org.cip4.jdflib.util.thread

Class MultiTaskQueue

java.lang.Object

java.lang.Thread

org.cip4.jdflib.util.thread.OrderedTaskQueue

org.cip4.jdflib.util.thread.MultiTaskQueue

All Implemented Interfaces:

java.lang.Runnable

Direct Known Subclasses:

MultiJobTaskQueue

public class MultiTaskQueue
extends OrderedTaskQueue

class to run heavy tasks one at a time

Nested Class Summary

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

java.lang.Thread.State, java.lang.Thread.UncaughtExceptionHandler

Field Summary

Fields inherited from class java.lang.Thread

MAX_PRIORITY, MIN_PRIORITY, NORM_PRIORITY

Method Summary

Modifier and Type	Method and Description
int	executing()
static MultiTaskQueue	getCreateQueue(java.lang.String name, int maxParallel) grab the queue
int	getCurrentRunning() get the number of currently running tasks
int	getMaxParallel()
boolean	interruptCurrent(int minAge)
boolean	interruptTask(java.lang.Runnable theRunner)
void	setMaxParallel(int maxParallel)
void	shutDown()
void	start()
java.lang.String	toString()

Methods inherited from class org.cip4.jdflib.util.thread.OrderedTaskQueue

getAvQueue, getAvRun, getCreateQueue, getDone, getSumQueue, getSumRun, isLive, queue, run, shutDown, shutDownAll, size, waiting

Methods inherited from class java.lang.Thread

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

Methods inherited from class java.lang.Object

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

Method Detail

getCreateQueue

public static MultiTaskQueue getCreateQueue(java.lang.String name,
                                            int maxParallel)

grab the queue

Parameters:

name - - must not be null

maxParallel - ignored if <=0

Returns:

the queue to fill with tasks

setMaxParallel

public void setMaxParallel(int maxParallel)

Parameters:

maxParallel -

getCurrentRunning

public int getCurrentRunning()

get the number of currently running tasks

Returns:

interruptCurrent

public boolean interruptCurrent(int minAge)

Overrides:

interruptCurrent in class OrderedTaskQueue

Parameters:

minAge - minimum age to interrupt

Returns:

true if we successfully interrupted or no entries were running

interruptTask

public boolean interruptTask(java.lang.Runnable theRunner)

Parameters:

theRunner - runner to zapp

Returns:

true if we successfully interrupted or no entries were running

start

public void start()

Overrides:

start in class java.lang.Thread

See Also:

Thread.start()

toString

public java.lang.String toString()

Overrides:

toString in class OrderedTaskQueue

Returns:

See Also:

Thread.toString()

getMaxParallel

public int getMaxParallel()

Returns:

the maxParallel

shutDown

public void shutDown()

Overrides:

shutDown in class OrderedTaskQueue

See Also:

OrderedTaskQueue.shutDown()

executing

public int executing()

Overrides:

executing in class OrderedTaskQueue

See Also:

OrderedTaskQueue.executing()