org.apache.druid.segment.serde

Class CombineFirstTwoValuesColumnarMultiInts

java.lang.Object

org.apache.druid.segment.serde.CombineFirstTwoValuesColumnarMultiInts

All Implemented Interfaces:

Closeable, AutoCloseable, Iterable<IndexedInts>, HotLoopCallee, ColumnarMultiInts, Indexed<IndexedInts>

public class CombineFirstTwoValuesColumnarMultiInts
extends Object
implements ColumnarMultiInts

A ColumnarMultiInts that delegates to an underyling instance, but applies CombineFirstTwoValuesIndexedInts to each row's set of values. Provided to enable compatibility for segments written under NullHandling.sqlCompatible() mode but read under NullHandling.replaceWithDefault() mode.

See Also:

NullHandling.mustCombineNullAndEmptyInDictionary(Indexed)

Constructor Summary

Constructors

Constructor and Description
CombineFirstTwoValuesColumnarMultiInts(ColumnarMultiInts delegate)

Method Summary

Modifier and Type	Method and Description
void	close()
IndexedInts	get(int index) Returns the values at a given row index.
IndexedInts	getUnshared(int index) Returns the values at a given row index.
int	indexOf(IndexedInts value) Returns the index of "value" in this Indexed object, or a negative number if the value is not present.
void	inspectRuntimeShape(RuntimeShapeInspector inspector) Implementations of this method should call inspector.visit() with all fields of this class, which meet two conditions: 1.
boolean	isSorted() Indicates if this value set is sorted, the implication being that the contract of Indexed.indexOf(T) is strenthened to return a negative number equal to (-(insertion point) - 1) when the value is not present in the set.
Iterator<IndexedInts>	iterator()
int	size() Number of elements in the value set

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.data.Indexed

checkIndex, empty

Methods inherited from interface java.lang.Iterable

forEach, spliterator

Constructor Detail

CombineFirstTwoValuesColumnarMultiInts

public CombineFirstTwoValuesColumnarMultiInts(ColumnarMultiInts delegate)

Method Detail

get

public IndexedInts get(int index)

Description copied from interface: ColumnarMultiInts

Returns the values at a given row index. The IndexedInts object may potentially be reused, so callers should not keep references to it.

Specified by:

get in interface ColumnarMultiInts

Specified by:

get in interface Indexed<IndexedInts>

getUnshared

public IndexedInts getUnshared(int index)

Description copied from interface: ColumnarMultiInts

Returns the values at a given row index. The IndexedInts object will not be reused. This method may be less efficient than plain "get".

Specified by:

getUnshared in interface ColumnarMultiInts

size

public int size()

Description copied from interface: Indexed

Number of elements in the value set

Specified by:

size in interface Indexed<IndexedInts>

indexOf

public int indexOf(@Nullable
                   IndexedInts value)

Description copied from interface: Indexed

Returns the index of "value" in this Indexed object, or a negative number if the value is not present. The negative number is not guaranteed to be any particular number unless Indexed.isSorted() returns true, in which case it will be a negative number equal to (-(insertion point) - 1), in the manner of Arrays.binarySearch.

Specified by:

indexOf in interface Indexed<IndexedInts>

Parameters:

value - value to search for

Returns:

index of value, or a negative number (equal to (-(insertion point) - 1) if Indexed.isSorted())

isSorted

public boolean isSorted()

Description copied from interface: Indexed

Indicates if this value set is sorted, the implication being that the contract of Indexed.indexOf(T) is strenthened to return a negative number equal to (-(insertion point) - 1) when the value is not present in the set.

Specified by:

isSorted in interface Indexed<IndexedInts>

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

iterator

public Iterator<IndexedInts> iterator()

Specified by:

iterator in interface Iterable<IndexedInts>

close

public void close()
           throws IOException

Specified by:

close in interface Closeable

Specified by:

close in interface AutoCloseable

Throws:

IOException