## Uses of Interface
org.rrd4j.data.NonRrdSource

- Packages that use NonRrdSource
  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.

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

    Classes in org.rrd4j.data that implement NonRrdSource
    Modifier and Type | Class and Description
    --- | ---
    `(package private) class` | `CDef` RRD CDEF (Computed Data Source Definition) implementation. Creates computed data sources using Reverse Polish Notation (RPN) expressions on existing data sources.
    `(package private) class` | `PDef` RRD PDEF (Plottable Data Source Definition) implementation. Creates data sources from plottable objects that can provide values based on timestamps.
    `(package private) class` | `VDef` RRD VDEF (Variable Definition) implementation. Creates computed data sources by applying aggregation functions to existing data sources.