com.hp.util

Class Task

java.lang.Object

java.lang.Thread

com.hp.util.Task

All Implemented Interfaces:

Runnable

public abstract class Task
extends Thread

Thread capable of reporting high-level processing status and responding to a cease request.

Author:

Thomas Vachuska

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

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	Task(String name) Create a new task with the specified name.

Method Summary

Methods

Modifier and Type	Method and Description
void	cease() Request peaceful shutdown of the task.
static void	delay(int ms) Utility method to pause the current thread.
boolean	isIdle() Provides an indication whether the task is currently busy or not.
protected boolean	stopped() Indicates whether the task has been stopped.

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

Task

protected Task(String name)

Create a new task with the specified name.

Parameters:

name - name of the task

Method Detail

cease

public void cease()

Request peaceful shutdown of the task.

stopped

protected boolean stopped()

Indicates whether the task has been stopped.

Returns:

true if stopped

isIdle

public boolean isIdle()

Provides an indication whether the task is currently busy or not.

Returns:

true if the task is idle (not busy); false otherwise; the default implementation is always true

delay

public static void delay(int ms)

Utility method to pause the current thread.

Parameters:

ms - number of milliseconds to pause