Package io.deephaven.engine.table.impl.sources

Class BooleanSparseArraySource.ReinterpretedAsByte

java.lang.Object
io.deephaven.engine.table.impl.AbstractColumnSource<Byte>
io.deephaven.engine.table.impl.sources.BooleanSparseArraySource.ReinterpretedAsByte
All Implemented Interfaces:
ChunkSink<Values>, ChunkSource<Values>, ChunkSource.WithPrev<Values>, ColumnSource<Byte>, ElementSource<Byte>, FillContextMaker, GetContextMaker, ColumnSourceGetDefaults.ForByte, DefaultChunkSource<Values>, DefaultChunkSource.WithPrev<Values>, MutableColumnSource<Byte>, MutableColumnSourceGetDefaults.ForByte, FillUnordered<Values>, Releasable, TupleExporter<Byte>, TupleSource<Byte>, WritableColumnSource<Byte>, WritableSourceWithPrepareForParallelPopulation
Enclosing class:
BooleanSparseArraySource
public static class BooleanSparseArraySource.ReinterpretedAsByte extends AbstractColumnSource<Byte> implements MutableColumnSourceGetDefaults.ForByte, FillUnordered<Values>, WritableColumnSource<Byte>, WritableSourceWithPrepareForParallelPopulation

  • Method Details

    • shift

      public void shift(RowSet keysToShift, long shiftDelta)

    • startTrackingPrevValues

      public void startTrackingPrevValues()
      Description copied from interface: ColumnSource
      ColumnSource implementations that track previous values have the option to not actually start tracking previous values until this method is called. This is an option, not an obligation: some simple ColumnSource implementations (like TSingleValueSource for various T) always track previous values; other implementations (like PrevColumnSource) never do; some (like TArrayColumnSource) only start tracking once this method is called. An immutable column source can not have distinct prev values; therefore it is implemented as a no-op.
      Specified by:
      startTrackingPrevValues in interface ColumnSource<Byte>

    • getByte

      public byte getByte(long rowKey)
      Description copied from interface: ElementSource
      Get the value at the rowKey as a byte. RowKeys that are not present are undefined.
      Specified by:
      getByte in interface ElementSource<Byte>
      Parameters:
      rowKey - the location in key space to get the value from.
      Returns:
      the boolean at the rowKey, null values are represented by QueryConstants.NULL_BYTE

    • getPrevByte

      public byte getPrevByte(long rowKey)
      Description copied from interface: ElementSource
      Get the previous value at the rowKey as a byte. See ElementSource.getPrev(long) for more details. RowKeys that were not present are undefined.
      Specified by:
      getPrevByte in interface ElementSource<Byte>
      Parameters:
      rowKey - the location in key space to get the previous value from.
      Returns:
      the previous boolean at the rowKey, null values are represented by QueryConstants.NULL_BYTE

    • setNull

      public void setNull(long key)
      Specified by:
      setNull in interface WritableColumnSource<Byte>

    • set

      public void set(long key, Byte value)
      Specified by:
      set in interface WritableColumnSource<Byte>

    • set

      public void set(long key, byte value)
      Specified by:
      set in interface WritableColumnSource<Byte>

    • ensureCapacity

      public void ensureCapacity(long capacity, boolean nullFilled)
      Description copied from interface: WritableColumnSource
      Ensure that this WritableColumnSource can accept row keys in range [0, capacity).
      Specified by:
      ensureCapacity in interface WritableColumnSource<Byte>
      Parameters:
      capacity - The new minimum capacity
      nullFilled - Whether data should be "null-filled". If true, get operations at row keys that have not been set will return the appropriate null value; otherwise such gets produce undefined results.

    • allowsReinterpret

      public <ALTERNATE_DATA_TYPE> boolean allowsReinterpret(@NotNull @NotNull Class<ALTERNATE_DATA_TYPE> alternateDataType)
      Description copied from interface: ColumnSource
      Test if a reinterpret call will succeed.
      Specified by:
      allowsReinterpret in interface ColumnSource<Byte>
      Overrides:
      allowsReinterpret in class AbstractColumnSource<Byte>
      Parameters:
      alternateDataType - The alternative type to consider
      Returns:
      If a reinterpret on this column source with the supplied alternateDataType will succeed.

