Package io.deephaven.engine.table.impl.by.ssmpercentile

Class ShortNetChangeKernel

java.lang.Object

io.deephaven.engine.table.impl.by.ssmpercentile.ShortNetChangeKernel

All Implemented Interfaces:

NetChangeKernel

public class ShortNetChangeKernel
extends Object
implements NetChangeKernel

NetChangeKernel for short values, ordered by ShortComparisons.compare(short, short). Only values with the same representation are netted; values that compare equal but differ in representation are both kept, so that the SSM replaces its representative when the old one is removed.

Method Summary

Modifier and Type	Method	Description
void	net(WritableChunk<Values> removes, WritableIntChunk<ChunkLengths> removeCounts, WritableChunk<Values> adds, WritableIntChunk<ChunkLengths> addCounts)	Subtract the common occurrences of each value from both inputs, then drop the values whose count reaches zero.

Methods inherited from class java.lang.Object

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

Method Details

net

public void net(WritableChunk<Values> removes,
 WritableIntChunk<ChunkLengths> removeCounts,
 WritableChunk<Values> adds,
 WritableIntChunk<ChunkLengths> addCounts)

Description copied from interface: NetChangeKernel

Subtract the common occurrences of each value from both inputs, then drop the values whose count reaches zero. Both inputs must be sorted and free of duplicates, as CompactKernel.compactAndCount leaves them, with parallel counts. On return both inputs are still sorted, and every count is positive.

Specified by:

net in interface NetChangeKernel

Parameters:

removes - the values removed, input and output

removeCounts - the number of times each value in removes was removed, input and output

adds - the values added, input and output

addCounts - the number of times each value in adds was added, input and output