http://www.h2database.com: H2 Database Engine
  • Thomas Mueller 
/*
 * Copyright 2004-2019 H2 Group. Multiple-Licensed under the MPL 2.0,
 * and the EPL 1.0 (http://h2database.com/html/license.html).
 * Initial Developer: H2 Group
 */
package org.h2.bnf;

import java.util.HashMap;


Represents a BNF rule.

/**
 * Represents a BNF rule.
 */
public interface Rule {

    
Update cross references.

Params:
  • ruleMap – the reference map
/**
     * Update cross references.
     *
     * @param ruleMap the reference map
     */
    void setLinks(HashMap<String, RuleHead> ruleMap);

    
Add the next possible token(s). If there was a match, the query in the
sentence is updated (the matched token is removed).

Params:
  • sentence – the sentence context
Returns:true if a full match
/**
     * 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.

Params:
  • visitor – the visitor
/**
     * Call the visit method in the given visitor.
     *
     * @param visitor the visitor
     */
    void accept(BnfVisitor visitor);

}