package org.apache.ddlutils.platform.axion;
/*
* 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.util.ArrayList;
import java.util.Collection;
import org.apache.ddlutils.Platform;
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 an Axion database.
*
* @version $Revision: $
*/
public class AxionModelReader extends JdbcModelReader
{
/**
* Creates a new model reader for Axion databases.
*
* @param platform The platform that this model reader belongs to
*/
public AxionModelReader(Platform platform)
{
super(platform);
setDefaultCatalogPattern(null);
setDefaultSchemaPattern(null);
setDefaultTablePattern("%");
}
/**
* {@inheritDoc}
*/
protected Collection readPrimaryKeyNames(DatabaseMetaDataWrapper metaData, String tableName) throws SQLException
{
// Axion still does not support DatabaseMetaData#getPrimaryKeys
return new ArrayList();
}
/**
* {@inheritDoc}
*/
protected Collection readForeignKeys(DatabaseMetaDataWrapper metaData, String tableName) throws SQLException
{
// Axion still does not support DatabaseMetaData#getImportedKeys or #getExportedKeys
return new ArrayList();
}
/**
* {@inheritDoc}
*/
protected void removeSystemIndices(DatabaseMetaDataWrapper metaData, Table table) throws SQLException
{
// Axion's JDBC driver does not support primary key reading, so we have to filter at this level
for (int indexIdx = 0; indexIdx < table.getIndexCount();)
{
Index index = table.getIndex(indexIdx);
// also, Axion's internal indices are not unique
if (index.getName().startsWith("SYS_"))
{
table.removeIndex(indexIdx);
}
else
{
indexIdx++;
}
}
}
}