org.apache.druid.segment.serde

Class CombineFirstTwoValuesIndexedInts

java.lang.Object

org.apache.druid.segment.serde.CombineFirstTwoValuesIndexedInts

All Implemented Interfaces:

HotLoopCallee, IndexedInts

Direct Known Subclasses:

CombineFirstTwoValuesColumnarInts

public class CombineFirstTwoValuesIndexedInts
extends Object
implements IndexedInts

A IndexedInts that delegates to an underyling instance, but combines the values 0 and 1 into 0, and shifts all other values down by one. For example: - [2, 0, 1] => [1, 0, 0] - [3, 2, 1] => [2, 1, 0] - [0, 1, 0] => [0, 0, 0] 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
CombineFirstTwoValuesIndexedInts(IndexedInts delegate)

Method Summary

Modifier and Type	Method and Description
int	get(int index)
void	get(int[] out, int[] indexes, int length)
void	get(int[] out, int start, int length)
void	inspectRuntimeShape(RuntimeShapeInspector inspector) Implementations of this method should call inspector.visit() with all fields of this class, which meet two conditions: 1.
int	size()

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.IndexedInts

debugToString, empty, forEach

Constructor Detail

CombineFirstTwoValuesIndexedInts

public CombineFirstTwoValuesIndexedInts(IndexedInts delegate)

Method Detail

size

public int size()

Specified by:

size in interface IndexedInts

get

public int get(int index)

Specified by:

get in interface IndexedInts

get

public void get(int[] out,
                int start,
                int length)

Specified by:

get in interface IndexedInts

get

public void get(int[] out,
                int[] indexes,
                int length)

Specified by:

get in interface 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