Package com.illumon.iris.db.v2.sources

Class BitShiftingColumnSource<T>

java.lang.Object
com.illumon.iris.db.v2.sources.AbstractColumnSource<T>
com.illumon.iris.db.v2.sources.BitShiftingColumnSource<T>
All Implemented Interfaces:
ChunkSource<Attributes.Values>, ChunkSource.WithPrev<Attributes.Values>, DefaultChunkSource<Attributes.Values>, DefaultChunkSource.WithPrev<Attributes.Values>, FillContextMaker, GetContextMaker, ColumnSource<T>, ElementSource<T>, Releasable, UngroupableColumnSource, TupleExporter<T>, TupleSource<T>, Serializable
public class BitShiftingColumnSource<T> extends AbstractColumnSource<T> implements UngroupableColumnSource
See Also:

  • Constructor Details

  • Method Details

    • getComponentType

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

    • 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<T>

    • get

      public T get(long index)
      Description copied from interface: ElementSource
      Get the value from the source. This may return boxed values for basic types.
      Specified by:
      get in interface ElementSource<T>
      Parameters:
      index - the location in index space to get the value from.
      Returns:
      the value at the index, potentially null.

    • getBoolean

      public Boolean getBoolean(long index)
      Description copied from interface: ElementSource
      Get the value at the index as a Boolean.
      Specified by:
      getBoolean in interface ElementSource<T>
      Parameters:
      index - the location in index space to get the value from.
      Returns:
      the boolean at the index, potentially null.

    • getByte

      public byte getByte(long index)
      Description copied from interface: ElementSource
      Get the value at the index as a byte.
      Specified by:
      getByte in interface ElementSource<T>
      Parameters:
      index - the location in index space to get the value from.
      Returns:
      the boolean at the index, null values are represented by QueryConstants.NULL_BYTE

    • getChar

      public char getChar(long index)
      Description copied from interface: ElementSource
      Get the value at the index as a char.
      Specified by:
      getChar in interface ElementSource<T>
      Parameters:
      index - the location in index space to get the value from.
      Returns:
      the char at the index, null values are represented by QueryConstants.NULL_CHAR

    • getDouble

      public double getDouble(long index)
      Description copied from interface: ElementSource
      Get the value at the index as a double.
      Specified by:
      getDouble in interface ElementSource<T>
      Parameters:
      index - the location in index space to get the value from.
      Returns:
      the double at the index, null values are represented by QueryConstants.NULL_DOUBLE

    • getFloat

      public float getFloat(long index)
      Description copied from interface: ElementSource
      Get the value at the index as a float.
      Specified by:
      getFloat in interface ElementSource<T>
      Parameters:
      index - the location in index space to get the value from.
      Returns:
      the float at the index, null values are represented by QueryConstants.NULL_FLOAT

    • getInt

      public int getInt(long index)
      Description copied from interface: ElementSource
      Get the value at the index as an int.
      Specified by:
      getInt in interface ElementSource<T>
      Parameters:
      index - the location in index space to get the value from.
      Returns:
      the int at the index, null values are represented by QueryConstants.NULL_INT

    • getLong

      public long getLong(long index)
      Description copied from interface: ElementSource
      Get the value at the index as a long.
      Specified by:
      getLong in interface ElementSource<T>
      Parameters:
      index - the location in index space to get the value from.
      Returns:
      the long at the index, null values are represented by QueryConstants.NULL_LONG

    • getShort

      public short getShort(long index)
      Description copied from interface: ElementSource
      Get the value at the index as a short.
      Specified by:
      getShort in interface ElementSource<T>
      Parameters:
      index - the location in index space to get the value from.
      Returns:
      the short at the index, null values are represented by QueryConstants.NULL_SHORT

    • getPrev

      public T getPrev(long index)
      Description copied from interface: ElementSource
      Get the previous value at the index. Previous values are used during an LTM update cycle to process changes in data. During normal operation previous values will be identical to current values.
      Specified by:
      getPrev in interface ElementSource<T>
      Parameters:
      index - the location in index space to get the value from.
      Returns:
      the previous value at the index, or null.

    • getPrevBoolean

      public Boolean getPrevBoolean(long index)
      Description copied from interface: ElementSource
      Get the previous value at the index as a Boolean. See ElementSource.getPrev(long) for more details.
      Specified by:
      getPrevBoolean in interface ElementSource<T>
      Parameters:
      index - the location in index space to get the previous value from.
      Returns:
      the previous boolean at the index, or null.

