GroovyFunctionEvaluator (Pinot local segment implementations 0.12.1 API)

java.lang.Object
- org.apache.pinot.segment.local.function.GroovyFunctionEvaluator

All Implemented Interfaces:

FunctionEvaluator
```
public class GroovyFunctionEvaluator
extends Object
implements FunctionEvaluator
```
An FunctionEvaluator for evaluating transform function expressions of a Schema field spec written in Groovy. GroovyShell is used to execute expressions. The transform expression must follow the convention Groovy({expression}, arguments1, argument2...) For example: "dimensionFieldSpecs": [ { "name": "fullName", "dataType": "STRING", "transformFunction": "Groovy({firstName+' '+lastName}, firstName, lastName)" } ]

Constructor Summary

Constructors
Constructor Description

GroovyFunctionEvaluator(String closure)

Method Summary

Modifier and Type	Method	Description
`Object`	`evaluate(Object[] values)`	Evaluates the function on the given values (same order as the arguments) and returns the result.
`Object`	`evaluate(GenericRow genericRow)`	Evaluate the function on the generic row and return the result
`List<String>`	`getArguments()`	Get the arguments of the function
`static String`	`getGroovyExpressionPrefix()`

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

- Constructor Detail
  - GroovyFunctionEvaluator
```
public GroovyFunctionEvaluator(String closure)
```
- Method Detail
  - getGroovyExpressionPrefix
```
public static String getGroovyExpressionPrefix()
```
  - getArguments
```
public List<String> getArguments()
```
    Description copied from interface: FunctionEvaluator
    
    Get the arguments of the function
    
    Specified by:
    
    getArguments in interface FunctionEvaluator
  - evaluate
```
public Object evaluate(GenericRow genericRow)
```
    Description copied from interface: FunctionEvaluator
    
    Evaluate the function on the generic row and return the result
    
    Specified by:
    
    evaluate in interface FunctionEvaluator
  - evaluate
```
public Object evaluate(Object[] values)
```
    Description copied from interface: FunctionEvaluator
    
    Evaluates the function on the given values (same order as the arguments) and returns the result.
    
    Specified by:
    
    evaluate in interface FunctionEvaluator