliseconds.

stopTimer

public void stopTimer()

Stops the timer thread

getResolution

public long getResolution()

Return the timer resolution.

See Also:

setResolution(long)

setResolution

public void setResolution(long resolution)

Set the timer resolution. The default timer resolution is 20 milliseconds. This means that a search required to take no longer than 800 milliseconds may be stopped after 780 to 820 milliseconds.
Note that:

• Finer (smaller) resolution is more accurate but less efficient.
• Setting resolution to less than 5 milliseconds will be silently modified to 5 milliseconds.
• Setting resolution smaller than current resolution might take effect only after current resolution. (Assume current resolution of 20 milliseconds is modified to 5 milliseconds, then it can take up to 20 milliseconds for the change to have effect.