com.sun.jini.thread

Class NewThreadAction

java.lang.Object

com.sun.jini.thread.NewThreadAction

All Implemented Interfaces:

PrivilegedAction

public final class NewThreadAction
extends Object
implements PrivilegedAction

A PrivilegedAction for creating a new thread conveniently with an AccessController.doPrivileged or Security.doPrivileged. All constructors allow the choice of the Runnable for the new thread to execute, the name of the new thread (which will be prefixed with the constant NAME_PREFIX), and whether or not it will be a daemon thread. The new thread may be created in the system thread group (the root of the thread group tree) or an internally created non-system thread group, as specified at construction of this class. The new thread will have the system class loader as its initial context class loader (that is, its context class loader will NOT be inherited from the current thread).

Author:

Sun Microsystems, Inc.

Field Summary

Fields

Modifier and Type	Field and Description
private boolean	daemon
private static Permission	getClassLoaderPermission
private ThreadGroup	group
private String	name
(package private) static String	NAME_PREFIX
private Runnable	runnable
(package private) static ThreadGroup	systemThreadGroup cached reference to the system (root) thread group
(package private) static ThreadGroup	userThreadGroup special child of the system thread group for running tasks that may execute user code, so that the security policy for threads in the system thread group will not apply

Constructor Summary

Constructors

Constructor and Description
NewThreadAction(Runnable runnable, String name, boolean daemon) Creates an action that will create a new thread in the system thread group.
NewThreadAction(Runnable runnable, String name, boolean daemon, boolean user) Creates an action that will create a new thread.
NewThreadAction(ThreadGroup group, Runnable runnable, String name, boolean daemon)

Method Summary

Methods

Modifier and Type	Method and Description
Object	run()

Methods inherited from class java.lang.Object

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

Field Detail

NAME_PREFIX

static final String NAME_PREFIX

See Also:

Constant Field Values

systemThreadGroup

static final ThreadGroup systemThreadGroup

cached reference to the system (root) thread group

userThreadGroup

static final ThreadGroup userThreadGroup

special child of the system thread group for running tasks that may execute user code, so that the security policy for threads in the system thread group will not apply

getClassLoaderPermission

private static final Permission getClassLoaderPermission

group

private final ThreadGroup group

runnable

private final Runnable runnable

name

private final String name

daemon

private final boolean daemon

Constructor Detail

NewThreadAction

NewThreadAction(ThreadGroup group,
               Runnable runnable,
               String name,
               boolean daemon)

NewThreadAction

public NewThreadAction(Runnable runnable,
               String name,
               boolean daemon)

Creates an action that will create a new thread in the system thread group.

Parameters:

runnable - the Runnable for the new thread to execute

name - the name of the new thread

daemon - if true, new thread will be a daemon thread; if false, new thread will not be a daemon thread

NewThreadAction

public NewThreadAction(Runnable runnable,
               String name,
               boolean daemon,
               boolean user)

Creates an action that will create a new thread.

Parameters:

runnable - the Runnable for the new thread to execute

name - the name of the new thread

daemon - if true, new thread will be a daemon thread; if false, new thread will not be a daemon thread

user - if true, thread will be created in a non-system thread group; if false, thread will be created in the system thread group

Method Detail

run

public Object run()

Specified by:

run in interface PrivilegedAction