Java Doc for AtomicReference.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

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Java Document (Java Doc)

AtomicReference
public class AtomicReference implements java.io.Serializable(Code)
	An object reference that may be updated atomically. See the java.util.concurrent.atomic package specification for description of the properties of atomic variables. since: 1.5 author: Doug Lea< Parameters: V - > The type of object referred to by this reference

Constructor Summary
public	AtomicReference(V initialValue) Creates a new AtomicReference with the given initial value.
public	AtomicReference() Creates a new AtomicReference with null initial value.

Method Summary
final public boolean	compareAndSet(V expect, V 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 V	get() Gets the current value.
final public V	getAndSet(V newValue) Atomically sets to the given value and returns the old value.
final public void	lazySet(V newValue) Eventually sets to the given value.
final public void	set(V newValue) Sets to the given value.
public String	toString() Returns the String representation of the current value.
final public boolean	weakCompareAndSet(V expect, V update) Atomically sets the value to the given updated value if the current value == the expected value.

Constructor Detail

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

AtomicReference
public AtomicReference()(Code)
	Creates a new AtomicReference with null initial value.

Method Detail

compareAndSet
final public boolean compareAndSet(V expect, V 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 V get()(Code)
	Gets the current value. the current value

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

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

set
final public void set(V newValue)(Code)
	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
final public boolean weakCompareAndSet(V expect, V 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)

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