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/*
* Copyright 2004-2013 H2 Group. Multiple-Licensed under the H2 License,
* Version 1.0, and under the Eclipse Public License, Version 1.0
* (http://h2database.com/html/license.html).
* Initial Developer: H2 Group
*/
package org.glowroot.shaded.h2.bnf;
import java.util.HashMap;
/**
* Represents a BNF rule.
*/
public interface Rule {
/**
* Update cross references.
*
* @param ruleMap the reference map
*/
void setLinks(HashMap ruleMap);
/**
* Add the next possible token(s). If there was a match, the query in the
* sentence is updated (the matched token is removed).
*
* @param sentence the sentence context
* @return true if a full match
*/
boolean autoComplete(Sentence sentence);
/**
* Call the visit method in the given visitor.
*
* @param visitor the visitor
*/
void accept(BnfVisitor visitor);
}