    • getPrevByte

      public byte getPrevByte(long index)
      Description copied from interface: ElementSource
      Get the previous value at the index as a byte. See ElementSource.getPrev(long) for more details.
      Specified by:
      getPrevByte in interface ElementSource<T>
      Parameters:
      index - the location in index space to get the previous value from.
      Returns:
      the previous boolean at the index, null values are represented by QueryConstants.NULL_BYTE

    • getPrevChar

      public char getPrevChar(long index)
      Description copied from interface: ElementSource
      Get the previous value at the index as a char. See ElementSource.getPrev(long) for more details.
      Specified by:
      getPrevChar in interface ElementSource<T>
      Parameters:
      index - the location in index space to get the previous value from.
      Returns:
      the previous char at the index, null values are represented by QueryConstants.NULL_CHAR

    • getPrevDouble

      public double getPrevDouble(long index)
      Description copied from interface: ElementSource
      Get the previous value at the index as a double. See ElementSource.getPrev(long) for more details.
      Specified by:
      getPrevDouble in interface ElementSource<T>
      Parameters:
      index - the location in index space to get the previous value from.
      Returns:
      the previous double at the index, null values are represented by QueryConstants.NULL_DOUBLE

    • getPrevFloat

      public float getPrevFloat(long index)
      Description copied from interface: ElementSource
      Get the previous value at the index as a float. See ElementSource.getPrev(long) for more details.
      Specified by:
      getPrevFloat in interface ElementSource<T>
      Parameters:
      index - the location in index space to get the previous value from.
      Returns:
      the previous float at the index, null values are represented by QueryConstants.NULL_FLOAT

    • getPrevInt

      public int getPrevInt(long index)
      Description copied from interface: ElementSource
      Get the previous value at the index as an int. See ElementSource.getPrev(long) for more details.
      Specified by:
      getPrevInt in interface ElementSource<T>
      Parameters:
      index - the location in index space to get the previous value from.
      Returns:
      the previous int at the index, null values are represented by QueryConstants.NULL_INT

    • getPrevLong

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

    • getPrevShort

      public short getPrevShort(long index)
      Description copied from interface: ElementSource
      Get the previous value at the index as a short. See ElementSource.getPrev(long) for more details.
      Specified by:
      getPrevShort in interface ElementSource<T>
      Parameters:
      index - the location in index space to get the previous value from.
      Returns:
      the previous short at the index, null values are represented by QueryConstants.NULL_SHORT

    • isImmutable

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

    • isUngroupable

      public boolean isUngroupable()
      Description copied from interface: UngroupableColumnSource
      Does this particular instance of the column source support ungrouping?
      Specified by:
      isUngroupable in interface UngroupableColumnSource
      Returns:
      true if you can call the getUngrouped family of methods and get a valid answer.

    • getUngroupedSize

      public long getUngroupedSize(long columnIndex)
      Specified by:
      getUngroupedSize in interface UngroupableColumnSource
      Parameters:
      columnIndex - the index within this column to interrogate
      Returns:
      the size of the DbArray at columnIndex.

    • getUngroupedPrevSize

      public long getUngroupedPrevSize(long columnIndex)
      Specified by:
      getUngroupedPrevSize in interface UngroupableColumnSource

    • getUngrouped

      public T getUngrouped(long columnIndex, int arrayIndex)
      Description copied from interface: UngroupableColumnSource
      Reach into a grouped column source and pull one element out of the array.
      Specified by:
      getUngrouped in interface UngroupableColumnSource
      Parameters:
      columnIndex - the index within the column of the cell to get
      arrayIndex - the index within the array at the specified cell
      Returns:
      Equivalent to ((DbArray)columnSource.get(columnIndex)).get(arrayIndex)

    • getUngroupedPrev

      public T getUngroupedPrev(long columnIndex, int arrayIndex)
      Specified by:
      getUngroupedPrev in interface UngroupableColumnSource

    • getUngroupedBoolean

      public Boolean getUngroupedBoolean(long columnIndex, int arrayIndex)
      Specified by:
      getUngroupedBoolean in interface UngroupableColumnSource

    • getUngroupedPrevBoolean

      public Boolean getUngroupedPrevBoolean(long columnIndex, int arrayIndex)
      Specified by:
      getUngroupedPrevBoolean in interface UngroupableColumnSource

