CDef (Javadocs [I2P+ 2.13.0+] - API Version 0.9.70+)

Skip navigation links

All Classes

Summary:
Nested |
Field |
Constr |
Method

Detail:
Field |
Constr |
Method

java.lang.Object
- org.rrd4j.graph.Source
- - org.rrd4j.graph.CDef

```
class CDef
extends Source
```
Represents a computed data source (CDEF) in RRD graphs. A CDEF evaluates a Reverse Polish Notation (RPN) expression to compute values from other data sources. Enables mathematical operations and data transformations within the graphing system.

Field Summary
- Fields inherited from class org.rrd4j.graph.Source
  name

Constructor Summary
Constructors
Constructor and Description
CDef(String name, String rpnExpression)
Create a new CDef.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`(package private) void`	`requestData(DataProcessor dproc)` Requests data from this source and provides it to the data processor.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - CDef
```
CDef(String name,
     String rpnExpression)
```
    Create a new CDef.
    Parameters:
    name - the source name
    rpnExpression - the RPN expression
- Method Detail
  - requestData
```
void requestData(DataProcessor dproc)
```
    Description copied from class: Source
    Requests data from this source and provides it to the data processor.
    Specified by:
    requestData in class Source
    Parameters:
    dproc - the data processor to receive the data

Skip navigation links

All Classes

Summary:
Nested |
Field |
Constr |
Method

Detail:
Field |
Constr |
Method