org.apache.nifi.record.path.functions

Class FilterFunction

java.lang.Object

org.apache.nifi.record.path.paths.RecordPathSegment

org.apache.nifi.record.path.functions.FilterFunction

All Implemented Interfaces:

RecordPath

public class FilterFunction
extends RecordPathSegment

A Filter Function is responsible for taking a RecordPathFilter and turning it into a function that is capable of being evaluated against a RecordPathEvaluationContext such that the return value is a Stream<FieldValue> whose values are booleans.

So while a RecordPathFilter would be evaluated against a RecordPathEvaluationContext and return a Stream of FieldValues representing all elements that match the filter, the FilterFunction would instead return a true/false for each element indicating whether or not it passes the filter.

Field Summary

Fields

Modifier and Type	Field and Description
private RecordPathFilter	filter

Constructor Summary

Constructors

Constructor and Description
FilterFunction(String functionName, RecordPathFilter filter, boolean absolute)

Method Summary

Modifier and Type	Method and Description
Stream<FieldValue>	evaluate(RecordPathEvaluationContext context)

Methods inherited from class org.apache.nifi.record.path.paths.RecordPathSegment

equals, evaluate, evaluate, getPath, hashCode, isAbsolute, toString

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface org.apache.nifi.record.path.RecordPath

compile

Field Detail

filter

private final RecordPathFilter filter

Constructor Detail

FilterFunction

public FilterFunction(String functionName,
                      RecordPathFilter filter,
                      boolean absolute)

Method Detail

evaluate

public Stream<FieldValue> evaluate(RecordPathEvaluationContext context)

Specified by:

evaluate in class RecordPathSegment