Class CharDupExpandKernel
java.lang.Object
com.illumon.iris.db.v2.join.dupexpand.CharDupExpandKernel
- All Implemented Interfaces:
DupExpandKernel
public class CharDupExpandKernel extends Object implements DupExpandKernel
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Field Summary
Fields Modifier and Type Field Description static CharDupExpandKernel
INSTANCE
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Method Summary
Modifier and Type Method Description static void
expandDuplicates(int expandedSize, WritableCharChunk<? extends Attributes.Any> chunkToExpand, IntChunk<Attributes.ChunkLengths> keyRunLengths)
void
expandDuplicates(int expandedSize, WritableChunk<? extends Attributes.Any> chunkToExpand, IntChunk<Attributes.ChunkLengths> keyRunLengths)
Expands entries values from chunkToExpand in-place, using keyRunLengths to determine how many copies.
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Field Details
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Method Details
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expandDuplicates
public void expandDuplicates(int expandedSize, WritableChunk<? extends Attributes.Any> chunkToExpand, IntChunk<Attributes.ChunkLengths> keyRunLengths)Description copied from interface:DupExpandKernel
Expands entries values from chunkToExpand in-place, using keyRunLengths to determine how many copies. The keyRunLengths chunk is parallel to the original chunkToExpand; it is never modified.- Specified by:
expandDuplicates
in interfaceDupExpandKernel
- Parameters:
expandedSize
- the sum of all entries in keyRunLengthschunkToExpand
- the values to expand in-place (this writable chunk must have capacity >= expandedSize)keyRunLengths
- the key run-lengths parallel to chunkToExpand
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expandDuplicates
public static void expandDuplicates(int expandedSize, WritableCharChunk<? extends Attributes.Any> chunkToExpand, IntChunk<Attributes.ChunkLengths> keyRunLengths)
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