foundation/eclipselink.core.test/src/it/java/org/eclipse/persistence/testing/tests/aggregate/QueryKeyInAggregateInheritanceTest.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.aggregate;

import java.util.Collection;

import org.eclipse.persistence.expressions.Expression;
import org.eclipse.persistence.expressions.ExpressionBuilder;
import org.eclipse.persistence.queries.ReadAllQuery;
import org.eclipse.persistence.sessions.UnitOfWork;

import org.eclipse.persistence.testing.framework.TestCase;

import org.eclipse.persistence.testing.models.aggregate.Car;
import org.eclipse.persistence.testing.models.aggregate.Transport;

/**
 * Test performing an in memory query on a query key inherited by an
 * aggregate object in an inheritance hierarchy.
 * EL Bug 326977
 */
public class QueryKeyInAggregateInheritanceTest extends TestCase {

    protected Collection<Transport> results;

    public QueryKeyInAggregateInheritanceTest() {
        super();
        setDescription("Conforming query on a QueryKey defined on an aggregate object with an inheritance hierarchy");
    }

    @Override
    public void test() {
        UnitOfWork uow = getSession().acquireUnitOfWork();

        Car example = new Car();
        example.setMake("Audi");
        example.setModel("TT");
        example.setColour("Azure");
        example.setCapacity(2);

        Transport transport = new Transport();
        transport.setVehicle(example);

        uow.registerObject(transport);

        ReadAllQuery query = new ReadAllQuery(Transport.class);
        ExpressionBuilder builder = query.getExpressionBuilder();
        Expression expression = builder.get("vehicle").get("colour").equal("Azure");
        query.setSelectionCriteria(expression);
        query.conformResultsInUnitOfWork();

        results = (Collection)uow.executeQuery(query);
    }

    @Override
    public void verify() {
        if (results == null || results.isEmpty()) {
            throwError("No results were returned");
        } else if (results.size() != 1) {
            throwError("Incorrect results size: " + results);
        }
    }

    @Override
    public void reset() {
        this.results = null;
    }

}