| Name | Description | Type | Package | Framework |
| UninvertingReader | A FilterReader that exposes indexed values as if they also had This is accomplished by inverting the inverted index or uninversion. | Class | org.apache.lucene.uninverting | Apache Lucene |
| UninvertingReader .Type | Specifies the type of uninversion to apply for the field. | Class | org.apache.lucene.uninverting.UninvertingReader | Apache Lucene |