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/**
*
* Copyright 2005 The Apache Software Foundation or its licensors, as applicable.
*
* 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 org.apache.tuscany.das.rdb.test;
/*
*
*
*/
import org.apache.tuscany.das.rdb.ApplyChangesCommand;
import org.apache.tuscany.das.rdb.Command;
import org.apache.tuscany.das.rdb.SDODataTypes;
import org.apache.tuscany.das.rdb.test.data.CustomerData;
import org.apache.tuscany.das.rdb.test.data.OrderData;
import org.apache.tuscany.das.rdb.test.framework.DasTest;
import commonj.sdo.DataObject;
public class RelationshipTests extends DasTest {
protected void setUp() throws Exception {
super.setUp();
new CustomerData(getAutoConnection()).refresh();
new OrderData(getAutoConnection()).refresh();
}
protected void tearDown() throws Exception {
super.tearDown();
}
/**
* Test ability to read a compound graph
*/
public void testRead() throws Exception {
String statement = "SELECT * FROM CUSTOMER LEFT JOIN ANORDER ON CUSTOMER.ID = ANORDER.CUSTOMER_ID WHERE CUSTOMER.ID = 1";
// Read some customers and related orders
Command select = Command.FACTORY.createCommand(statement, getConfig("customerOrderRelationshipMapping.xml"));
select.setConnection(getConnection());
DataObject root = select.executeQuery();
DataObject customer = root.getDataObject("CUSTOMER[1]");
assertEquals(2, customer.getList("orders").size());
}
/**
* Test ability to extract and flush relationhip changes from the change
* history
*/
public void testRelationshipModification() throws Exception {
// Read some customers and related orders
Command select = Command.FACTORY
.createCommand("SELECT * FROM CUSTOMER LEFT JOIN ANORDER ON CUSTOMER.ID = ANORDER.CUSTOMER_ID");
select.setConnection(getConnection());
// Set minimum metadata necessary to describe relationship
// Maybe something like this ...
select.addRelationship("CUSTOMER.ID", "ANORDER.CUSTOMER_ID");
select.addPrimaryKey("CUSTOMER.ID");
select.addPrimaryKey("ANORDER.ID");
DataObject root = select.executeQuery();
DataObject cust1 = root.getDataObject("CUSTOMER[1]");
DataObject cust2 = root.getDataObject("CUSTOMER[2]");
// Save IDs
Integer cust1ID = (Integer) cust1.get("ID");
Integer cust2ID = (Integer) cust2.get("ID");
// save order count
Integer cust1OrderCount = new Integer(cust1.getList("ANORDER").size());
Integer cust2OrderCount = new Integer(cust2.getList("ANORDER").size());
// Move an order to cust1 from cust2
DataObject order = (DataObject) cust2.getList("ANORDER").get(0);
cust1.getList("ANORDER").add(order);
// Build apply changes command
ApplyChangesCommand apply = Command.FACTORY
.createApplyChangesCommand();
apply.setConnection(getConnection());
// Manually create and add commands
Command update = Command.FACTORY
.createCommand("update ANORDER set CUSTOMER_ID = :CUSTOMER_ID where ID = :ID");
update.addParameter("CUSTOMER_ID", SDODataTypes.INTEGER);
update.addParameter("ID", SDODataTypes.INTEGER);
update.addRelationship("CUSTOMER.ID", "ANORDER.CUSTOMER_ID");
update.addPrimaryKey("CUSTOMER.ID");
update.addPrimaryKey("ANORDER.ID");
apply.addUpdateCommand(order.getType(), update);
// Flush changes
apply.execute(root);
// verify cust1 relationship updates
select = Command.FACTORY
.createCommand("SELECT * FROM CUSTOMER LEFT JOIN ANORDER ON CUSTOMER.ID = ANORDER.CUSTOMER_ID where CUSTOMER.ID = :ID");
select.setConnection(getConnection());
select.setParameterValue("ID", cust1ID);
select.addRelationship("CUSTOMER.ID", "ANORDER.CUSTOMER_ID");
select.addPrimaryKey("CUSTOMER.ID");
select.addPrimaryKey("ANORDER.ID");
root = select.executeQuery();
assertEquals(cust1OrderCount.intValue() + 1, root.getList(
"CUSTOMER[1]/ANORDER").size());
// verify cust2 relationship updates
select.setParameterValue("ID", cust2ID);
root = select.executeQuery();
assertEquals(cust2OrderCount.intValue() - 1, root.getList(
"CUSTOMER[1]/ANORDER").size());
}
/**
* Same as above except uses xml file for relationhip and key information.
* Employs CUD generation.
*/
public void testRelationshipModification2() throws Exception {
// Read some customers and related orders
Command select = Command.FACTORY
.createCommand(
"SELECT * FROM CUSTOMER LEFT JOIN ANORDER ON CUSTOMER.ID = ANORDER.CUSTOMER_ID", getConfig("basicCustomerOrderMapping.xml"));
select.setConnection(getConnection());
DataObject root = select.executeQuery();
DataObject cust1 = root.getDataObject("CUSTOMER[1]");
DataObject cust2 = root.getDataObject("CUSTOMER[2]");
// Save IDs
Integer cust1ID = (Integer) cust1.get("ID");
Integer cust2ID = (Integer) cust2.get("ID");
// save order count
Integer cust1OrderCount = new Integer(cust1.getList("orders").size());
Integer cust2OrderCount = new Integer(cust2.getList("orders").size());
// Move an order to cust1 from cust2
DataObject order = (DataObject) cust2.getList("orders").get(0);
cust1.getList("orders").add(order);
// Build apply changes command
ApplyChangesCommand apply = Command.FACTORY.createApplyChangesCommand(getConfig("basicCustomerOrderMapping.xml"));
apply.setConnection(getConnection());
// Flush changes
apply.execute(root);
// verify cust1 relationship updates
select = Command.FACTORY
.createCommand(
"SELECT * FROM CUSTOMER LEFT JOIN ANORDER ON CUSTOMER.ID = ANORDER.CUSTOMER_ID where CUSTOMER.ID = :ID",
getConfig("basicCustomerOrderMapping.xml"));
select.setConnection(getConnection());
select.setParameterValue("ID", cust1ID);
root = select.executeQuery();
assertEquals(cust1OrderCount.intValue() + 1, root.getList(
"CUSTOMER[1]/orders").size());
// verify cust2 relationship updates
select.setParameterValue("ID", cust2ID);
root = select.executeQuery();
assertEquals(cust2OrderCount.intValue() - 1, root.getList(
"CUSTOMER[1]/orders").size());
}
}
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