Package org.apache.druid.segment.index

Class IndexedUtf8LexicographicalRangeIndexes<TDictionary extends Indexed<ByteBuffer>>

java.lang.Object

org.apache.druid.segment.index.IndexedUtf8LexicographicalRangeIndexes<TDictionary>

All Implemented Interfaces:

LexicographicalRangeIndexes

public final class IndexedUtf8LexicographicalRangeIndexes<TDictionary extends Indexed<ByteBuffer>>
extends Object
implements LexicographicalRangeIndexes

Constructor Summary

Constructors

Constructor	Description
IndexedUtf8LexicographicalRangeIndexes(BitmapFactory bitmapFactory, TDictionary dictionary, Indexed<ImmutableBitmap> bitmaps, boolean hasNull)

Method Summary

Modifier and Type	Method	Description
BitmapColumnIndex	forRange(String startValue, boolean startStrict, String endValue, boolean endStrict)	Get a BitmapColumnIndex corresponding to the values supplied in the specified range.
BitmapColumnIndex	forRange(String startValue, boolean startStrict, String endValue, boolean endStrict, DruidObjectPredicate<String> matcher)	Get a BitmapColumnIndex corresponding to the values supplied in the specified range whose dictionary ids also match some predicate, such as to match a prefix.

Methods inherited from class java.lang.Object

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

Constructor Detail

IndexedUtf8LexicographicalRangeIndexes

public IndexedUtf8LexicographicalRangeIndexes(BitmapFactory bitmapFactory,
                                              TDictionary dictionary,
                                              Indexed<ImmutableBitmap> bitmaps,
                                              boolean hasNull)

Method Detail

forRange

@Nullable
public BitmapColumnIndex forRange(@Nullable
                                  String startValue,
                                  boolean startStrict,
                                  @Nullable
                                  String endValue,
                                  boolean endStrict)

Description copied from interface: LexicographicalRangeIndexes

Get a BitmapColumnIndex corresponding to the values supplied in the specified range. If supplied starting value is null, the range will begin at the first non-null value in the underlying value dictionary. If the end value is null, the range will extend to the last value in the underlying value dictionary.

If this method returns null it indicates that there is no index available that matches the requested range and a ValueMatcher must be used instead.

Specified by:

forRange in interface LexicographicalRangeIndexes

forRange

@Nullable
public BitmapColumnIndex forRange(@Nullable
                                  String startValue,
                                  boolean startStrict,
                                  @Nullable
                                  String endValue,
                                  boolean endStrict,
                                  DruidObjectPredicate<String> matcher)

Description copied from interface: LexicographicalRangeIndexes

Get a BitmapColumnIndex corresponding to the values supplied in the specified range whose dictionary ids also match some predicate, such as to match a prefix. If supplied starting value is null, the range will begin at the first non-null value in the underlying value dictionary that matches the predicate. If the end value is null, the range will extend to the last value in the underlying value dictionary that matches the predicate.

If the provided matcher is always true, it's better to use the other LexicographicalRangeIndexes.forRange(String, boolean, String, boolean) method.

If this method returns null it indicates that there is no index available that matches the requested range and a ValueMatcher must be used instead.

Specified by:

forRange in interface LexicographicalRangeIndexes