org.rrd4j.data

Class VDef

java.lang.Object

org.rrd4j.data.Source

org.rrd4j.data.VDef

All Implemented Interfaces:

NonRrdSource

class VDef
extends Source
implements NonRrdSource

RRD VDEF (Variable Definition) implementation.
Creates computed data sources by applying aggregation functions to existing data sources.

Field Summary

Fields inherited from class org.rrd4j.data.Source

timestamps, values

Constructor Summary

Constructors

Constructor and Description
VDef(String name, String defName, Variable aggr)

Method Summary

Modifier and Type	Method and Description
void	calculate(long tStart, long tEnd, DataProcessor dataProcessor) Calculates values for the specified time range.
(package private) String	getDefName()
Variable.Value	getValue()
(package private) double[]	getValues()

Methods inherited from class org.rrd4j.data.Source

getName, getTimestamps, setTimestamps, setValues

Methods inherited from class java.lang.Object

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

Constructor Detail

VDef

VDef(String name,
     String defName,
     Variable aggr)

Method Detail

calculate

public void calculate(long tStart,
                      long tEnd,
                      DataProcessor dataProcessor)

Calculates values for the specified time range.

Specified by:

calculate in interface NonRrdSource

Parameters:

tStart - start time for calculation

tEnd - end time for calculation

dataProcessor - DataProcessor object for accessing other data sources

getDefName

String getDefName()

getValue

public Variable.Value getValue()

getValues

double[] getValues()

Overrides:

getValues in class Source