## Uses of Interface
org.rrd4j.core.DataHolder

- Packages that use DataHolder
  Package | Description
  --- | ---
  org.rrd4j.data | RRD4J data management classes and interfaces. Provides data sources, processors, aggregators, and utilities for Round Robin Database (RRD) operations and calculations.
  org.rrd4j.graph | RRD4J graph capabilities.

- - ### Uses of DataHolder in org.rrd4j.data

    Classes in org.rrd4j.data that implement DataHolder
    Modifier and Type | Class and Description
    --- | ---
    `class` | `DataProcessor` Class which should be used for all calculations based on the data fetched from RRD files.

  - ### Uses of DataHolder in org.rrd4j.graph

    Classes in org.rrd4j.graph that implement DataHolder
    Modifier and Type | Class and Description
    --- | ---
    `class` | `RrdGraphDef` Class which should be used to define new Rrd4j graph.