Package org.elasticsearch.xpack.esql.expression.function.scalar.string

Class AutomataMatch

java.lang.Object

org.elasticsearch.xpack.esql.expression.function.scalar.string.AutomataMatch

public class AutomataMatch
extends Object

Matches BytesRefs against automata.

Constructor Summary

Constructors

Constructor	Description
AutomataMatch()

Method Summary

Modifier and Type	Method	Description
static String	toDot(org.apache.lucene.util.automaton.Automaton automaton)	Convert an Automaton to dot.
static ExpressionEvaluator.Factory	toEvaluator(Source source, ExpressionEvaluator.Factory field, org.apache.lucene.util.automaton.Automaton utf32Automaton)	Build an ExpressionEvaluator.Factory that will match BytesRefs against automata and return a BooleanBlock.

Methods inherited from class java.lang.Object

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

Constructor Details

AutomataMatch

public AutomataMatch()

Method Details

toEvaluator

public static ExpressionEvaluator.Factory toEvaluator(Source source,
 ExpressionEvaluator.Factory field,
 org.apache.lucene.util.automaton.Automaton utf32Automaton)

Build an ExpressionEvaluator.Factory that will match BytesRefs against automata and return a BooleanBlock.

toDot

public static String toDot(org.apache.lucene.util.automaton.Automaton automaton)

Convert an Automaton to dot.

This was borrowed from Automaton.toDot() but has been modified to snip if the length grows too much and to format the bytes differently.