Java Doc for AtomicBoolean.java in » 6.0-JDK-Core » Collections-Jar-Zip-Logging-regex » java » util » concurrent » atomic » Java Source Code / Java DocumentationJava Source Code and Java Documentation

1.	6.0 JDK Core
2.	6.0 JDK Modules
3.	6.0 JDK Modules com.sun
4.	6.0 JDK Modules com.sun.java
5.	6.0 JDK Modules sun
6.	6.0 JDK Platform
7.	Ajax
8.	Apache Harmony Java SE
9.	Aspect oriented
10.	Authentication Authorization
11.	Blogger System
12.	Build
13.	Byte Code
14.	Cache
15.	Chart
16.	Chat
17.	Code Analyzer
18.	Collaboration
19.	Content Management System
20.	Database Client
21.	Database DBMS
22.	Database JDBC Connection Pool
23.	Database ORM
24.	Development
25.	EJB Server
26.	ERP CRM Financial
27.	ESB
28.	Forum
29.	Game
30.	GIS
31.	Graphic 3D
32.	Graphic Library
33.	Groupware
34.	HTML Parser
35.	IDE
36.	IDE Eclipse
37.	IDE Netbeans
38.	Installer
39.	Internationalization Localization
40.	Inversion of Control
41.	Issue Tracking
42.	J2EE
43.	J2ME
44.	JBoss
45.	JMS
46.	JMX
47.	Library
48.	Mail Clients
49.	Music
50.	Net
51.	Parser
52.	PDF
53.	Portal
54.	Profiler
55.	Project Management
56.	Report
57.	RSS RDF
58.	Rule Engine
59.	Science
60.	Scripting
61.	Search Engine
62.	Security
63.	Sevlet Container
64.	Source Control
65.	Swing Library
66.	Template Engine
67.	Test Coverage
68.	Testing
69.	UML
70.	Web Crawler
71.	Web Framework
72.	Web Mail
73.	Web Server
74.	Web Services
75.	Web Services apache cxf 2.2.6
76.	Web Services AXIS2
77.	Wiki Engine
78.	Workflow Engines
79.	XML
80.	XML UI

Java Document (Java Doc)

AtomicBoolean
public class AtomicBoolean implements java.io.Serializable(Code)
	A boolean value that may be updated atomically. See the java.util.concurrent.atomic package specification for description of the properties of atomic variables. An AtomicBoolean is used in applications such as atomically updated flags, and cannot be used as a replacement for a java.lang.Boolean . since: 1.5 author: Doug Lea

Constructor Summary
public	AtomicBoolean(boolean initialValue) Creates a new AtomicBoolean with the given initial value.
public	AtomicBoolean() Creates a new AtomicBoolean with initial value false .

Method Summary
final public boolean	compareAndSet(boolean expect, boolean update) Atomically sets the value to the given updated value if the current value == the expected value. Parameters: expect - the expected value Parameters: update - the new value true if successful.
final public boolean	get() Returns the current value.
final public boolean	getAndSet(boolean newValue) Atomically sets to the given value and returns the previous value.
final public void	lazySet(boolean newValue) Eventually sets to the given value.
final public void	set(boolean newValue) Unconditionally sets to the given value.
public String	toString() Returns the String representation of the current value.
public boolean	weakCompareAndSet(boolean expect, boolean update) Atomically sets the value to the given updated value if the current value == the expected value.

Constructor Detail

AtomicBoolean
public AtomicBoolean(boolean initialValue)(Code)
	Creates a new AtomicBoolean with the given initial value. Parameters: initialValue - the initial value

AtomicBoolean
public AtomicBoolean()(Code)
	Creates a new AtomicBoolean with initial value false .

Method Detail

compareAndSet
final public boolean compareAndSet(boolean expect, boolean update)(Code)
	Atomically sets the value to the given updated value if the current value == the expected value. Parameters: expect - the expected value Parameters: update - the new value true if successful. False return indicates thatthe actual value was not equal to the expected value.

get
final public boolean get()(Code)
	Returns the current value. the current value

getAndSet
final public boolean getAndSet(boolean newValue)(Code)
	Atomically sets to the given value and returns the previous value. Parameters: newValue - the new value the previous value

lazySet
final public void lazySet(boolean newValue)(Code)
	Eventually sets to the given value. Parameters: newValue - the new value since: 1.6

set
final public void set(boolean newValue)(Code)
	Unconditionally sets to the given value. Parameters: newValue - the new value

toString
public String toString()(Code)
	Returns the String representation of the current value. the String representation of the current value.

weakCompareAndSet
public boolean weakCompareAndSet(boolean expect, boolean update)(Code)
	Atomically sets the value to the given updated value if the current value == the expected value. May fail spuriously and does not provide ordering guarantees, so is only rarely an appropriate alternative to compareAndSet . Parameters: expect - the expected value Parameters: update - the new value true if successful.

Methods inherited from java.lang.Object

native protected Object clone() throws CloneNotSupportedException(Code)(Java Doc)
public boolean equals(Object obj)(Code)(Java Doc)
protected void finalize() throws Throwable(Code)(Java Doc)
final native public Class getClass()(Code)(Java Doc)
native public int hashCode()(Code)(Java Doc)
final native public void notify()(Code)(Java Doc)
final native public void notifyAll()(Code)(Java Doc)
public String toString()(Code)(Java Doc)
final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc)
final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc)
final public void wait() throws InterruptedException(Code)(Java Doc)

All other trademarks are property of their respective owners.