| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| |
| grammar Cql; |
| |
| options { |
| language = Java; |
| } |
| |
| import Parser,Lexer; |
| |
| @header { |
| package org.apache.cassandra.cql3; |
| |
| import java.util.Collections; |
| import java.util.EnumSet; |
| import java.util.HashSet; |
| import java.util.LinkedHashMap; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.Set; |
| |
| import org.apache.cassandra.auth.*; |
| import org.apache.cassandra.cql3.conditions.*; |
| import org.apache.cassandra.cql3.functions.*; |
| import org.apache.cassandra.cql3.restrictions.CustomIndexExpression; |
| import org.apache.cassandra.cql3.selection.*; |
| import org.apache.cassandra.cql3.statements.*; |
| import org.apache.cassandra.cql3.statements.schema.*; |
| import org.apache.cassandra.exceptions.ConfigurationException; |
| import org.apache.cassandra.exceptions.InvalidRequestException; |
| import org.apache.cassandra.exceptions.SyntaxException; |
| import org.apache.cassandra.schema.ColumnMetadata; |
| import org.apache.cassandra.utils.Pair; |
| } |
| |
| @members { |
| public void addErrorListener(ErrorListener listener) |
| { |
| gParser.addErrorListener(listener); |
| } |
| |
| public void removeErrorListener(ErrorListener listener) |
| { |
| gParser.removeErrorListener(listener); |
| } |
| |
| public void displayRecognitionError(String[] tokenNames, RecognitionException e) |
| { |
| gParser.displayRecognitionError(tokenNames, e); |
| } |
| |
| protected void addRecognitionError(String msg) |
| { |
| gParser.addRecognitionError(msg); |
| } |
| |
| //////////////////////////////////////////////////////////////////////////////////////////////////////////////// |
| // Recovery methods are overridden to avoid wasting work on recovering from errors when the result will be |
| // ignored anyway. |
| //////////////////////////////////////////////////////////////////////////////////////////////////////////////// |
| |
| @Override |
| protected Object recoverFromMismatchedToken(IntStream input, int ttype, BitSet follow) throws RecognitionException |
| { |
| throw new MismatchedTokenException(ttype, input); |
| } |
| |
| @Override |
| public void recover(IntStream input, RecognitionException re) |
| { |
| // Do nothing. |
| } |
| } |
| |
| @lexer::header { |
| package org.apache.cassandra.cql3; |
| } |
| |
| @lexer::members { |
| List<Token> tokens = new ArrayList<Token>(); |
| |
| public void emit(Token token) |
| { |
| state.token = token; |
| tokens.add(token); |
| } |
| |
| public Token nextToken() |
| { |
| super.nextToken(); |
| if (tokens.size() == 0) |
| return new CommonToken(Token.EOF); |
| return tokens.remove(0); |
| } |
| |
| private final List<ErrorListener> listeners = new ArrayList<ErrorListener>(); |
| |
| public void addErrorListener(ErrorListener listener) |
| { |
| this.listeners.add(listener); |
| } |
| |
| public void removeErrorListener(ErrorListener listener) |
| { |
| this.listeners.remove(listener); |
| } |
| |
| public void displayRecognitionError(String[] tokenNames, RecognitionException e) |
| { |
| for (int i = 0, m = listeners.size(); i < m; i++) |
| listeners.get(i).syntaxError(this, tokenNames, e); |
| } |
| } |
| |
| query returns [CQLStatement.Raw stmnt] |
| : st=cqlStatement (';')* EOF { $stmnt = st; } |
| ; |