foundation/eclipselink.core.test/src/org/eclipse/persistence/testing/tests/jpql/SimpleConcatTest.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.jpql;

import java.util.*;
import org.eclipse.persistence.queries.*;
import org.eclipse.persistence.expressions.*;
import org.eclipse.persistence.testing.models.employee.domain.*;

public class SimpleConcatTest extends org.eclipse.persistence.testing.tests.jpql.JPQLTestCase {
	protected final static int MIN_FIRSTNAME_LENGTH = 2;
	
    public void setup() {
        // Bug 223005: Verify that we have at least 1 employee with the required field length otherwise an EclipseLinkException will be thrown
        Employee emp = getEmployeeWithRequiredNameLength(MIN_FIRSTNAME_LENGTH, getName());

        String partOne;
        String partTwo;
        String ejbqlString;
        
        partOne = emp.getFirstName().substring(0, 2);
        ExpressionBuilder builder = new ExpressionBuilder();
        Expression whereClause = builder.get("firstName").concat(builder.get("lastName")).like(partOne + "%");

        ReadAllQuery raq = new ReadAllQuery();
        raq.setReferenceClass(Employee.class);
        raq.setSelectionCriteria(whereClause);

        Vector employees = (Vector)getSession().executeQuery(raq);

        ejbqlString = "SELECT OBJECT(emp) FROM Employee emp WHERE ";
        ejbqlString = ejbqlString + "CONCAT(emp.firstName,emp.lastName) LIKE ";
        ejbqlString = ejbqlString + "\"" + partOne + "%\"";

        setEjbqlString(ejbqlString);
        setOriginalOject(employees);
        super.setup();
    }
}