org.cip4.jdflib.util.thread

Class OrderedTaskQueue

java.lang.Object

java.lang.Thread

org.cip4.jdflib.util.thread.OrderedTaskQueue

All Implemented Interfaces:

Runnable

Direct Known Subclasses:

MultiTaskQueue

public class OrderedTaskQueue
extends Thread

class to run heavy tasks one at a time

Author:

Rainer Prosi, Heidelberger Druckmaschinen *

Nested Class Summary

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

Thread.State, Thread.UncaughtExceptionHandler

Field Summary

Fields inherited from class java.lang.Thread

MAX_PRIORITY, MIN_PRIORITY, NORM_PRIORITY

Method Summary

Methods

Modifier and Type	Method and Description
long	getAvQueue() Getter for average time waiting
long	getAvRun() Getter for average time running
static OrderedTaskQueue	getCreateQueue(String name) grab the queue
int	getDone() number of already completed tasks
long	getSumQueue() Getter for sumQueue attribute.
long	getSumRun() Getter for sumRun attribute.
boolean	interruptCurrent(int minAge)
boolean	queue(Runnable task)
void	run()
void	shutDown()
static void	shutDownAll()
int	size() size of the waiting queue
String	toString()

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, start, 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 OrderedTaskQueue getCreateQueue(String name)

grab the queue

Parameters:

name - - must not be null

Returns:

the queue to fill with tasks

shutDownAll

public static void shutDownAll()

shutDown

public void shutDown()

interruptCurrent

public boolean interruptCurrent(int minAge)

Parameters:

minAge - minimum age to interrupt

Returns:

true if we successfully interrupted or no entry was running; false if unsuccessful or current is younger than minAge

size

public int size()

size of the waiting queue

Returns:

getDone

public int getDone()

number of already completed tasks

Returns:

queue

public boolean queue(Runnable task)

Parameters:

task - the thing to send off

Returns:

true if successfully queued

run

public void run()

Specified by:

run in interface Runnable

Overrides:

run in class Thread

See Also:

Thread.run()

toString

public String toString()

Overrides:

toString in class Thread

Returns:

See Also:

Thread.toString()

getAvQueue

public long getAvQueue()

Getter for average time waiting

Returns:

the average sumQueue

getSumQueue

public long getSumQueue()

Getter for sumQueue attribute. total time waiting

Returns:

the sumQueue

getAvRun

public long getAvRun()

Getter for average time running

Returns:

the average sumRun

getSumRun

public long getSumRun()

Getter for sumRun attribute. total time running

Returns:

the sumRun