StringDocValuesReaderState (Lucene 9.7.0 facet API)

java.lang.Object
- org.apache.lucene.facet.StringDocValuesReaderState

```
public class StringDocValuesReaderState
extends Object
```
Stores an OrdinalMap created for a specific IndexReader (reader) + field. Enables re-use of the ordinalMap once created since creation is costly.
Note: It's important that callers confirm the ordinal map is still valid for their cases. Specifically, callers should confirm that the reader used to create the map (reader) matches their use-case.

- Constructor Summary
  
  Constructors
  Constructor Description
  
  StringDocValuesReaderState(IndexReader reader, String field)
  Construct state specific to a reader + field.
- Method Summary
  
  All Methods Instance Methods Concrete Methods
  Modifier and Type Method Description
  
  String toString()
  - Methods inherited from class java.lang.Object
    clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

- Constructor Detail
  - StringDocValuesReaderState
```
public StringDocValuesReaderState(IndexReader reader,
                                  String field)
                           throws IOException
```
    Construct state specific to a reader + field. This builds an OrdinalMap that can be reused for mapping segment-specific ordinals to global ordinals for the given field. Keep in mind that the state is only valid for the specified IndexReader, so opening new readers (e.g., to pickup NRT updates) requires constructing a new state instance.
    
    Throws:
    
    IOException
- Method Detail
  - toString
```
public String toString()
```
    Overrides:
    
    toString in class Object