Package org.apache.druid.segment.column

Class DoublesColumn

java.lang.Object

org.apache.druid.segment.column.DoublesColumn

All Implemented Interfaces:

Closeable, AutoCloseable, HotLoopCallee, BaseColumn, NumericColumn

public class DoublesColumn
extends Object
implements NumericColumn

Method Summary

Modifier and Type	Method	Description
void	close()
static DoublesColumn	create(ColumnarDoubles column, ImmutableBitmap nullValueBitmap)	Factory method to create DoublesColumn.
long	getLongSingleValueRow(int rowNum)
void	inspectRuntimeShape(RuntimeShapeInspector inspector)	Implementations of this method should call inspector.visit() with all fields of this class, which meet two conditions: 1.
int	length()	Returns the row count of this column.
ColumnValueSelector<?>	makeColumnValueSelector(ReadableOffset offset)
VectorValueSelector	makeVectorValueSelector(ReadableVectorOffset offset)

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.druid.segment.column.BaseColumn

makeVectorObjectSelector

Method Detail

create

public static DoublesColumn create(ColumnarDoubles column,
                                   ImmutableBitmap nullValueBitmap)

Factory method to create DoublesColumn.

length

public int length()

Description copied from interface: NumericColumn

Returns the row count of this column. Note that this method currently counts only non-null values. Using this method to get the length of a column that contains nulls will not work as expected. This method should be used only for non-nullable numeric columns such as the "__time" column.

Specified by:

length in interface NumericColumn

makeColumnValueSelector

public ColumnValueSelector<?> makeColumnValueSelector(ReadableOffset offset)

Specified by:

makeColumnValueSelector in interface BaseColumn

makeVectorValueSelector

public VectorValueSelector makeVectorValueSelector(ReadableVectorOffset offset)

Specified by:

makeVectorValueSelector in interface BaseColumn

getLongSingleValueRow

public long getLongSingleValueRow(int rowNum)

Specified by:

getLongSingleValueRow in interface NumericColumn

close

public void close()

Specified by:

close in interface AutoCloseable

Specified by:

close in interface Closeable

Specified by:

close in interface NumericColumn

inspectRuntimeShape

public void inspectRuntimeShape(RuntimeShapeInspector inspector)

Description copied from interface: HotLoopCallee

Implementations of this method should call inspector.visit() with all fields of this class, which meet two conditions: 1. They are used in methods of this class, annotated with CalledFromHotLoop 2. They are either: a. Nullable objects b. Instances of HotLoopCallee c. Objects, which don't always have a specific class in runtime. For example, a field of type Set could be HashSet or TreeSet in runtime, depending on how this instance (the instance on which inspectRuntimeShape() is called) is configured. d. ByteBuffer or similar objects, where byte order matters e. boolean flags, affecting branch taking f. Arrays of objects, meeting any of conditions a-e.

Specified by:

inspectRuntimeShape in interface HotLoopCallee