Interface Summary
DirectoryWrapper Allows to get the native directory implementations
MultiDeleteDirectory Acts as a marker interface for directories that can delete multiple files at one go.

Class Summary
ConfigurableBufferedIndexInput A simple base class that performs index input memory based buffering.
ConfigurableBufferedIndexOutput A simple base class that performs index output memory based buffering.
DirectoryTemplate A simple directory template for performing operations that result in actions being performed on the directory (like index reader/searcher/writer operation).

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