org.rrd4j.data
Class Plottable

java.lang.Object
  org.rrd4j.data.Plottable

Direct Known Subclasses:

CubicSplineInterpolator, LinearInterpolator

public abstract class Plottable
extends Object

Abstract class to be used for custom datasources.

If you wish to use a custom datasource in a graph, you should create a class implementing this interface that represents that datasource, and then pass this class on to the RrdGraphDef.

Constructor Summary

Plottable()

Method Summary

double

getValue(long timestamp) Retrieves datapoint value based on a given timestamp.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

Plottable

public Plottable()

Method Detail

getValue

public double getValue(long timestamp)

Retrieves datapoint value based on a given timestamp. Use this method if you only have one series of data in this class.

Parameters:

timestamp - Timestamp in seconds for the datapoint.

Returns:

Double value of the datapoint.