java.util.concurrent.atomic
Class AtomicLongArray

java.lang.Object sample code for java.lang.Object definition code for java.lang.Object 
  extended by java.util.concurrent.atomic.AtomicLongArray
All Implemented Interfaces:
Serializable sample code for java.io.Serializable definition code for java.io.Serializable

public class AtomicLongArray
extends Object sample code for java.lang.Object definition code for java.lang.Object
implements Serializable sample code for java.io.Serializable definition code for java.io.Serializable

A long array 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
See Also:
Serialized Form

Constructor Summary
AtomicLongArray sample code for java.util.concurrent.atomic.AtomicLongArray.AtomicLongArray(int) definition code for java.util.concurrent.atomic.AtomicLongArray.AtomicLongArray(int) (int length)
          Create a new AtomicLongArray of given length.
AtomicLongArray sample code for java.util.concurrent.atomic.AtomicLongArray.AtomicLongArray(long[]) definition code for java.util.concurrent.atomic.AtomicLongArray.AtomicLongArray(long[]) (long[] array)
          Create a new AtomicLongArray with the same length as, and all elements copied from, the given array.
 
Method Summary
 long addAndGet sample code for java.util.concurrent.atomic.AtomicLongArray.addAndGet(int, long) definition code for java.util.concurrent.atomic.AtomicLongArray.addAndGet(int, long) (int i, long delta)
          Atomically add the given value to element at index i.
 boolean compareAndSet sample code for java.util.concurrent.atomic.AtomicLongArray.compareAndSet(int, long, long) definition code for java.util.concurrent.atomic.AtomicLongArray.compareAndSet(int, long, long) (int i, long expect, long update)
          Atomically set the value to the given updated value if the current value == the expected value.
 long decrementAndGet sample code for java.util.concurrent.atomic.AtomicLongArray.decrementAndGet(int) definition code for java.util.concurrent.atomic.AtomicLongArray.decrementAndGet(int) (int i)
          Atomically decrement the element at index i.
 long get sample code for java.util.concurrent.atomic.AtomicLongArray.get(int) definition code for java.util.concurrent.atomic.AtomicLongArray.get(int) (int i)
          Get the current value at position i.
 long getAndAdd sample code for java.util.concurrent.atomic.AtomicLongArray.getAndAdd(int, long) definition code for java.util.concurrent.atomic.AtomicLongArray.getAndAdd(int, long) (int i, long delta)
          Atomically add the given value to element at index i.
 long getAndDecrement sample code for java.util.concurrent.atomic.AtomicLongArray.getAndDecrement(int) definition code for java.util.concurrent.atomic.AtomicLongArray.getAndDecrement(int) (int i)
          Atomically decrement by one the element at index i.
 long getAndIncrement sample code for java.util.concurrent.atomic.AtomicLongArray.getAndIncrement(int) definition code for java.util.concurrent.atomic.AtomicLongArray.getAndIncrement(int) (int i)
          Atomically increment by one the element at index i.
 long getAndSet sample code for java.util.concurrent.atomic.AtomicLongArray.getAndSet(int, long) definition code for java.util.concurrent.atomic.AtomicLongArray.getAndSet(int, long) (int i, long newValue)
          Set the element at position i to the given value and return the old value.
 long incrementAndGet sample code for java.util.concurrent.atomic.AtomicLongArray.incrementAndGet(int) definition code for java.util.concurrent.atomic.AtomicLongArray.incrementAndGet(int) (int i)
          Atomically increment the element at index i.
 int length sample code for java.util.concurrent.atomic.AtomicLongArray.length() definition code for java.util.concurrent.atomic.AtomicLongArray.length() ()
          Returns the length of the array.
 void set sample code for java.util.concurrent.atomic.AtomicLongArray.set(int, long) definition code for java.util.concurrent.atomic.AtomicLongArray.set(int, long) (int i, long newValue)
          Set the element at position i to the given value.
 String sample code for java.lang.String definition code for java.lang.String toString sample code for java.util.concurrent.atomic.AtomicLongArray.toString() definition code for java.util.concurrent.atomic.AtomicLongArray.toString() ()
          Returns the String representation of the current values of array.
 boolean weakCompareAndSet sample code for java.util.concurrent.atomic.AtomicLongArray.weakCompareAndSet(int, long, long) definition code for java.util.concurrent.atomic.AtomicLongArray.weakCompareAndSet(int, long, long) (int i, long expect, long update)
          Atomically set the value to the given updated value if the current value == the expected value.
 
Methods inherited from class java.lang.Object sample code for java.lang.Object definition code for java.lang.Object
clone sample code for java.lang.Object.clone() definition code for java.lang.Object.clone() , equals sample code for java.lang.Object.equals(java.lang.Object) definition code for java.lang.Object.equals(java.lang.Object) , finalize sample code for java.lang.Object.finalize() definition code for java.lang.Object.finalize() , getClass sample code for java.lang.Object.getClass() definition code for java.lang.Object.getClass() , hashCode sample code for java.lang.Object.hashCode() definition code for java.lang.Object.hashCode() , notify sample code for java.lang.Object.notify() definition code for java.lang.Object.notify() , notifyAll sample code for java.lang.Object.notifyAll() definition code for java.lang.Object.notifyAll() , wait sample code for java.lang.Object.wait() definition code for java.lang.Object.wait() , wait sample code for java.lang.Object.wait(long) definition code for java.lang.Object.wait(long) , wait sample code for java.lang.Object.wait(long, int) definition code for java.lang.Object.wait(long, int)
 

Constructor Detail

AtomicLongArray sample code for java.util.concurrent.atomic.AtomicLongArray(int) definition code for java.util.concurrent.atomic.AtomicLongArray(int)

public AtomicLongArray(int length)
Create a new AtomicLongArray of given length.

