| Name | Description | Type | Package | Framework |
| CharacterHistogram | A MapReduce that computes a histogram of byte frequency for each file and stores the histogram alongside the file data. | Class | org.apache.accumulo.examples.simple.filedata | Apache Accumulo |
| CharacterHistogram .HistMapper | Class | org.apache.accumulo.examples.simple.filedata.CharacterHistogram | Apache Accumulo | |
| ChunkCombiner | This iterator dedupes chunks and sets their visibilities to the combined visibility of the refs columns. | Class | org.apache.accumulo.examples.simple.filedata | Apache Accumulo |
| ChunkInputFormat | An InputFormat that turns the file data ingested with FileDataIngest into an InputStream using ChunkInputStream. | Class | org.apache.accumulo.examples.simple.filedata | Apache Accumulo |
| ChunkInputStream | An input stream that reads file data stored in one or more Accumulo values. | Class | org.apache.accumulo.examples.simple.filedata | Apache Accumulo |
| FileDataIngest | Takes a list of files and archives them into Accumulo keyed on hashes of the files. | Class | org.apache.accumulo.examples.simple.filedata | Apache Accumulo |
| FileDataIngest .Opts | Class | org.apache.accumulo.examples.simple.filedata.FileDataIngest | Apache Accumulo | |
| FileDataQuery | Retrieves file data based on the hash of the file. | Class | org.apache.accumulo.examples.simple.filedata | Apache Accumulo |
| KeyUtil | A utility for creating and parsing null-byte separated strings into/from Text objects. | Class | org.apache.accumulo.examples.simple.filedata | Apache Accumulo |
| VisibilityCombiner | A utility for merging visibilities into the form (VIS1)(VIS2) | Class | org.apache.accumulo.examples.simple.filedata | Apache Accumulo |