package org.apache.ddlutils.platform.mysql; | |
/* | |
* 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. | |
*/ | |
import java.sql.SQLException; | |
import java.sql.Types; | |
import java.util.Map; | |
import org.apache.ddlutils.Platform; | |
import org.apache.ddlutils.model.Column; | |
import org.apache.ddlutils.model.ForeignKey; | |
import org.apache.ddlutils.model.Index; | |
import org.apache.ddlutils.model.Table; | |
import org.apache.ddlutils.platform.DatabaseMetaDataWrapper; | |
import org.apache.ddlutils.platform.JdbcModelReader; | |
/** | |
* Reads a database model from a MySql database. | |
* | |
* @version $Revision: $ | |
*/ | |
public class MySqlModelReader extends JdbcModelReader | |
{ | |
/** | |
* Creates a new model reader for MySql databases. | |
* | |
* @param platform The platform that this model reader belongs to | |
*/ | |
public MySqlModelReader(Platform platform) | |
{ | |
super(platform); | |
setDefaultCatalogPattern(null); | |
setDefaultSchemaPattern(null); | |
setDefaultTablePattern(null); | |
} | |
/** | |
* {@inheritDoc} | |
*/ | |
protected Table readTable(DatabaseMetaDataWrapper metaData, Map values) throws SQLException | |
{ | |
// TODO This needs some more work, since table names can be case sensitive or lowercase | |
// depending on the platform (really cute). | |
// See http://dev.mysql.com/doc/refman/4.1/en/name-case-sensitivity.html for more info. | |
Table table = super.readTable(metaData, values); | |
if (table != null) | |
{ | |
determineAutoIncrementFromResultSetMetaData(table, table.getPrimaryKeyColumns()); | |
} | |
return table; | |
} | |
/** | |
* {@inheritDoc} | |
*/ | |
protected Column readColumn(DatabaseMetaDataWrapper metaData, Map values) throws SQLException | |
{ | |
Column column = super.readColumn(metaData, values); | |
// MySQL converts illegal date/time/timestamp values to "0000-00-00 00:00:00", but this | |
// is an illegal ISO value, so we replace it with NULL | |
if ((column.getTypeCode() == Types.TIMESTAMP) && | |
"0000-00-00 00:00:00".equals(column.getDefaultValue())) | |
{ | |
column.setDefaultValue(null); | |
} | |
return column; | |
} | |
/** | |
* {@inheritDoc} | |
*/ | |
protected boolean isInternalPrimaryKeyIndex(DatabaseMetaDataWrapper metaData, Table table, Index index) | |
{ | |
// MySql defines a unique index "PRIMARY" for primary keys | |
return "PRIMARY".equals(index.getName()); | |
} | |
/** | |
* {@inheritDoc} | |
*/ | |
protected boolean isInternalForeignKeyIndex(DatabaseMetaDataWrapper metaData, Table table, ForeignKey fk, Index index) | |
{ | |
// MySql defines a non-unique index of the same name as the fk | |
return getPlatform().getSqlBuilder().getForeignKeyName(table, fk).equals(index.getName()); | |
} | |
} |