Package org.apache.nifi.attribute.expression.language

Class StandardAttributeExpression

java.lang.Object

org.apache.nifi.attribute.expression.language.StandardAttributeExpression

All Implemented Interfaces:

AttributeExpression

public class StandardAttributeExpression
extends Object
implements AttributeExpression

Nested Class Summary

Nested classes/interfaces inherited from interface org.apache.nifi.expression.AttributeExpression

AttributeExpression.ResultType

Field Summary

Fields

Modifier and Type	Field	Description
private final ParameterLookup	parameterLookup
private final Query	query

Constructor Summary

Constructors

Constructor	Description
StandardAttributeExpression(Query query, ParameterLookup parameterLookup)

Method Summary

Modifier and Type	Method	Description
String	evaluate()
String	evaluate(AttributeValueDecorator decorator)
String	evaluate(FlowFile flowFile)
String	evaluate(FlowFile flowFile, AttributeValueDecorator decorator)
AttributeExpression.ResultType	getResultType()

Methods inherited from class java.lang.Object

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

Field Details

query

private final Query query

parameterLookup

private final ParameterLookup parameterLookup

Constructor Details

StandardAttributeExpression

public StandardAttributeExpression(Query query,
 ParameterLookup parameterLookup)

Method Details

getResultType

public AttributeExpression.ResultType getResultType()

Specified by:

getResultType in interface AttributeExpression

evaluate

public String evaluate()
                throws ProcessException

Specified by:

evaluate in interface AttributeExpression

Throws:

ProcessException

evaluate

public String evaluate(AttributeValueDecorator decorator)
                throws ProcessException

Specified by:

evaluate in interface AttributeExpression

Throws:

ProcessException

evaluate

public String evaluate(FlowFile flowFile)
                throws ProcessException

Specified by:

evaluate in interface AttributeExpression

Throws:

ProcessException

evaluate

public String evaluate(FlowFile flowFile,
 AttributeValueDecorator decorator)
                throws ProcessException

Specified by:

evaluate in interface AttributeExpression

Throws:

ProcessException