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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.jdo.tck.query.jdoql;
import org.apache.jdo.tck.JDO_Test;
import org.apache.jdo.tck.pc.company.CompanyModelReader;
import org.apache.jdo.tck.pc.company.Employee;
import org.apache.jdo.tck.query.QueryElementHolder;
import org.apache.jdo.tck.query.QueryTest;
import org.apache.jdo.tck.util.BatchTestRunner;
/**
*<B>Title:</B> Handling of Null Collections and isEmpty in Queries
*<BR>
*<B>Keywords:</B> query nullcollection
*<BR>
*<B>Assertion ID:</B> A14.6.2-34.
*<BR>
*<B>Assertion Description: </B>
* <code>null</code>-valued fields of <code>Collection</code> types are treated
* as if they were empty and <code>isEmpty</code> returns <code>true</code>.
*/
public class NullCollectionsAndIsEmpty extends QueryTest {
/** */
private static final String ASSERTION_FAILED =
"Assertion A14.6.2-34 (NullCollectionsAndIsEmpty) failed: ";
/**
* The array of valid queries which may be executed as
* single string queries and as API queries.
*/
private static final QueryElementHolder[] VALID_QUERIES = {
// isEmpty
new QueryElementHolder(
/*UNIQUE*/ null,
/*RESULT*/ null,
/*INTO*/ null,
/*FROM*/ Employee.class,
/*EXCLUDE*/ null,
/*WHERE*/ "personid == 1 && projects.isEmpty()",
/*VARIABLES*/ null,
/*PARAMETERS*/ null,
/*IMPORTS*/ null,
/*GROUP BY*/ null,
/*ORDER BY*/ null,
/*FROM*/ null,
/*TO*/ null),
};
/**
* The expected results of valid queries.
*/
private Object[] expectedResult = {
// isEmpty
getTransientCompanyModelInstancesAsList(new String[]{"emp1"})
};
/**
* The <code>main</code> is called when the class
* is directly executed from the command line.
* @param args The arguments passed to the program.
*/
public static void main(String[] args) {
BatchTestRunner.run(NullCollectionsAndIsEmpty.class);
}
/** */
public void testPositive() {
for (int i = 0; i < VALID_QUERIES.length; i++) {
executeAPIQuery(ASSERTION_FAILED, VALID_QUERIES[i],
expectedResult[i]);
executeSingleStringQuery(ASSERTION_FAILED, VALID_QUERIES[i],
expectedResult[i]);
}
}
/**
* @see JDO_Test#localSetUp()
*/
protected void localSetUp() {
addTearDownClass(CompanyModelReader.getTearDownClasses());
loadAndPersistCompanyModel(getPM());
getPM().currentTransaction().begin();
Employee emp1 = (Employee) getPersistentCompanyModelInstance("emp1");
emp1.setProjects(null);
getPM().currentTransaction().commit();
}
}