foundation/eclipselink.core.test/src/it/java/org/eclipse/persistence/testing/tests/jpql/SelectOneToOneTest.java

/*
 * Copyright (c) 1998, 2021 Oracle and/or its affiliates. All rights reserved.
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Public License v. 2.0 which is available at
 * http://www.eclipse.org/legal/epl-2.0,
 * or the Eclipse Distribution License v. 1.0 which is available at
 * http://www.eclipse.org/org/documents/edl-v10.php.
 *
 * SPDX-License-Identifier: EPL-2.0 OR BSD-3-Clause
 */

// Contributors:
//     Oracle - initial API and implementation from Oracle TopLink
package org.eclipse.persistence.testing.tests.jpql;


// Java imports
import java.util.*;

// Domain imports
import org.eclipse.persistence.testing.models.employee.domain.*;

//TopLink imports
import org.eclipse.persistence.queries.*;
import org.eclipse.persistence.expressions.*;

public class SelectOneToOneTest extends JPQLTestCase {
    @Override
    public void setup() {
        Vector addressesWithAnEmployee = null;
        String ejbqlString = null;

        ReadAllQuery query = new ReadAllQuery();
        query.setReferenceClass(Address.class);
        query.useDistinct();
        ExpressionBuilder employeeBuilder = new ExpressionBuilder(Employee.class);
        Expression selectionCriteria = new ExpressionBuilder(Address.class).equal(employeeBuilder.get("address")).and(employeeBuilder.get("lastName").like("%Way%"));
        query.setSelectionCriteria(selectionCriteria);

        addressesWithAnEmployee = (Vector)getSession().executeQuery(query);

        setOriginalOject(addressesWithAnEmployee);
        setReferenceClass(Employee.class);

        //setup the EJBQL to do the same
        ejbqlString = "SELECT DISTINCT employee.address FROM Employee employee WHERE employee.lastName LIKE '%Way%'";
        setEjbqlString(ejbqlString);
        super.setup();
    }
}