    • getUngroupedDouble

      public double getUngroupedDouble(long columnIndex, int arrayIndex)
      Specified by:
      getUngroupedDouble in interface UngroupableColumnSource

    • getUngroupedPrevDouble

      public double getUngroupedPrevDouble(long columnIndex, int arrayIndex)
      Specified by:
      getUngroupedPrevDouble in interface UngroupableColumnSource

    • getUngroupedFloat

      public float getUngroupedFloat(long columnIndex, int arrayIndex)
      Specified by:
      getUngroupedFloat in interface UngroupableColumnSource

    • getUngroupedPrevFloat

      public float getUngroupedPrevFloat(long columnIndex, int arrayIndex)
      Specified by:
      getUngroupedPrevFloat in interface UngroupableColumnSource

    • getUngroupedByte

      public byte getUngroupedByte(long columnIndex, int arrayIndex)
      Specified by:
      getUngroupedByte in interface UngroupableColumnSource

    • getUngroupedPrevByte

      public byte getUngroupedPrevByte(long columnIndex, int arrayIndex)
      Specified by:
      getUngroupedPrevByte in interface UngroupableColumnSource

    • getUngroupedChar

      public char getUngroupedChar(long columnIndex, int arrayIndex)
      Specified by:
      getUngroupedChar in interface UngroupableColumnSource

    • getUngroupedPrevChar

      public char getUngroupedPrevChar(long columnIndex, int arrayIndex)
      Specified by:
      getUngroupedPrevChar in interface UngroupableColumnSource

    • getUngroupedShort

      public short getUngroupedShort(long columnIndex, int arrayIndex)
      Specified by:
      getUngroupedShort in interface UngroupableColumnSource

    • getUngroupedPrevShort

      public short getUngroupedPrevShort(long columnIndex, int arrayIndex)
      Specified by:
      getUngroupedPrevShort in interface UngroupableColumnSource

    • getUngroupedInt

      public int getUngroupedInt(long columnIndex, int arrayIndex)
      Specified by:
      getUngroupedInt in interface UngroupableColumnSource

    • getUngroupedPrevInt

      public int getUngroupedPrevInt(long columnIndex, int arrayIndex)
      Specified by:
      getUngroupedPrevInt in interface UngroupableColumnSource

    • getUngroupedLong

      public long getUngroupedLong(long columnIndex, int arrayIndex)
      Specified by:
      getUngroupedLong in interface UngroupableColumnSource

    • getUngroupedPrevLong

      public long getUngroupedPrevLong(long columnIndex, int arrayIndex)
      Specified by:
      getUngroupedPrevLong in interface UngroupableColumnSource

    • releaseCachedResources

      public void releaseCachedResources()
      Description copied from interface: ColumnSource
      Release any resources held for caching purposes. Implementations need not guarantee that concurrent accesses are correct, as the purpose of this method is to ensure cleanup for column sources that will no longer be used.
      Specified by:
      releaseCachedResources in interface ColumnSource<T>
      Specified by:
      releaseCachedResources in interface Releasable

    • allowsReinterpret

      public <ALTERNATE_DATA_TYPE> boolean allowsReinterpret(@NotNull Class<ALTERNATE_DATA_TYPE> alternateDataType)
      Description copied from interface: ColumnSource
      Test if a reinterpret call will succeed.
      Specified by:
      allowsReinterpret in interface ColumnSource<T>
      Overrides:
      allowsReinterpret in class AbstractColumnSource<T>
      Type Parameters:
      ALTERNATE_DATA_TYPE - the dataType to inquire about
      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 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<T>
      Type Parameters:
      ALTERNATE_DATA_TYPE - the dataType to reinterpret to
      Parameters:
      alternateDataType - The alternate data type
      Returns:
      The resulting ColumnSource

    • makeFillContext

      public com.illumon.iris.db.v2.sources.BitShiftingColumnSource.FillContext makeFillContext(int chunkCapacity, SharedContext sharedContext)
      Description copied from interface: FillContextMaker
      Allocate a new ChunkSource.FillContext for filling chunks from this FillContextMaker, typically a ChunkSource.
      Specified by:
      makeFillContext in interface DefaultChunkSource<T>
      Specified by:
      makeFillContext in interface FillContextMaker
      Parameters:
      chunkCapacity - The maximum size of any WritableChunk that will be filled with this context
      sharedContext - Shared store of intermediate results.
      Returns:
      A context for use with fill operations

    • fillChunk

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

    • fillPrevChunk

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