/*
* Copyright 1999-2011 Alibaba Group Holding Ltd.
*
* Licensed 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.
*/
package com.alibaba.druid.sql.dialect.oracle.parser;
import com.alibaba.druid.sql.ast.SQLName;
import com.alibaba.druid.sql.dialect.oracle.ast.stmt.OracleDeleteStatement;
import com.alibaba.druid.sql.parser.Lexer;
import com.alibaba.druid.sql.parser.ParserException;
import com.alibaba.druid.sql.parser.SQLStatementParser;
import com.alibaba.druid.sql.parser.Token;
public class OracleDeleteParser extends SQLStatementParser {
public OracleDeleteParser(String sql){
super(sql);
}
public OracleDeleteParser(Lexer lexer){
super(lexer);
}
public OracleDeleteStatement parseDelete() throws ParserException {
accept(Token.DELETE);
OracleDeleteStatement deleteStatement = new OracleDeleteStatement();
parseHints(deleteStatement);
if (lexer.token() == (Token.FROM)) {
lexer.nextToken();
}
if (identifierEquals("ONLY")) {
lexer.nextToken();
accept(Token.LPAREN);
SQLName tableName = exprParser.name();
deleteStatement.setTableName(tableName);
accept(Token.RPAREN);
} else {
SQLName tableName = exprParser.name();
deleteStatement.setTableName(tableName);
}
deleteStatement.setAlias(as());
if (lexer.token() == (Token.WHERE)) {
lexer.nextToken();
deleteStatement.setWhere(this.exprParser.expr());
}
if (identifierEquals("RETURN") || identifierEquals("RETURNING")) {
throw new ParserException("TODO");
}
if (identifierEquals("LOG")) {
throw new ParserException("TODO");
}
return deleteStatement;
}
private void parseHints(OracleDeleteStatement parseInsert) throws ParserException {
if (lexer.token() == Token.HINT) throw new ParserException("TODO");
}
}