See: Description
| Interface | Description | 
|---|---|
| UpdatableIndex | Interface describing an index that can be updated | 
| WritableIndex | Interface that defines the methods that an index should have if it has the ability
 to write itself to disk once it has been loaded/altered. | 
Provides index structures that support updating and real-time retrieval. These are MemoryIndex, IncrementalIndex and MultiIndex.
Terrier Information Retrieval Platform4.1. Copyright © 2004-2015, University of Glasgow