Package | Description |
---|---|
org.rrd4j |
RRD4J is a high performance data logging and graphing system for time series data, implementing
RRDTool's functionality in Java.
|
org.rrd4j.core |
core RRD4J implementation.
|
org.rrd4j.data |
RRD4J data management.
|
org.rrd4j.graph |
RRD4J graph capabilities.
|
Modifier and Type | Method and Description |
---|---|
abstract Variable |
ConsolFun.getVariable() |
Modifier and Type | Method and Description |
---|---|
void |
DataHolder.datasource(String name,
String defName,
Variable var)
Creates a datasource that performs a variable calculation on an
another named datasource to yield a single combined timestamp/value.
|
Modifier and Type | Class and Description |
---|---|
static class |
Variable.AVERAGE
Calculate the average of the data points.
|
static class |
Variable.FIRST
Find the first valid data point and it's timestamp
|
static class |
Variable.LAST
Find the first last valid point and it's timestamp
|
static class |
Variable.LSLCORREL
Calculate the correlation coefficient of the least squares line.
|
static class |
Variable.LSLINT
Calculate the y-intercept of the least squares line.
|
static class |
Variable.LSLSLOPE
Calculate the slop of the least squares line.
|
static class |
Variable.MAX
The biggest of the data points and it's time stamp (the first one) is stored.
|
static class |
Variable.MIN
The smallest of the data points and it's time stamp (the first one) is stored.
|
static class |
Variable.PERCENTILE
Find the point at the n-th percentile.
|
static class |
Variable.PERCENTILENAN |
static class |
Variable.STDDEV
Calculate the standard deviation for the data point.
|
static class |
Variable.TOTAL
Calculate the sum of the data points.
|
Modifier and Type | Method and Description |
---|---|
void |
DataProcessor.addDatasource(String name,
String defName,
Variable var)
Deprecated.
Uses
DataProcessor.datasource(String, String, Variable) instead. |
void |
DataProcessor.datasource(String name,
String defName,
Variable var)
Creates a datasource that performs a variable calculation on an
another named datasource to yield a single combined timestamp/value.
|
Variable.Value |
DataProcessor.getVariable(String sourceName,
Variable var)
Returns single aggregated value for a single datasource.
|
Constructor and Description |
---|
VDef(String name,
String defName,
Variable aggr) |
Modifier and Type | Method and Description |
---|---|
void |
RrdGraphDef.datasource(String name,
String defName,
Variable var)
Creates a datasource that performs a variable calculation on an
another named datasource to yield a single combined timestamp/value.
|
Constructor and Description |
---|
VDef(String name,
String defName,
Variable var) |