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

/*******************************************************************************
 * Copyright (c) 1998, 2013 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 v1.0 and Eclipse Distribution License v. 1.0 
 * which accompanies this distribution. 
 * The Eclipse Public License is available at http://www.eclipse.org/legal/epl-v10.html
 * and the Eclipse Distribution License is available at 
 * http://www.eclipse.org/org/documents/edl-v10.php.
 *
 * Contributors:
 *     Oracle - initial API and implementation from Oracle TopLink
 ******************************************************************************/  
package org.eclipse.persistence.testing.tests.queries.oracle;

import java.util.*;
import org.eclipse.persistence.expressions.*;
import org.eclipse.persistence.queries.*;
import org.eclipse.persistence.testing.models.inheritance.Engineer;
import org.eclipse.persistence.testing.models.inheritance.Person;

public class HierarchicalQueryWithInheritenceTest extends HierarchicalQueryTest 
{
  public HierarchicalQueryWithInheritenceTest()
  {
  }
  public void setup() {
  }
  public void reset() {
  }
  public ReadAllQuery getQuery() {
    ReadAllQuery query = new ReadAllQuery(Engineer.class);
    ExpressionBuilder builder = new ExpressionBuilder();
    Expression startWith = builder.get("name").equal("Steve");
    Expression connectBy = builder.get("bestFriend");
    query.setHierarchicalQueryClause(startWith, connectBy, null);
    return query;
  }
  public Vector expectedResults() {
    Person p = (Person)getSession().readObject(Engineer.class, new ExpressionBuilder().get("name").equal("Steve"));
    Vector result = new Vector();
    result.addElement(p);
    p = p.bestFriend;
    while ((p != null) && (!result.contains(p))) {
      result.addElement(p);
      p = p.bestFriend;
    }
    return result;
  }
}