Package com.qfs.chunk

Interface IConcurrentChunkLong

All Superinterfaces:

IArray, IArrayReader, IArrayWriter, IChunk<Long>, IChunkLong, IMemoryMonitored, IWritableArray

All Known Implementing Classes:

ArrayChunkLong, ArrayChunkLongNullable, DirectChunkLong

public interface IConcurrentChunkLong
extends IChunkLong

An IChunkLong that supports some additional operations that are relevant for concurrent programming.

Author:

ActiveViam

Field Summary

Fields inherited from interface com.qfs.chunk.IChunk

NO_SIZE_LIMIT

Method Summary

Modifier and Type	Method	Description
boolean	compareAndSet(int position, long expectedValue, long updatedValue)	Atomically sets the given position of this chunk to the given updated value if the current value stored at this position equals the expected value.
long	readLongVolatile(int position)	Reads a long primitive value from this chunk in a volatile fashion.
void	writeLongVolatile(int position, long value)	Writes a long primitive value in this chunk in a volatile fashion.

Methods inherited from interface com.qfs.chunk.IArrayReader

isNull, readBoolean, readInt, readVector

Methods inherited from interface com.qfs.chunk.IArrayWriter

addDouble, addFloat, addInt, addLong, writeBoolean, writeDouble, writeFloat

Methods inherited from interface com.qfs.chunk.IChunk

capacity, compress, createArrayCursor, destroy, findRowsEqualTo, findRowsEqualTo, findRowsEqualTo, findRowsInSet, findRowsInSet, findRowsInSet, findRowsInTransactionEqualTo, findRowsInTransactionEqualTo, findRowsInTransactionEqualTo, findRowsInTransactionInSet, findRowsInTransactionInSet, findRowsInTransactionInSet, freeRow, getChunkCreatorForSparse, getChunkId, getChunkType, getPhysicalSize, isDead, localRow, replaceBy, reset, sparseChunkCompression

Methods inherited from interface com.qfs.chunk.IChunkLong

copyInto, createFrequentValueChunk, equals, fill, getBindingType, isPrimitive, read, readDouble, readFloat, readLong, transfer, write, writeFromCell, writeInt, writeLong

Methods inherited from interface com.qfs.monitoring.memory.IMemoryMonitored

getMemoryStatistic

Method Detail

writeLongVolatile

void writeLongVolatile(int position,
                       long value)

Writes a long primitive value in this chunk in a volatile fashion.

Parameters:

position - the position to write the value to

value - the value to write

See Also:

IChunkLong.writeLong(int, long)

readLongVolatile

long readLongVolatile(int position)

Reads a long primitive value from this chunk in a volatile fashion.

An exception will be thrown if the value is not of the right type.

Parameters:

position - the position to read the value from

Returns:

the value stored at the given position

See Also:

IChunkLong.readLong(int)

compareAndSet

boolean compareAndSet(int position,
                      long expectedValue,
                      long updatedValue)

Atomically sets the given position of this chunk to the given updated value if the current value stored at this position equals the expected value.

Parameters:

position - the position to update

expectedValue - the expected value

updatedValue - the new value

Returns:

true if successful, or false if the actual value was not equal to the expected value