IndexReader.ClosedListener (Lucene 9.10.0 core API)

Enclosing class:

IndexReader

Functional Interface:

This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.
```
@FunctionalInterface
public static interface IndexReader.ClosedListener
```
A listener that is called when a resource gets closed.

WARNING: This API is experimental and might change in incompatible ways in the next release.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`void`	`onClose(IndexReader.CacheKey key)`	Invoked when the resource (segment core, or index reader) that is being cached on is closed.

- Method Detail
  - onClose
```
void onClose(IndexReader.CacheKey key)
      throws IOException
```
    Invoked when the resource (segment core, or index reader) that is being cached on is closed.
    
    Throws:
    
    IOException