foundation/eclipselink.core.test/src/it/java/org/eclipse/persistence/testing/tests/queries/oracle/HierarchicalOneToManyTest.java

/*
 * Copyright (c) 2014, 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.queries.oracle;

import java.util.Vector;

import org.eclipse.persistence.expressions.Expression;
import org.eclipse.persistence.expressions.ExpressionBuilder;
import org.eclipse.persistence.queries.ReadAllQuery;
import org.eclipse.persistence.testing.models.mapping.Employee;

public class HierarchicalOneToManyTest extends HierarchicalQueryTest {

    @Override
    public Vector expectedResults() {
        Vector<Employee> v = new Vector<>();
        Employee norman = (Employee) getSession().readObject(Employee.class, new ExpressionBuilder().get("firstName").equal("Norman"));
        v.addElement(norman);
        return v;
    }

    @Override
    public ReadAllQuery getQuery() {
        ReadAllQuery query = new ReadAllQuery(Employee.class);
        ExpressionBuilder builder = new ExpressionBuilder();
        Expression startWith = builder.get("firstName").equal("Norman");
        Expression connectBy = builder.get("managedEmployees");
        query.setHierarchicalQueryClause(startWith, connectBy, null);
        return query;
    }

}