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/*
* 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.tuscany.das.rdb.test.framework;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
public abstract class RelationshipData {
protected Object[][] data;
protected Connection connection;
private int currentRow = -1;
public RelationshipData(Connection c, Object[][] inputData) {
this.connection = c;
this.data = inputData;
}
public int size() {
return data[0].length;
}
public int numberOfRows() {
return data.length;
}
public boolean next() {
++currentRow;
return currentRow < numberOfRows();
}
public void refresh() throws SQLException {
updateRelationships();
}
protected abstract String getParentRetrievalStatement();
protected abstract String getChildUpdateStatement();
protected void updateRelationships() throws SQLException {
// { MegaCorp, Advanced Technologies }
// select company.id from company where company.name = ?
PreparedStatement retrieveParent = connection.prepareStatement(getParentRetrievalStatement());
// update department set department.companyid = ? where department.name = ?
PreparedStatement updateChild = connection.prepareStatement(getChildUpdateStatement());
while (next()) {
retrieveParent.setObject(1, data[currentRow][0]);
retrieveParent.execute();
ResultSet rs = retrieveParent.getResultSet();
rs.next();
Object parentID = rs.getObject(1);
retrieveParent.clearParameters();
updateChild.setObject(1, parentID);
updateChild.setObject(2, data[currentRow][1]);
updateChild.execute();
updateChild.clearParameters();
}
}
}
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