    • doReinterpret

      protected <ALTERNATE_DATA_TYPE> ColumnSource<ALTERNATE_DATA_TYPE> doReinterpret(@NotNull @NotNull Class<ALTERNATE_DATA_TYPE> alternateDataType)
      Description copied from class: AbstractColumnSource
      Supply allowed reinterpret results. The default implementation handles the most common case to avoid code duplication.
      Overrides:
      doReinterpret in class AbstractColumnSource<Byte>
      Parameters:
      alternateDataType - The alternate data type
      Returns:
      The resulting ColumnSource

    • fillChunk

      public void fillChunk(@NotNull ChunkSource.FillContext context, @NotNull @NotNull WritableChunk<? super Values> destination, @NotNull @NotNull RowSequence RowSequence)
      Description copied from interface: ChunkSource
      Populates the given destination chunk with data corresponding to the keys from the given RowSequence.
      Specified by:
      fillChunk in interface ChunkSource<Values>
      Overrides:
      fillChunk in class AbstractColumnSource<Byte>
      Parameters:
      context - A context containing all mutable/state related data used in retrieving the Chunk.
      destination - The chunk to be populated according to rowSequence. No assumptions shall be made about the size of the chunk shall be made. The chunk will be populated from position [0,rowSequence.size()).
      RowSequence - An RowSequence representing the keys to be fetched

    • fillPrevChunk

      public void fillPrevChunk(@NotNull ChunkSource.FillContext context, @NotNull @NotNull WritableChunk<? super Values> destination, @NotNull @NotNull RowSequence RowSequence)
      Description copied from interface: ChunkSource.WithPrev
      Populates the given destination chunk with data corresponding to the keys from the given RowSequence.
      Specified by:
      fillPrevChunk in interface ChunkSource.WithPrev<Values>
      Overrides:
      fillPrevChunk in class AbstractColumnSource<Byte>
      Parameters:
      context - A context containing all mutable/state related data used in retrieving the Chunk.
      destination - The chunk to be populated according to rowSequence. No assumptions shall be made about the size of the chunk shall be made. The chunk will be populated from position [0,rowSequence.size()).
      RowSequence - An RowSequence representing the keys to be fetched

    • fillChunkUnordered

      public void fillChunkUnordered(@NotNull @NotNull ChunkSource.FillContext context, @NotNull @NotNull WritableChunk<? super Values> destination, @NotNull @NotNull LongChunk<? extends RowKeys> keyIndices)
      Description copied from interface: FillUnordered
      Populates a contiguous portion of the given destination chunk with data corresponding to the keys from the given LongChunk.

      It behaves as if the following code were executed: 

       destination.setSize(keys.size());
 for (int ii = 0; ii < keys.size(); ++ii) {
     destination.set(ii, get(keys.get(ii)));
 }
      Specified by:
      fillChunkUnordered in interface FillUnordered<Values>
      Parameters:
      context - A context containing all mutable/state related data used in retrieving the Chunk.
      destination - The chunk to be populated according to keys
      keyIndices - A chunk of individual, not assumed to be ordered keys to be fetched

    • fillPrevChunkUnordered

      public void fillPrevChunkUnordered(@NotNull @NotNull ChunkSource.FillContext context, @NotNull @NotNull WritableChunk<? super Values> destination, @NotNull @NotNull LongChunk<? extends RowKeys> keyIndices)
      Description copied from interface: FillUnordered
      Populates a contiguous portion of the given destination chunk with prev data corresponding to the keys from the given LongChunk.

      It behaves as if the following code were executed: 

       destination.setSize(keys.size());
 for (int ii = 0; ii < keys.size(); ++ii) {
     destination.set(ii, getPrev(keys.get(ii)));
 }
      Specified by:
      fillPrevChunkUnordered in interface FillUnordered<Values>
      Parameters:
      context - A context containing all mutable/state related data used in retrieving the Chunk.
      destination - The chunk to be populated according to keys
      keyIndices - A chunk of individual, not assumed to be ordered keys to be fetched

    • providesFillUnordered

      public boolean providesFillUnordered()
      Description copied from interface: FillUnordered
      Returns true if this column source can efficiently provide an unordered fill. If this method returns false, then fillChunkUnordered and fillPrevChunkUnordered may throw an UnsupportedOperationException.
      Specified by:
      providesFillUnordered in interface FillUnordered<Values>
      Returns:
      if this column source can provide an unordered fill

    • fillFromChunk

      public void fillFromChunk(@NotNull @NotNull ChunkSink.FillFromContext context_unused, @NotNull @NotNull Chunk<? extends Values> src, @NotNull @NotNull RowSequence RowSequence)
      Description copied from interface: WritableColumnSource
      Our default, inefficient, implementation. Inheritors who care should provide a better implementation.
      Specified by:
      fillFromChunk in interface ChunkSink<Values>
      Specified by:
      fillFromChunk in interface WritableColumnSource<Byte>
      Parameters:
      context_unused - A context containing all mutable/state related data used in writing the Chunk.
      src - The source of the data rowSequence
      RowSequence - An RowSequence representing the keys to be written

    • prepareForParallelPopulation

      public void prepareForParallelPopulation(RowSequence rowSequence)
      Description copied from interface: WritableSourceWithPrepareForParallelPopulation
      Prepare this column source such that:
      • all values in rowSet may be accessed using getPrev
      • all values in rowSet may be populated in parallel

      Further operations in this cycle need not check for previous when writing data to the column source; you must provide a row set that contains every row that may be written to this column source.

      Specified by:
      prepareForParallelPopulation in interface WritableSourceWithPrepareForParallelPopulation
      Parameters:
      rowSequence - the row sequence of values that will change on this cycle