io.druid.segment.filter

Class Filters

java.lang.Object

io.druid.segment.filter.Filters

public class Filters
extends Object

Field Summary

Fields

Modifier and Type	Field and Description
static List<ValueType>	FILTERABLE_TYPES

Constructor Summary

Constructors

Constructor and Description
Filters()

Method Summary

Modifier and Type	Method and Description
static Filter	convertToCNF(Filter current)
static Filter	convertToCNFFromQueryContext(Query query, Filter filter)
static ValueMatcher	getLongPredicateMatcher(LongColumnSelector longSelector, DruidLongPredicate predicate)
static ValueMatcher	getLongValueMatcher(LongColumnSelector longSelector, Comparable value)
static com.metamx.collections.bitmap.ImmutableBitmap	matchPredicate(String dimension, BitmapIndexSelector selector, com.google.common.base.Predicate<String> predicate) Return the union of bitmaps for all values matching a particular predicate.
static Filter	toFilter(DimFilter dimFilter) Convert a DimFilter to a Filter.
static List<Filter>	toFilters(List<DimFilter> dimFilters) Convert a list of DimFilters to a list of Filters.

Methods inherited from class java.lang.Object

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

Field Detail

FILTERABLE_TYPES

public static final List<ValueType> FILTERABLE_TYPES

Constructor Detail

Filters

public Filters()

Method Detail

toFilters

public static List<Filter> toFilters(List<DimFilter> dimFilters)

Convert a list of DimFilters to a list of Filters.

Parameters:

dimFilters - list of DimFilters, should all be non-null

Returns:

list of Filters

toFilter

public static Filter toFilter(DimFilter dimFilter)

Convert a DimFilter to a Filter.

Parameters:

dimFilter - dimFilter

Returns:

converted filter, or null if input was null

matchPredicate

public static com.metamx.collections.bitmap.ImmutableBitmap matchPredicate(String dimension,
                                                                           BitmapIndexSelector selector,
                                                                           com.google.common.base.Predicate<String> predicate)

Return the union of bitmaps for all values matching a particular predicate.

Parameters:

dimension - dimension to look at

selector - bitmap selector

predicate - predicate to use

Returns:

bitmap of matching rows

getLongValueMatcher

public static ValueMatcher getLongValueMatcher(LongColumnSelector longSelector,
                                               Comparable value)

getLongPredicateMatcher

public static ValueMatcher getLongPredicateMatcher(LongColumnSelector longSelector,
                                                   DruidLongPredicate predicate)

convertToCNFFromQueryContext

public static Filter convertToCNFFromQueryContext(Query query,
                                                  Filter filter)

convertToCNF

public static Filter convertToCNF(Filter current)