Package org.apache.druid.segment.filter

Class StringConstantValueMatcherFactory

java.lang.Object

org.apache.druid.segment.filter.StringConstantValueMatcherFactory

All Implemented Interfaces:

ColumnProcessorFactory<ValueMatcher>

public class StringConstantValueMatcherFactory
extends Object
implements ColumnProcessorFactory<ValueMatcher>

Creates ValueMatcher that match constants.

Method Summary

Modifier and Type	Method	Description
ColumnType	defaultType()	This default type will be used when the underlying column has an unknown type.
ValueMatcher	makeArrayProcessor(BaseObjectColumnValueSelector<?> selector, ColumnCapabilities columnCapabilities)
ValueMatcher	makeComplexProcessor(BaseObjectColumnValueSelector<?> selector)	Create a processor for a complex column.
ValueMatcher	makeDimensionProcessor(DimensionSelector selector, boolean multiValue)	Create a processor for a string column.
ValueMatcher	makeDoubleProcessor(BaseDoubleColumnValueSelector selector)	Create a processor for a double column.
ValueMatcher	makeFloatProcessor(BaseFloatColumnValueSelector selector)	Create a processor for a float column.
ValueMatcher	makeLongProcessor(BaseLongColumnValueSelector selector)	Create a processor for a long column.

Methods inherited from class java.lang.Object

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

Method Details

defaultType

public ColumnType defaultType()

Description copied from interface: ColumnProcessorFactory

This default type will be used when the underlying column has an unknown type. This allows a column processor factory to specify what type it prefers to deal with (the most 'natural' type for whatever it is doing) when all else is equal.

Specified by:

defaultType in interface ColumnProcessorFactory<ValueMatcher>

makeDimensionProcessor

public ValueMatcher makeDimensionProcessor(DimensionSelector selector,
 boolean multiValue)

Description copied from interface: ColumnProcessorFactory

Create a processor for a string column.

Specified by:

makeDimensionProcessor in interface ColumnProcessorFactory<ValueMatcher>

Parameters:

selector - dimension selector

multiValue - whether the selector *might* have multiple values

makeFloatProcessor

public ValueMatcher makeFloatProcessor(BaseFloatColumnValueSelector selector)

Description copied from interface: ColumnProcessorFactory

Create a processor for a float column.

Specified by:

makeFloatProcessor in interface ColumnProcessorFactory<ValueMatcher>

Parameters:

selector - float selector

makeDoubleProcessor

public ValueMatcher makeDoubleProcessor(BaseDoubleColumnValueSelector selector)

Description copied from interface: ColumnProcessorFactory

Create a processor for a double column.

Specified by:

makeDoubleProcessor in interface ColumnProcessorFactory<ValueMatcher>

Parameters:

selector - double selector

makeLongProcessor

public ValueMatcher makeLongProcessor(BaseLongColumnValueSelector selector)

Description copied from interface: ColumnProcessorFactory

Create a processor for a long column.

Specified by:

makeLongProcessor in interface ColumnProcessorFactory<ValueMatcher>

Parameters:

selector - long selector

makeArrayProcessor

public ValueMatcher makeArrayProcessor(BaseObjectColumnValueSelector<?> selector,
 @Nullable
 ColumnCapabilities columnCapabilities)

Specified by:

makeArrayProcessor in interface ColumnProcessorFactory<ValueMatcher>

Parameters:

selector - array selector

columnCapabilities - information about the underlying column to match. Null here just means the capabilities are unknown, and not necessarily indicative that the column doesn't exist

makeComplexProcessor

public ValueMatcher makeComplexProcessor(BaseObjectColumnValueSelector<?> selector)

Description copied from interface: ColumnProcessorFactory

Create a processor for a complex column.

Specified by:

makeComplexProcessor in interface ColumnProcessorFactory<ValueMatcher>

Parameters:

selector - object selector