Package org.apache.druid.segment.virtual

Class NestedFieldVirtualColumn.FieldDimensionSelector

java.lang.Object

org.apache.druid.segment.BaseSingleValueDimensionSelector

org.apache.druid.segment.virtual.NestedFieldVirtualColumn.FieldDimensionSelector

All Implemented Interfaces:

HotLoopCallee, BaseDoubleColumnValueSelector, BaseFloatColumnValueSelector, BaseLongColumnValueSelector, BaseNullableColumnValueSelector, BaseObjectColumnValueSelector<Object>, ColumnValueSelector<Object>, DimensionDictionarySelector, DimensionSelector

Enclosing class:

NestedFieldVirtualColumn

public static final class NestedFieldVirtualColumn.FieldDimensionSelector
extends BaseSingleValueDimensionSelector

Create a DimensionSelector for a nested field on top of a ColumnValueSelector

Nested Class Summary

Nested classes/interfaces inherited from interface org.apache.druid.segment.DimensionSelector

DimensionSelector.NullDimensionSelectorHolder

Field Summary

Fields inherited from interface org.apache.druid.segment.ColumnValueSelector

EMPTY_ARRAY

Fields inherited from interface org.apache.druid.segment.DimensionDictionarySelector

CARDINALITY_UNKNOWN

Constructor Summary

Constructors

Constructor	Description
FieldDimensionSelector(ColumnValueSelector<?> valueSelector)

Method Summary

Modifier and Type	Method	Description
protected String	getValue()
void	inspectRuntimeShape(RuntimeShapeInspector inspector)	Implementations of this method should call inspector.visit() with all fields of this class, which meet two conditions: 1.

Methods inherited from class org.apache.druid.segment.BaseSingleValueDimensionSelector

classOfObject, getObject, getRow, getValueCardinality, idLookup, lookupName, makeValueMatcher, makeValueMatcher, nameLookupPossibleInAdvance

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.DimensionDictionarySelector

lookupNameUtf8, supportsLookupNameUtf8

Methods inherited from interface org.apache.druid.segment.DimensionSelector

defaultGetObject, getDouble, getFloat, getLong, isNull

Constructor Details

FieldDimensionSelector

public FieldDimensionSelector(ColumnValueSelector<?> valueSelector)

Method Details

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.

getValue

@Nullable
protected String getValue()

Specified by:

getValue in class BaseSingleValueDimensionSelector