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

Class UngroupedDoubleArrayColumnSource

java.lang.Object
io.deephaven.engine.table.impl.AbstractColumnSource<T>
io.deephaven.engine.table.impl.sources.UngroupedColumnSource<Double>
io.deephaven.engine.table.impl.sources.UngroupedDoubleArrayColumnSource
All Implemented Interfaces:
ChunkSource<Values>, ChunkSource.WithPrev<Values>, ColumnSource<Double>, ElementSource<Double>, FillContextMaker, GetContextMaker, ColumnSourceGetDefaults.ForDouble, DefaultChunkSource<Values>, DefaultChunkSource.WithPrev<Values>, MutableColumnSource<Double>, MutableColumnSourceGetDefaults.ForDouble, Releasable, TupleExporter<Double>, TupleSource<Double>
public class UngroupedDoubleArrayColumnSource extends UngroupedColumnSource<Double> implements MutableColumnSourceGetDefaults.ForDouble

  • Constructor Details

    • UngroupedDoubleArrayColumnSource

      public UngroupedDoubleArrayColumnSource(ColumnSource<double[]> innerSource)

  • Method Details

    • getComponentType

      public Class<?> getComponentType()
      Specified by:
      getComponentType in interface ColumnSource<Double>
      Overrides:
      getComponentType in class AbstractColumnSource<Double>

    • getDouble

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

    • getPrevDouble

      public 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<Double>
      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

    • isImmutable

      public 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<Double>
      Specified by:
      isImmutable in interface MutableColumnSource<Double>
      Returns:
      true if the values at a given row key of the column source never change, false otherwise

    • isStateless

      public boolean isStateless()
      Description copied from interface: ColumnSource
      Most column sources will return the same value for a given row without respect to the order that the rows are read. Those columns sources are considered "stateless" and should return true. Some column sources, however may be dependent on evaluation order. For example, a formula that updates a Map must be evaluated from the first row to the last row. A column source that has the potential to depend on the order of evaluation must return false.
      Specified by:
      isStateless in interface ColumnSource<Double>
      Returns:
      true if this is a stateless column source