org.apache.batik.util

Class HaltingThread

java.lang.Object

java.lang.Thread

org.apache.batik.util.HaltingThread

All Implemented Interfaces:

Runnable

public class HaltingThread
extends Thread

This is a subclass of java.lang.Thread that includes a non-intrusive 'halt' method. The Halt method simply sets a boolean that can be checked periodically during expensive processing.

Version:

$Id: HaltingThread.java 1733416 2016-03-03 07:07:13Z gadams $

Author:

deweese

Nested Class Summary

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

Thread.State, Thread.UncaughtExceptionHandler

Field Summary

Fields

Modifier and Type	Field and Description
protected boolean	beenHalted Boolean indicating if this thread has ever been 'halted'.

Fields inherited from class java.lang.Thread

MAX_PRIORITY, MIN_PRIORITY, NORM_PRIORITY

Constructor Summary

Constructors

Constructor and Description
HaltingThread()
HaltingThread(Runnable r)
HaltingThread(Runnable r, String name)
HaltingThread(String name)

Method Summary

Methods

Modifier and Type	Method and Description
void	clearHalted() Set's beenHalted to false.
void	halt() Set's beenHalted to true.
static void	haltThread() Calls 'halt' on Thread.currentThread() if it is an instance of HaltingThread otherwise it does nothing.
static void	haltThread(Thread t) Calls 'halt' on t if it is an instance of HaltingThread otherwise it does nothing.
static boolean	hasBeenHalted() Returns the result of calling hasBeenHalted on Thread.currentThread(), if it is an instance of HaltingThread otherwise it returns false.
static boolean	hasBeenHalted(Thread t) Returns the result of calling hasBeenHalted on t, if it is an instance of HaltingThread otherwise it returns false.
boolean	isHalted() returns true if someone has halted the thread.

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

Field Detail

beenHalted

protected boolean beenHalted

Boolean indicating if this thread has ever been 'halted'.

Constructor Detail

HaltingThread

public HaltingThread()

HaltingThread

public HaltingThread(Runnable r)

HaltingThread

public HaltingThread(String name)

HaltingThread

public HaltingThread(Runnable r,
             String name)

Method Detail

isHalted

public boolean isHalted()

returns true if someone has halted the thread.

halt

public void halt()

Set's beenHalted to true.

clearHalted

public void clearHalted()

Set's beenHalted to false.

haltThread

public static void haltThread()

Calls 'halt' on Thread.currentThread() if it is an instance of HaltingThread otherwise it does nothing.

haltThread

public static void haltThread(Thread t)

Calls 'halt' on t if it is an instance of HaltingThread otherwise it does nothing.

hasBeenHalted

public static boolean hasBeenHalted()

Returns the result of calling hasBeenHalted on Thread.currentThread(), if it is an instance of HaltingThread otherwise it returns false.

hasBeenHalted

public static boolean hasBeenHalted(Thread t)

Returns the result of calling hasBeenHalted on t, if it is an instance of HaltingThread otherwise it returns false.