DictionaryEncodedStringValueIndex (druid-processing 28.0.1 API)

All Superinterfaces:

DictionaryEncodedValueIndex

All Known Implementing Classes:

IndexedStringDictionaryEncodedStringValueIndex
```
public interface DictionaryEncodedStringValueIndex
extends DictionaryEncodedValueIndex
```
This exposes a 'raw' view into bitmap value indexes of a string DictionaryEncodedColumn. This allows callers to directly retrieve bitmaps via dictionary ids, as well as access to lower level details of such a column like value lookup and value cardinality. Most filter implementations should likely be using higher level index instead, such as StringValueSetIndexes, LexicographicalRangeIndexes, NumericRangeIndexes, or DruidPredicateIndexes

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`BitmapFactory`	`getBitmapFactory()`
`int`	`getCardinality()`	Get the cardinality of the underlying value dictionary
`String`	`getValue(int index)`	Get the value in the underlying value dictionary of the specified dictionary id

Methods inherited from interface org.apache.druid.segment.index.semantic.DictionaryEncodedValueIndex
getBitmap

- Method Detail
  - getCardinality
```
int getCardinality()
```
    Get the cardinality of the underlying value dictionary
  - getValue
```
@Nullable
String getValue(int index)
```
    Get the value in the underlying value dictionary of the specified dictionary id
  - getBitmapFactory
```
BitmapFactory getBitmapFactory()
```