Package io.deephaven.engine.table.impl

Interface ImmutableColumnSource<DATA_TYPE>

All Superinterfaces:
ChunkSource<Values>, ChunkSource.WithPrev<Values>, ColumnSource<DATA_TYPE>, ElementSource<DATA_TYPE>, FillContextMaker, GetContextMaker, Releasable, TupleExporter<DATA_TYPE>, TupleSource<DATA_TYPE>
All Known Subinterfaces:
ImmutableColumnSourceGetDefaults.ForBoolean, ImmutableColumnSourceGetDefaults.ForByte, ImmutableColumnSourceGetDefaults.ForChar, ImmutableColumnSourceGetDefaults.ForDouble, ImmutableColumnSourceGetDefaults.ForFloat, ImmutableColumnSourceGetDefaults.ForInt, ImmutableColumnSourceGetDefaults.ForLong, ImmutableColumnSourceGetDefaults.ForLongAsInstant, ImmutableColumnSourceGetDefaults.ForObject<DATA_TYPE>, ImmutableColumnSourceGetDefaults.ForShort, ImmutableColumnSourceGetDefaults.LongBacked<DATA_TYPE>, RegionedColumnSource<DATA_TYPE>
All Known Implementing Classes:
AbstractColumnSource.DefaultedImmutable, ArrowBooleanColumnSource, ArrowByteColumnSource, ArrowCharColumnSource, ArrowDoubleColumnSource, ArrowFloatColumnSource, ArrowInstantColumnSource, ArrowIntColumnSource, ArrowLocalTimeColumnSource, ArrowLongColumnSource, ArrowObjectColumnSource, ArrowShortColumnSource, ArrowStringColumnSource, ArrowUInt1ColumnSource, ArrowUInt4ColumnSource, ArrowUInt8ColumnSource, ByteChunkColumnSource, CharChunkColumnSource, DoubleChunkColumnSource, FloatChunkColumnSource, Immutable2DByteArraySource, Immutable2DCharArraySource, Immutable2DDoubleArraySource, Immutable2DFloatArraySource, Immutable2DInstantArraySource, Immutable2DIntArraySource, Immutable2DLongArraySource, Immutable2DObjectArraySource, Immutable2DShortArraySource, Immutable2DZonedDateTimeArraySource, ImmutableByteArraySource, ImmutableCharArraySource, ImmutableConstantByteSource, ImmutableConstantCharSource, ImmutableConstantDoubleSource, ImmutableConstantFloatSource, ImmutableConstantInstantSource, ImmutableConstantIntSource, ImmutableConstantLongSource, ImmutableConstantObjectSource, ImmutableConstantShortSource, ImmutableConstantZonedDateTimeSource, ImmutableDoubleArraySource, ImmutableFloatArraySource, ImmutableInstantArraySource, ImmutableIntArraySource, ImmutableLongArraySource, ImmutableObjectArraySource, ImmutableShortArraySource, ImmutableZonedDateTimeArraySource, IntChunkColumnSource, LongChunkColumnSource, ObjectChunkColumnSource, RowKeyColumnSource, ShortChunkColumnSource, SingleValueObjectColumnSource, SymbolTableToUniqueIdSource
public interface ImmutableColumnSource<DATA_TYPE> extends ColumnSource<DATA_TYPE>
Sub-interface of ColumnSource for implementations that always use return true from isImmutable() and delegate all getPrev* methods to their current (non-previous) equivalents.

  • Method Details

    • getPrev

      default DATA_TYPE getPrev(long rowKey)
      Description copied from interface: ElementSource
      Get the previous value at the rowKey. Previous values are used during an UG update cycle to process changes in data. During normal operation previous values will be identical to current values. RowKeys that were not present are undefined.
      Specified by:
      getPrev in interface ElementSource<DATA_TYPE>
      Parameters:
      rowKey - the location in key space to get the value from.
      Returns:
      the previous value at the rowKey, potentially null.

    • getPrevBoolean

      default Boolean getPrevBoolean(long rowKey)
      Description copied from interface: ElementSource
      Get the previous value at the rowKey as a Boolean. See ElementSource.getPrev(long) for more details. RowKeys that were not present are undefined.
      Specified by:
      getPrevBoolean in interface ElementSource<DATA_TYPE>
      Parameters:
      rowKey - the location in key space to get the previous value from.
      Returns:
      the previous boolean at the rowKey, potentially null.

    • getPrevByte

      default 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<DATA_TYPE>
      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

    • getPrevChar

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

    • getPrevDouble

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

    • getPrevFloat

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

    • getPrevInt

      default int getPrevInt(long rowKey)
      Description copied from interface: ElementSource
      Get the previous value at the rowKey as an int. See ElementSource.getPrev(long) for more details. RowKeys that were not present are undefined.
      Specified by:
      getPrevInt in interface ElementSource<DATA_TYPE>
      Parameters:
      rowKey - the location in key space to get the previous value from.
      Returns:
      the previous int at the rowKey, null values are represented by QueryConstants.NULL_INT

    • getPrevLong

      default long getPrevLong(long rowKey)
      Description copied from interface: ElementSource
      Get the previous value at the rowKey as a long. See ElementSource.getPrev(long) for more details.
      Specified by:
      getPrevLong in interface ElementSource<DATA_TYPE>
      Parameters:
      rowKey - the location in key space to get the previous value from.
      Returns:
      the previous long at the rowKey, null values are represented by QueryConstants.NULL_LONG

    • getPrevShort

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

    • isImmutable

      default boolean isImmutable()
      Description copied from interface: ColumnSource
      Determine if this column source is immutable, meaning that the values at a given row key never change.
      Specified by:
      isImmutable in interface ColumnSource<DATA_TYPE>
      Returns:
      true if the values at a given row key of the column source never change, false otherwise