RRD4J data management.
Interface Summary Interface Description NonRrdSource
Class Summary Class Description Aggregates Deprecated.This class is deprecated. Aggregator CDef CubicSplineInterpolatorClass used to interpolate datasource values from the collection of (timestamp, values) points using natural cubic spline interpolation. DataProcessorClass which should be used for all calculations based on the data fetched from RRD files. Def LinearInterpolatorClass used to interpolate datasource values from the collection of (timestamp, values) points. Normalizer PDef PlottableAbstract class to be used for custom datasources. RpnCalculator Source VariableAn abstract class to help extract single value from a set of value (VDEF in rrdtool) It can be used to add new fancy statistical calculation with rrd values Variable.AVERAGECalculate the average of the data points. Variable.ComparPercentElemenThe sort used by rrdtool for percent, where NaN < -INF < finite values < INF Variable.FIRSTFind the first valid data point and it's timestamp Variable.LASTFind the first last valid point and it's timestamp Variable.LSLCORRELCalculate the correlation coefficient of the least squares line. Variable.LSLINTCalculate the y-intercept of the least squares line. Variable.LSLSLOPECalculate the slop of the least squares line. Variable.MAXThe biggest of the data points and it's time stamp (the first one) is stored. Variable.MINThe smallest of the data points and it's time stamp (the first one) is stored. Variable.PercentElemStore all the informations about a datasource point, for predictive and consistent sorting Variable.PERCENTILEFind the point at the n-th percentile. Variable.PERCENTILENAN Variable.STDDEVCalculate the standard deviation for the data point. Variable.TOTALCalculate the sum of the data points. Variable.ValueThis class store both the value and the time stamp It will be used by graph rendering legend VDef
Enum Summary Enum Description LinearInterpolator.MethodA enumeration of interpolation methods