Package com.qfs.chunk

Interface IConcurrentChunkInteger

All Superinterfaces:

IArray, IArrayReader, IArrayWriter, IChunk<Integer>, IChunkInteger, IMemoryMonitored, IWritableArray

All Known Implementing Classes:

ArrayChunkInteger, ArrayChunkIntegerNullable, DirectChunkInteger

public interface IConcurrentChunkInteger
extends IChunkInteger

An IChunkInteger 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, int expectedValue, int 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.
int	readIntVolatile(int position)	Reads an int primitive value from this chunk in a volatile fashion.
void	writeIntVolatile(int position, int value)	Writes an int primitive value in this chunk in a volatile fashion.

Methods inherited from interface com.qfs.chunk.IArrayReader

isNull, readBoolean, readVector

Methods inherited from interface com.qfs.chunk.IArrayWriter

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

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.IChunkInteger

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

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

getMemoryStatistic

Method Detail

writeIntVolatile

void writeIntVolatile(int position,
                      int value)

Writes an int 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:

IChunkInteger.writeInt(int, int)

readIntVolatile

int readIntVolatile(int position)

Reads an int 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:

IChunkInteger.readInt(int)

compareAndSet

boolean compareAndSet(int position,
                      int expectedValue,
                      int 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