Package org.apache.druid.query.aggregation.cardinality.vector

Class CardinalityVectorProcessorFactory

java.lang.Object

org.apache.druid.query.aggregation.cardinality.vector.CardinalityVectorProcessorFactory

All Implemented Interfaces:

VectorColumnProcessorFactory<CardinalityVectorProcessor>

public class CardinalityVectorProcessorFactory
extends Object
implements VectorColumnProcessorFactory<CardinalityVectorProcessor>

Field Summary

Fields

Modifier and Type	Field	Description
static final CardinalityVectorProcessorFactory	INSTANCE

Constructor Summary

Constructors

Constructor	Description
CardinalityVectorProcessorFactory()

Method Summary

Modifier and Type	Method	Description
CardinalityVectorProcessor	makeArrayProcessor(ColumnCapabilities capabilities, VectorObjectSelector selector)	Called when TypeSignature.getType() is ARRAY.
CardinalityVectorProcessor	makeDoubleProcessor(ColumnCapabilities capabilities, VectorValueSelector selector)	Called when TypeSignature.getType() is DOUBLE.
CardinalityVectorProcessor	makeFloatProcessor(ColumnCapabilities capabilities, VectorValueSelector selector)	Called when TypeSignature.getType() is FLOAT.
CardinalityVectorProcessor	makeLongProcessor(ColumnCapabilities capabilities, VectorValueSelector selector)	Called when TypeSignature.getType() is LONG.
CardinalityVectorProcessor	makeMultiValueDimensionProcessor(ColumnCapabilities capabilities, MultiValueDimensionVectorSelector selector)	Called only if TypeSignature.getType() is STRING and the underlying column may have multiple values per row.
CardinalityVectorProcessor	makeObjectProcessor(ColumnCapabilities capabilities, VectorObjectSelector selector)	Called when TypeSignature.getType() is COMPLEX.
CardinalityVectorProcessor	makeSingleValueDimensionProcessor(ColumnCapabilities capabilities, SingleValueDimensionVectorSelector selector)	Called only if TypeSignature.getType() is STRING and the underlying column always has a single value per row.

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.VectorColumnProcessorFactory

useDictionaryEncodedSelector

Field Details

INSTANCE

public static final CardinalityVectorProcessorFactory INSTANCE

Constructor Details

CardinalityVectorProcessorFactory

public CardinalityVectorProcessorFactory()

Method Details

makeSingleValueDimensionProcessor

public CardinalityVectorProcessor makeSingleValueDimensionProcessor(ColumnCapabilities capabilities,
 SingleValueDimensionVectorSelector selector)

Description copied from interface: VectorColumnProcessorFactory

Called only if TypeSignature.getType() is STRING and the underlying column always has a single value per row. Note that for STRING-typed columns where the dictionary does not exist or is not expected to be useful, VectorColumnProcessorFactory.makeObjectProcessor(org.apache.druid.segment.column.ColumnCapabilities, org.apache.druid.segment.vector.VectorObjectSelector) may be called instead. To handle all string inputs properly, processors must implement all three methods (single-value, multi-value, object).

Specified by:

makeSingleValueDimensionProcessor in interface VectorColumnProcessorFactory<CardinalityVectorProcessor>

makeMultiValueDimensionProcessor

public CardinalityVectorProcessor makeMultiValueDimensionProcessor(ColumnCapabilities capabilities,
 MultiValueDimensionVectorSelector selector)

Description copied from interface: VectorColumnProcessorFactory

Called only if TypeSignature.getType() is STRING and the underlying column may have multiple values per row. Note that for STRING-typed columns where the dictionary does not exist or is not expected to be useful, VectorColumnProcessorFactory.makeObjectProcessor(org.apache.druid.segment.column.ColumnCapabilities, org.apache.druid.segment.vector.VectorObjectSelector) may be called instead. To handle all string inputs properly, processors must implement all three methods (single-value, multi-value, object).

Specified by:

makeMultiValueDimensionProcessor in interface VectorColumnProcessorFactory<CardinalityVectorProcessor>

makeFloatProcessor

public CardinalityVectorProcessor makeFloatProcessor(ColumnCapabilities capabilities,
 VectorValueSelector selector)

Description copied from interface: VectorColumnProcessorFactory

Called when TypeSignature.getType() is FLOAT.

Specified by:

makeFloatProcessor in interface VectorColumnProcessorFactory<CardinalityVectorProcessor>

makeDoubleProcessor

public CardinalityVectorProcessor makeDoubleProcessor(ColumnCapabilities capabilities,
 VectorValueSelector selector)

Description copied from interface: VectorColumnProcessorFactory

Called when TypeSignature.getType() is DOUBLE.

Specified by:

makeDoubleProcessor in interface VectorColumnProcessorFactory<CardinalityVectorProcessor>

makeLongProcessor

public CardinalityVectorProcessor makeLongProcessor(ColumnCapabilities capabilities,
 VectorValueSelector selector)

Description copied from interface: VectorColumnProcessorFactory

Called when TypeSignature.getType() is LONG.

Specified by:

makeLongProcessor in interface VectorColumnProcessorFactory<CardinalityVectorProcessor>

makeArrayProcessor

public CardinalityVectorProcessor makeArrayProcessor(ColumnCapabilities capabilities,
 VectorObjectSelector selector)

Description copied from interface: VectorColumnProcessorFactory

Called when TypeSignature.getType() is ARRAY.

Specified by:

makeArrayProcessor in interface VectorColumnProcessorFactory<CardinalityVectorProcessor>

makeObjectProcessor

public CardinalityVectorProcessor makeObjectProcessor(ColumnCapabilities capabilities,
 VectorObjectSelector selector)

Description copied from interface: VectorColumnProcessorFactory

Called when TypeSignature.getType() is COMPLEX. May also be called for STRING typed columns in cases where the dictionary does not exist or is not expected to be useful.

Specified by:

makeObjectProcessor in interface VectorColumnProcessorFactory<CardinalityVectorProcessor>

See Also:

• for details on what can appear here when type is STRING