Package io.deephaven.engine.table.impl.util.freezeby

Class FreezeByCountOperator

java.lang.Object

io.deephaven.engine.table.impl.util.freezeby.FreezeByCountOperator

All Implemented Interfaces:

IterativeChunkedAggregationOperator

public class FreezeByCountOperator
extends Object
implements IterativeChunkedAggregationOperator

Nested Class Summary

Nested classes/interfaces inherited from interface io.deephaven.engine.table.impl.by.IterativeChunkedAggregationOperator

IterativeChunkedAggregationOperator.BucketedContext, IterativeChunkedAggregationOperator.SingletonContext

Field Summary

Fields inherited from interface io.deephaven.engine.table.impl.by.IterativeChunkedAggregationOperator

ZERO_LENGTH_ITERATIVE_CHUNKED_AGGREGATION_OPERATOR_ARRAY

Constructor Summary

Constructors

Constructor	Description
FreezeByCountOperator()

Method Summary

Modifier and Type	Method	Description
void	addChunk(IterativeChunkedAggregationOperator.BucketedContext context, Chunk<? extends Values> values, LongChunk<? extends RowKeys> inputRowKeys, IntChunk<RowKeys> destinations, IntChunk<ChunkPositions> startPositions, IntChunk<ChunkLengths> length, WritableBooleanChunk<Values> stateModified)	Aggregate a chunk of data into the result columns.
boolean	addChunk(IterativeChunkedAggregationOperator.SingletonContext context, int chunkSize, Chunk<? extends Values> values, LongChunk<? extends RowKeys> inputRowKeys, long destination)	Aggregate a chunk of data into the result columns.
void	ensureCapacity(long tableSize)	Ensure that this operator can handle destinations up to tableSize - 1.
Map<String,? extends ColumnSource<?>>	getResultColumns()	Return a map of result columns produced by this operator.
void	removeChunk(IterativeChunkedAggregationOperator.BucketedContext context, Chunk<? extends Values> values, LongChunk<? extends RowKeys> inputRowKeys, IntChunk<RowKeys> destinations, IntChunk<ChunkPositions> startPositions, IntChunk<ChunkLengths> length, WritableBooleanChunk<Values> stateModified)	Remove a chunk of data previously aggregated into the result columns.
boolean	removeChunk(IterativeChunkedAggregationOperator.SingletonContext context, int chunkSize, Chunk<? extends Values> values, LongChunk<? extends RowKeys> inputRowKeys, long destination)	Remove a chunk of data previously aggregated into the result columns.
void	startTrackingPrevValues()	Called after initialization; when the operator's result columns must have previous tracking enabled.

Methods inherited from class java.lang.Object

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

Methods inherited from interface io.deephaven.engine.table.impl.by.IterativeChunkedAggregationOperator

addRowSet, initializeRefreshing, makeBucketedContext, makeSingletonContext, modifyChunk, modifyChunk, modifyRowKeys, modifyRowKeys, propagateFailure, propagateInitialState, propagateUpdates, requiresRowKeys, requiresRunFinds, resetForStep, shiftChunk, shiftChunk, unchunkedRowSet

Constructor Details

FreezeByCountOperator

public FreezeByCountOperator()

Method Details

addChunk

public void addChunk(IterativeChunkedAggregationOperator.BucketedContext context,
 Chunk<? extends Values> values,
 LongChunk<? extends RowKeys> inputRowKeys,
 IntChunk<RowKeys> destinations,
 IntChunk<ChunkPositions> startPositions,
 IntChunk<ChunkLengths> length,
 WritableBooleanChunk<Values> stateModified)

Description copied from interface: IterativeChunkedAggregationOperator

Aggregate a chunk of data into the result columns.

Specified by:

addChunk in interface IterativeChunkedAggregationOperator

Parameters:

context - the operator-specific context

values - a chunk of values to aggregate

inputRowKeys - the input row keys, in post-shift space

destinations - the destinations in resultColumn to aggregate into, parallel with startPositions and length

startPositions - the starting positions in the chunk for each destination

length - the number of values in the chunk for each destination

stateModified - a boolean output array, parallel to destinations, which is set to true if the corresponding destination has been modified

removeChunk

public void removeChunk(IterativeChunkedAggregationOperator.BucketedContext context,
 Chunk<? extends Values> values,
 LongChunk<? extends RowKeys> inputRowKeys,
 IntChunk<RowKeys> destinations,
 IntChunk<ChunkPositions> startPositions,
 IntChunk<ChunkLengths> length,
 WritableBooleanChunk<Values> stateModified)

Description copied from interface: IterativeChunkedAggregationOperator

Remove a chunk of data previously aggregated into the result columns.

Specified by:

removeChunk in interface IterativeChunkedAggregationOperator

Parameters:

context - the operator-specific context

values - a chunk of values that have been previously aggregated.

inputRowKeys - the input row keys, in pre-shift space

destinations - the destinations in resultColumn to remove the values from, parallel with startPositions and length

startPositions - the starting positions in the chunk for each destination

length - the number of values in the chunk for each destination

stateModified - a boolean output array, parallel to destinations, which is set to true if the corresponding destination has been modified

addChunk

public boolean addChunk(IterativeChunkedAggregationOperator.SingletonContext context,
 int chunkSize,
 Chunk<? extends Values> values,
 LongChunk<? extends RowKeys> inputRowKeys,
 long destination)

Description copied from interface: IterativeChunkedAggregationOperator

Aggregate a chunk of data into the result columns.

Specified by:

addChunk in interface IterativeChunkedAggregationOperator

Parameters:

context - the operator-specific context

chunkSize - the size of the addition

values - the values to aggregate

inputRowKeys - the input row keys, in post-shift space

destination - the destination in the result columns

Returns:

true if the state was modified, false otherwise

removeChunk

public boolean removeChunk(IterativeChunkedAggregationOperator.SingletonContext context,
 int chunkSize,
 Chunk<? extends Values> values,
 LongChunk<? extends RowKeys> inputRowKeys,
 long destination)

Description copied from interface: IterativeChunkedAggregationOperator

Remove a chunk of data previously aggregated into the result columns.

Specified by:

removeChunk in interface IterativeChunkedAggregationOperator

Parameters:

context - the operator-specific context

chunkSize - the size of the removal

values - the values to remove from the aggregation

inputRowKeys - the input row keys, in pre-shift space

destination - the destination in the result columns

Returns:

true if the state was modified, false otherwise

ensureCapacity

public void ensureCapacity(long tableSize)

Description copied from interface: IterativeChunkedAggregationOperator

Ensure that this operator can handle destinations up to tableSize - 1.

Specified by:

ensureCapacity in interface IterativeChunkedAggregationOperator

Parameters:

tableSize - the new size of the table

getResultColumns

public Map<String,? extends ColumnSource<?>> getResultColumns()

Description copied from interface: IterativeChunkedAggregationOperator

Return a map of result columns produced by this operator.

Specified by:

getResultColumns in interface IterativeChunkedAggregationOperator

Returns:

a map of name to columns for the result table

startTrackingPrevValues

public void startTrackingPrevValues()

Description copied from interface: IterativeChunkedAggregationOperator

Called after initialization; when the operator's result columns must have previous tracking enabled.

Specified by:

startTrackingPrevValues in interface IterativeChunkedAggregationOperator