IndexObserver (Lucene 8.1.0 API)

All Superinterfaces:

Observer
```
public interface IndexObserver
extends Observer
```
Index open/close observer

- Method Summary
  
  All Methods Instance Methods Abstract Methods
  Modifier and Type Method Description
  
  void closeIndex()
  
  void openIndex(LukeState state)

Method Detail

openIndex
```
void openIndex(LukeState state)
```

closeIndex
```
void closeIndex()
```