org.gridgain.grid.kernal.processors.cache.datastructures

Class GridCacheAtomicLongImpl

java.lang.Object

org.gridgain.grid.kernal.processors.cache.datastructures.GridCacheAtomicLongImpl

All Implemented Interfaces:

Externalizable, Serializable, GridCacheAtomicLong, GridCacheAtomicLongEx, GridCacheRemovable

public final class GridCacheAtomicLongImpl
extends Object
implements GridCacheAtomicLongEx, Externalizable

Cache atomic long implementation.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
GridCacheAtomicLongImpl() Empty constructor required by Externalizable.
GridCacheAtomicLongImpl(String name, GridCacheInternalKey key, GridCacheProjection<GridCacheInternalKey,GridCacheAtomicLongValue> atomicView, GridCacheContext ctx) Default constructor.

Method Summary

Methods

Modifier and Type	Method and Description
long	addAndGet(long l) Adds l and gets current value of atomic long.
boolean	compareAndSet(long expVal, long newVal) Atomically compares current value to the expected value, and if they are equal, sets current value to new value.
long	decrementAndGet() Decrements and gets current value of atomic long.
long	get() Gets current value of atomic long.
long	getAndAdd(long l) Gets current value of atomic long and adds l.
long	getAndDecrement() Gets and decrements current value of atomic long.
long	getAndIncrement() Gets and increments current value of atomic long.
long	getAndSet(long l) Gets current value of atomic long and sets new value l of atomic long.
long	incrementAndGet() Increments and gets current value of atomic long.
GridCacheInternalKey	key() Get current atomic long key.
String	name() Name of atomic long.
void	onInvalid(Exception err)
boolean	onRemoved() Set status of data structure as removed.
void	readExternal(ObjectInput in)
boolean	removed() Gets status of atomic.
String	toString()
void	writeExternal(ObjectOutput out)

Methods inherited from class java.lang.Object

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

Constructor Detail

GridCacheAtomicLongImpl

public GridCacheAtomicLongImpl()

Empty constructor required by Externalizable.

GridCacheAtomicLongImpl

public GridCacheAtomicLongImpl(String name,
                       GridCacheInternalKey key,
                       GridCacheProjection<GridCacheInternalKey,GridCacheAtomicLongValue> atomicView,
                       GridCacheContext ctx)

Default constructor.

Parameters:

name - Atomic long name.

key - Atomic long key.

atomicView - Atomic projection.

ctx - CacheContext.

Method Detail

name

public String name()

Name of atomic long.

Specified by:

name in interface GridCacheAtomicLong

Returns:

Name of atomic long.

get

public long get()
         throws GridException

Gets current value of atomic long.

Specified by:

get in interface GridCacheAtomicLong

Returns:

Current value of atomic long.

Throws:

GridException - If operation failed.

incrementAndGet

public long incrementAndGet()
                     throws GridException

Increments and gets current value of atomic long.

Specified by:

incrementAndGet in interface GridCacheAtomicLong

Returns:

Value.

Throws:

GridException - If operation failed.

getAndIncrement

public long getAndIncrement()
                     throws GridException

Gets and increments current value of atomic long.

Specified by:

getAndIncrement in interface GridCacheAtomicLong

Returns:

Value.

Throws:

GridException - If operation failed.

addAndGet

public long addAndGet(long l)
               throws GridException

Adds l and gets current value of atomic long.

Specified by:

addAndGet in interface GridCacheAtomicLong

Parameters:

l - Number which will be added.

Returns:

Value.

Throws:

GridException - If operation failed.

getAndAdd

public long getAndAdd(long l)
               throws GridException

Gets current value of atomic long and adds l.

Specified by:

getAndAdd in interface GridCacheAtomicLong

Parameters:

l - Number which will be added.

Returns:

Value.

Throws:

GridException - If operation failed.

decrementAndGet

public long decrementAndGet()
                     throws GridException

Decrements and gets current value of atomic long.

Specified by:

decrementAndGet in interface GridCacheAtomicLong

Returns:

Value.

Throws:

GridException - If operation failed.

getAndDecrement

public long getAndDecrement()
                     throws GridException

Gets and decrements current value of atomic long.

Specified by:

getAndDecrement in interface GridCacheAtomicLong

Returns:

Value.

Throws:

GridException - If operation failed.

getAndSet

public long getAndSet(long l)
               throws GridException

Gets current value of atomic long and sets new value l of atomic long.

Specified by:

getAndSet in interface GridCacheAtomicLong

Parameters:

l - New value of atomic long.

Returns:

Value.

Throws:

GridException - If operation failed.

compareAndSet

public boolean compareAndSet(long expVal,
                    long newVal)
                      throws GridException

Atomically compares current value to the expected value, and if they are equal, sets current value to new value.

Specified by:

compareAndSet in interface GridCacheAtomicLong

Parameters:

expVal - Expected atomic long's value.

newVal - New atomic long's value to set if current value equal to expected value.

Returns:

True if comparison succeeded, false otherwise.

Throws:

GridException - If failed.

onRemoved

public boolean onRemoved()

Set status of data structure as removed.

Specified by:

onRemoved in interface GridCacheRemovable

Returns:

Current status.

onInvalid

public void onInvalid(@Nullable
             Exception err)

Specified by:

onInvalid in interface GridCacheRemovable

Parameters:

err - Error which cause data structure to become invalid.

key

public GridCacheInternalKey key()

Get current atomic long key.

Specified by:

key in interface GridCacheAtomicLongEx

Returns:

Atomic long key.

removed

public boolean removed()

Gets status of atomic.

Specified by:

removed in interface GridCacheAtomicLong

Returns:

true if atomic was removed from cache, false in other case.

writeExternal

public void writeExternal(ObjectOutput out)
                   throws IOException

Specified by:

writeExternal in interface Externalizable

Throws:

IOException

readExternal

public void readExternal(ObjectInput in)
                  throws IOException,
                         ClassNotFoundException

Specified by:

readExternal in interface Externalizable

Throws:

IOException

ClassNotFoundException

toString

public String toString()

Overrides:

toString in class Object