empire-db-codegen/src/main/java/org/apache/empire/db/codegen/CodeGenParserMySQL.java

/*
 * 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.
 */
package org.apache.empire.db.codegen;

import java.sql.Types;

import org.apache.empire.data.DataType;

public class CodeGenParserMySQL extends CodeGenParser {

	// private static final Logger log = LoggerFactory.getLogger(CodeGenParserMySQL.class);
	
	public CodeGenParserMySQL(CodeGenConfig config) {
		super(config);
	}

	@Override
	protected double getColumnSize(DataType empireType, int dataType, int columnSize) {
		
		switch (empireType) {
			
			case INTEGER: {
				// return size in byte, depending on MySQL Integer Types
				// see http://dev.mysql.com/doc/refman/5.7/en/integer-types.html
				// ignore the "real" columnsize as its just a "format hint"
				switch(dataType) {
					case Types.TINYINT:
						return 1; // TINYINT, 1 byte
					case Types.SMALLINT:
						return 2; // SMALLINT, 2 byte
					case Types.BIGINT:
						return 8; // BIGINT, 8 byte
					default: 
						return 4; // Types.INTEGER, INT, 4 byte
				}
			}
			
			default:
				return super.getColumnSize(empireType, dataType, columnSize);
			
		}
		
	}
	
}