Parameters:
length - the length of the array

AtomicLongArray sample code for java.util.concurrent.atomic.AtomicLongArray(long[]) definition code for java.util.concurrent.atomic.AtomicLongArray(long[])

public AtomicLongArray(long[] array)
Create a new AtomicLongArray with the same length as, and all elements copied from, the given array.

Parameters:
array - the array to copy elements from
Throws:
NullPointerException sample code for java.lang.NullPointerException definition code for java.lang.NullPointerException - if array is null
Method Detail

length sample code for java.util.concurrent.atomic.AtomicLongArray.length() definition code for java.util.concurrent.atomic.AtomicLongArray.length()

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

Returns:
the length of the array

get sample code for java.util.concurrent.atomic.AtomicLongArray.get(int) definition code for java.util.concurrent.atomic.AtomicLongArray.get(int)

public final long get(int i)
Get the current value at position i.

Parameters:
i - the index
Returns:
the current value

set sample code for java.util.concurrent.atomic.AtomicLongArray.set(int, long) definition code for java.util.concurrent.atomic.AtomicLongArray.set(int, long)

public final void set(int i,
                      long newValue)
Set the element at position i to the given value.

Parameters:
i - the index
newValue - the new value

getAndSet sample code for java.util.concurrent.atomic.AtomicLongArray.getAndSet(int, long) definition code for java.util.concurrent.atomic.AtomicLongArray.getAndSet(int, long)

public final long getAndSet(int i,
                            long newValue)
Set the element at position i to the given value and return the old value.

Parameters:
i - the index
newValue - the new value
Returns:
the previous value

compareAndSet sample code for java.util.concurrent.atomic.AtomicLongArray.compareAndSet(int, long, long) definition code for java.util.concurrent.atomic.AtomicLongArray.compareAndSet(int, long, long)

public final boolean compareAndSet(int i,
                                   long expect,
                                   long update)
Atomically set the value to the given updated value if the current value == the expected value.

Parameters:
i - the index
expect - the expected value
update - the new value
Returns:
true if successful. False return indicates that the actual value was not equal to the expected value.

weakCompareAndSet sample code for java.util.concurrent.atomic.AtomicLongArray.weakCompareAndSet(int, long, long) definition code for java.util.concurrent.atomic.AtomicLongArray.weakCompareAndSet(int, long, long)

public final boolean weakCompareAndSet(int i,
                                       long expect,
                                       long update)
Atomically set the value to the given updated value if the current value == the expected value. May fail spuriously.

Parameters:
i - the index
expect - the expected value
update - the new value
Returns:
true if successful.

getAndIncrement sample code for java.util.concurrent.atomic.AtomicLongArray.getAndIncrement(int) definition code for java.util.concurrent.atomic.AtomicLongArray.getAndIncrement(int)

public final long getAndIncrement(int i)
Atomically increment by one the element at index i.

Parameters:
i - the index
Returns:
the previous value;

getAndDecrement sample code for java.util.concurrent.atomic.AtomicLongArray.getAndDecrement(int) definition code for java.util.concurrent.atomic.AtomicLongArray.getAndDecrement(int)

public final long getAndDecrement(int i)
Atomically decrement by one the element at index i.

Parameters:
i - the index
Returns:
the previous value;

getAndAdd sample code for java.util.concurrent.atomic.AtomicLongArray.getAndAdd(int, long) definition code for java.util.concurrent.atomic.AtomicLongArray.getAndAdd(int, long)

public final long getAndAdd(int i,
                            long delta)
Atomically add the given value to element at index i.

Parameters:
i - the index
delta - the value to add
Returns:
the previous value;

incrementAndGet sample code for java.util.concurrent.atomic.AtomicLongArray.incrementAndGet(int) definition code for java.util.concurrent.atomic.AtomicLongArray.incrementAndGet(int)

public final long incrementAndGet(int i)
Atomically increment the element at index i.

Parameters:
i - the index
Returns:
the updated value;

decrementAndGet sample code for java.util.concurrent.atomic.AtomicLongArray.decrementAndGet(int) definition code for java.util.concurrent.atomic.AtomicLongArray.decrementAndGet(int)

public final long decrementAndGet(int i)
Atomically decrement the element at index i.

Parameters:
i - the index
Returns:
the updated value;

addAndGet sample code for java.util.concurrent.atomic.AtomicLongArray.addAndGet(int, long) definition code for java.util.concurrent.atomic.AtomicLongArray.addAndGet(int, long)

public long addAndGet(int i,
                      long delta)
Atomically add the given value to element at index i.

Parameters:
i - the index
delta - the value to add
Returns:
the updated value;

toString sample code for java.util.concurrent.atomic.AtomicLongArray.toString() definition code for java.util.concurrent.atomic.AtomicLongArray.toString()

public String sample code for java.lang.String definition code for java.lang.String  toString()
Returns the String representation of the current values of array.

Overrides:
toString sample code for java.lang.Object.toString() definition code for java.lang.Object.toString() in class Object sample code for java.lang.Object definition code for java.lang.Object
Returns:
the String representation of the current values of array.