io.druid.query.filter

Class StringValueMatcherColumnSelectorStrategy

java.lang.Object

io.druid.query.filter.StringValueMatcherColumnSelectorStrategy

All Implemented Interfaces:

ColumnSelectorStrategy, ValueMatcherColumnSelectorStrategy<DimensionSelector>

public class StringValueMatcherColumnSelectorStrategy
extends Object
implements ValueMatcherColumnSelectorStrategy<DimensionSelector>

Constructor Summary

Constructors

Constructor and Description
StringValueMatcherColumnSelectorStrategy()

Method Summary

Modifier and Type	Method and Description
ValueGetter	makeValueGetter(DimensionSelector selector) Create a ValueGetter.
ValueMatcher	makeValueMatcher(DimensionSelector selector, DruidPredicateFactory predicateFactory) Create a predicate-based ValueMatcher.
ValueMatcher	makeValueMatcher(DimensionSelector selector, String value) Create a single value ValueMatcher.

Methods inherited from class java.lang.Object

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

Constructor Detail

StringValueMatcherColumnSelectorStrategy

public StringValueMatcherColumnSelectorStrategy()

Method Detail

makeValueMatcher

public ValueMatcher makeValueMatcher(DimensionSelector selector,
                                     String value)

Description copied from interface: ValueMatcherColumnSelectorStrategy

Create a single value ValueMatcher.

Specified by:

makeValueMatcher in interface ValueMatcherColumnSelectorStrategy<DimensionSelector>

Parameters:

selector - Column selector

value - Value to match against

Returns:

ValueMatcher that matches on 'value'

makeValueMatcher

public ValueMatcher makeValueMatcher(DimensionSelector selector,
                                     DruidPredicateFactory predicateFactory)

Description copied from interface: ValueMatcherColumnSelectorStrategy

Create a predicate-based ValueMatcher.

Specified by:

makeValueMatcher in interface ValueMatcherColumnSelectorStrategy<DimensionSelector>

Parameters:

selector - Column selector

predicateFactory - A DruidPredicateFactory that provides the filter predicates to be matched

Returns:

A ValueMatcher that applies the predicate for this DimensionQueryHelper's value type from the predicateFactory

makeValueGetter

public ValueGetter makeValueGetter(DimensionSelector selector)

Description copied from interface: ValueMatcherColumnSelectorStrategy

Create a ValueGetter.

Specified by:

makeValueGetter in interface ValueMatcherColumnSelectorStrategy<DimensionSelector>

Parameters:

selector - Column selector

Returns:

A ValueGetter that returns the value(s) of the selected column