org.apache.nifi.attribute.expression.language

Class ParameterExpression

java.lang.Object

org.apache.nifi.attribute.expression.language.ParameterExpression

All Implemented Interfaces:

Expression

public class ParameterExpression
extends Object
implements Expression

Field Summary

Fields

Modifier and Type	Field and Description
private String	parameterName

Constructor Summary

Constructors

Constructor and Description
ParameterExpression(String parameterName)

Method Summary

Modifier and Type	Method and Description
String	evaluate(EvaluationContext evaluationContext, AttributeValueDecorator decorator) Evaluates this Expression against the given variables, attribute decorator, and state variables

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

parameterName

private final String parameterName

Constructor Detail

ParameterExpression

public ParameterExpression(String parameterName)

Method Detail

evaluate

public String evaluate(EvaluationContext evaluationContext,
                       AttributeValueDecorator decorator)

Description copied from interface: Expression

Evaluates this Expression against the given variables, attribute decorator, and state variables

Specified by:

evaluate in interface Expression

Parameters:

evaluationContext - the context used to evaluate the Expression

decorator - decorator to decorate variable values

Returns:

the evaluated value