Package com.illumon.iris.db.v2.utils.copy

Class ObjectCopyKernel

java.lang.Object

com.illumon.iris.db.v2.utils.copy.ObjectCopyKernel

All Implemented Interfaces:

CopyKernel

public class ObjectCopyKernel
extends Object
implements CopyKernel

Nested Class Summary

Nested classes/interfaces inherited from interface com.illumon.iris.db.v2.utils.copy.CopyKernel

CopyKernel.Utils

Field Summary

Fields

Modifier and Type	Field	Description
static final ObjectCopyKernel	INSTANCE

Method Summary

Modifier and Type	Method	Description
<T extends Attributes.Any> void	conditionalCopy(WritableChunk<T> output, Object baseInput, Object overInput, long[] useOverInput, int srcOffset, int dstOffset, int length)	Copy values from baseInput / overInput into output.
static <T extends Attributes.Any> void	conditionalCopy(WritableObjectChunk<Object,T> output, Object[] baseInput, Object[] overInput, long[] useOverInput, int srcOffset, int dstOffset, int length)	Copy values from baseInput / overInput into output.

Methods inherited from class java.lang.Object

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

Field Details

INSTANCE

public static final ObjectCopyKernel INSTANCE

Method Details

conditionalCopy

public static <T extends Attributes.Any> void conditionalCopy(WritableObjectChunk<Object,T> output,
 Object[] baseInput,
 Object[] overInput,
 long[] useOverInput,
 int srcOffset,
 int dstOffset,
 int length)

Copy values from baseInput / overInput into output.

Pseudo-implementation: output[i] = useOverInput.forBit(i) ? overInput[i] : baseInput[i];

Note that useOverInput should cover the same data range as baseInput such that useOverInput.length == (overInput.length + 63) / 64 is true.

Parameters:

output - the output chunk

baseInput - the input array to use when bit in useOverInput is zero (array)

overInput - the input array to use when bit in useOverInput is one (array)

useOverInput - the bitset array to indicate whether to use baseInput or overInput for each element

srcOffset - the offset in baseInput/overInput

dstOffset - the offset in output

length - the number of elements to copy

conditionalCopy

public <T extends Attributes.Any> void conditionalCopy(WritableChunk<T> output,
 Object baseInput,
 Object overInput,
 long[] useOverInput,
 int srcOffset,
 int dstOffset,
 int length)

Description copied from interface: CopyKernel

Copy values from baseInput / overInput into output.

Pseudo-implementation: output[i] = useOverInput.forBit(i) ? overInput[i] : baseInput[i];

Note that useOverInput should cover the same data range as baseInput such that useOverInput.length == (overInput.length + 63) / 64 is true.

Specified by:

conditionalCopy in interface CopyKernel

Parameters:

output - the output chunk

baseInput - the input array to use when bit in useOverInput is zero (array)

overInput - the input array to use when bit in useOverInput is one (array)

useOverInput - the bitset array to indicate whether to use baseInput or overInput for each element

srcOffset - the offset in baseInput/overInput

dstOffset - the offset in output

length - the number of elements to copy