er.extensions.concurrency
Class ERXTaskThread

java.lang.Object
  java.lang.Thread
      er.extensions.concurrency.ERXTaskThread

All Implemented Interfaces:

java.lang.Runnable

public class ERXTaskThread
extends java.lang.Thread

This is the custom Thread subclass that is used for running background tasks. This Thread subclass is automatically created by the ERXTaskThreadFactory which in turn is used by the ERXTaskThreadPoolExecutor The purpose of this subclass is

• to identify threads that were created by ERXTaskThreadFactory using instanceof when enumerating all threads
• to store a reference to the task itself in this Thread subclass while the task is executing making it easy to get a reference to tasks for application monitoring
• provide related static utility methods to find all tasks or tasks of a certain class that are currently running and that were created by ERXTaskThreadFactory

A user does not generally need to instantiate this class. This class is generally used by ExecutorService instances that are created by ERXExecutorService static utility methods.

See Also:

ERXTaskThreadPoolExecutor, ERXExecutorService, ERXTaskThreadFactory

Author:

kieran

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

Constructor Summary

ERXTaskThread(java.lang.Runnable target)

Method Summary

java.lang.String	elapsedTime()
void	setTask(java.lang.Runnable task)
void	startStopWatch()
void	stopStopWatch()
java.lang.Runnable	task()
static <T> com.webobjects.foundation.NSArray<T>	taskForTaskClass(java.lang.Class<T> clazz)
static com.webobjects.foundation.NSArray	taskInfos()
static com.webobjects.foundation.NSArray	tasks()

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, run, setContextClassLoader, setDaemon, setDefaultUncaughtExceptionHandler, setName, setPriority, setUncaughtExceptionHandler, sleep, sleep, start, stop, stop, suspend, toString, yield

Methods inherited from class java.lang.Object

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

Constructor Detail

ERXTaskThread

public ERXTaskThread(java.lang.Runnable target)

Method Detail

task

public java.lang.Runnable task()

Returns:

the current task being executed

setTask

public void setTask(java.lang.Runnable task)

Parameters:

task - the current task being executed TODO: Check if the Runnable is a Future wrapping the real task and unwrap it.

tasks

public static com.webobjects.foundation.NSArray tasks()

Returns:

NSArray of background tasks

taskInfos

public static com.webobjects.foundation.NSArray taskInfos()

Returns:

NSArray of ERXTaskInfo

taskForTaskClass

public static <T> com.webobjects.foundation.NSArray<T> taskForTaskClass(java.lang.Class<T> clazz)

startStopWatch

public void startStopWatch()

elapsedTime

public java.lang.String elapsedTime()

stopStopWatch

public void stopStopWatch()