JexlEvaluateFunctions (OpenNMS 28.0.0 API)

java.lang.Object
- org.opennms.netmgt.measurements.impl.JexlEvaluateFunctions

```
public class JexlEvaluateFunctions
extends java.lang.Object
```
Functions to use JexlEngine to evaluate a given formula string against the current context

Author:

cgallen

Constructor Summary

Constructors
Constructor Description

JexlEvaluateFunctions(org.apache.commons.jexl2.JexlContext context, org.apache.commons.jexl2.JexlEngine jexl)

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`java.lang.Double`	`evaluate(java.lang.String formula)`	Uses the JexlEngine to evaluate a string constant as a Jexl expression

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

- Constructor Detail
  - JexlEvaluateFunctions
```
public JexlEvaluateFunctions(org.apache.commons.jexl2.JexlContext context,
                             org.apache.commons.jexl2.JexlEngine jexl)
```
- Method Detail
  - evaluate
```
public java.lang.Double evaluate(java.lang.String formula)
```
    Uses the JexlEngine to evaluate a string constant as a Jexl expression
    
    Parameters:
    
    formula - string expression to evaluate
    
    Returns:
    
    double value or NaN if formula cannot be evaluated