org.PingOO.DLAI.lib.util
Class PThreadGroup

java.lang.Object
  |
  +--java.lang.ThreadGroup
        |
        +--org.PingOO.DLAI.lib.util.PThreadGroup

public class PThreadGroup

extends java.lang.ThreadGroup

An extended thread group.

Since:

PingOO 2.0

Version:

2.0

Author:

Fabrice Bouyé (bouye@cur-archamps.fr)

See Also:

ThreadGroup

Field Summary

private static PThreadGroup	defaultGroup The default goup which will be at the root of the PingOO thread group tree.
private static int	GROUP_COUNT The current number of groups.
private static int	GROUP_NUMBER The group number generator.
private int	groupIdentifier The unique indentifier of the current group.

Fields inherited from class java.lang.ThreadGroup

daemon, destroyed, groups, maxPriority, name, ngroups, nthreads, parent, threads, vmAllowSuspension

Constructor Summary

private	PThreadGroup() Creates a the default thread group.
private	PThreadGroup(java.lang.String name) Creates a new thread group.

Method Summary

protected void	finalize() Called by the garbage collector on an object when garbage collection determines that there are no more references to the object.
static PThreadGroup	getDefaultGroup() Returns the default group which is at the root of all PingOO threads and groups.
static int	getInstanceNumber() Returns the number identifier of the last instancied group.
static PThreadGroup	getNewInstance(java.lang.String name) Returns a new instance of a pgroup.
java.lang.String	toString()

Methods inherited from class java.lang.ThreadGroup

activeCount, activeGroupCount, add, add, allowThreadSuspension, checkAccess, destroy, enumerate, enumerate, enumerate, enumerate, enumerate, enumerate, getMaxPriority, getName, getParent, interrupt, isDaemon, isDestroyed, list, list, parentOf, remove, remove, resume, setDaemon, setMaxPriority, stop, suspend, uncaughtException

Methods inherited from class java.lang.Object

, clone, equals, getClass, hashCode, notify, notifyAll, registerNatives, wait, wait, wait

Field Detail

defaultGroup

private static PThreadGroup defaultGroup

The default goup which will be at the root of the PingOO thread group tree.

GROUP_NUMBER

private static int GROUP_NUMBER

The group number generator.

GROUP_COUNT

private static int GROUP_COUNT

The current number of groups.

groupIdentifier

private int groupIdentifier

The unique indentifier of the current group.

Constructor Detail

PThreadGroup

private PThreadGroup()
              throws java.lang.SecurityException

Creates a the default thread group.

Throws:

java.lang.SecurityException - If the current thread cannot create a thread in the specified thread group.

PThreadGroup

private PThreadGroup(java.lang.String name)
              throws java.lang.NullPointerException,
                     java.lang.SecurityException

Creates a new thread group.
The parent of this new group is the specified thread group.

Parameters:

name - The name of the new group.

Throws:

java.lang.NullPointerException - If the thread group argument is null.

java.lang.SecurityException - If the current thread cannot create a thread in the specified thread group.

Method Detail

getNewInstance

public static PThreadGroup getNewInstance(java.lang.String name)
                                   throws java.lang.NullPointerException,
                                          java.lang.SecurityException

Returns a new instance of a pgroup.

Parameters:

name - The name of the new group.

Returns:

A new instance of a pgroup, null in case of problems.

getDefaultGroup

public static PThreadGroup getDefaultGroup()

Returns the default group which is at the root of all PingOO threads and groups.

Returns:

The default group which is at the root of all PingOO threads and groups.

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.ThreadGroup

getInstanceNumber

public static int getInstanceNumber()

Returns the number identifier of the last instancied group.

Returns:

The number identifier of the last instancied group.

finalize

protected void finalize()
                 throws java.lang.Throwable

Called by the garbage collector on an object when garbage collection determines that there are no more references to the object.

Overrides:

finalize in class java.lang.Object