ai.grakn.graql.internal.parser

Class GraqlErrorListener

java.lang.Object

org.antlr.v4.runtime.BaseErrorListener

ai.grakn.graql.internal.parser.GraqlErrorListener

All Implemented Interfaces:

org.antlr.v4.runtime.ANTLRErrorListener

public class GraqlErrorListener
extends org.antlr.v4.runtime.BaseErrorListener

ANTLR error listener that listens for syntax errors. When a syntax error occurs, it is recorded. Call hasErrors() to see if there were errors. View the errors with toString().

Author:

Felix Chapman

Method Summary

Modifier and Type	Method and Description
boolean	hasErrors()
static GraqlErrorListener	of(String query)
void	syntaxError(org.antlr.v4.runtime.Recognizer<?,?> recognizer, Object offendingSymbol, int line, int charPositionInLine, String msg, org.antlr.v4.runtime.RecognitionException e)
String	toString()
static GraqlErrorListener	withoutQueryString() Create a GraqlErrorListener without a reference to a query string.

Methods inherited from class org.antlr.v4.runtime.BaseErrorListener

reportAmbiguity, reportAttemptingFullContext, reportContextSensitivity

Methods inherited from class java.lang.Object

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

Method Detail

withoutQueryString

public static GraqlErrorListener withoutQueryString()

Create a GraqlErrorListener without a reference to a query string.

This will have limited error-reporting abilities, but is necessary when dealing with very large queries that should not be held in memory all at once.

of

public static GraqlErrorListener of(String query)

syntaxError

public void syntaxError(org.antlr.v4.runtime.Recognizer<?,?> recognizer,
                        Object offendingSymbol,
                        int line,
                        int charPositionInLine,
                        String msg,
                        org.antlr.v4.runtime.RecognitionException e)

Specified by:

syntaxError in interface org.antlr.v4.runtime.ANTLRErrorListener

Overrides:

syntaxError in class org.antlr.v4.runtime.BaseErrorListener

hasErrors

public boolean hasErrors()

toString

public String toString()

Overrides:

toString in class Object