Java Doc for AtomicReferenceArray.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)

AtomicReferenceArray
public class AtomicReferenceArray implements java.io.Serializable(Code)
	An array of object references in which elements 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: E - > The base class of elements held in this array

Constructor Summary
public	AtomicReferenceArray(int length) Creates a new AtomicReferenceArray of given length.
public	AtomicReferenceArray(E[] array) Creates a new AtomicReferenceArray with the same length as, and all elements copied from, the given array.

Method Summary
final public boolean	compareAndSet(int i, E expect, E update) Atomically sets the element at position i to the given updated value if the current value == the expected value. Parameters: i - the index Parameters: expect - the expected value Parameters: update - the new value true if successful.
final public E	get(int i) Gets the current value at position i .
final public E	getAndSet(int i, E newValue) Atomically sets the element at position i to the given value and returns the old value.
final public void	lazySet(int i, E newValue) Eventually sets the element at position i to the given value.
final public int	length() Returns the length of the array.
final public void	set(int i, E newValue) Sets the element at position i to the given value.
public String	toString() Returns the String representation of the current values of array.
final public boolean	weakCompareAndSet(int i, E expect, E update) Atomically sets the element at position i to the given updated value if the current value == the expected value.

Constructor Detail

AtomicReferenceArray
public AtomicReferenceArray(int length)(Code)
	Creates a new AtomicReferenceArray of given length. Parameters: length - the length of the array

AtomicReferenceArray
public AtomicReferenceArray(E[] array)(Code)
	Creates a new AtomicReferenceArray with the same length as, and all elements copied from, the given array. Parameters: array - the array to copy elements from throws: NullPointerException - if array is null

Method Detail

compareAndSet
final public boolean compareAndSet(int i, E expect, E update)(Code)
	Atomically sets the element at position i to the given updated value if the current value == the expected value. Parameters: i - the index 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 E get(int i)(Code)
	Gets the current value at position i . Parameters: i - the index the current value

getAndSet
final public E getAndSet(int i, E newValue)(Code)
	Atomically sets the element at position i to the given value and returns the old value. Parameters: i - the index Parameters: newValue - the new value the previous value

lazySet
final public void lazySet(int i, E newValue)(Code)
	Eventually sets the element at position i to the given value. Parameters: i - the index Parameters: newValue - the new value since: 1.6

length
final public int length()(Code)
	Returns the length of the array. the length of the array

set
final public void set(int i, E newValue)(Code)
	Sets the element at position i to the given value. Parameters: i - the index Parameters: newValue - the new value

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

weakCompareAndSet
final public boolean weakCompareAndSet(int i, E expect, E update)(Code)
	Atomically sets the element at position i 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: i - the index 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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