jpa/eclipselink.jpa.test/src/it/java/org/eclipse/persistence/testing/models/jpa/advanced/EmployeeCustomizer.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.models.jpa.advanced;

import org.eclipse.persistence.config.DescriptorCustomizer;
import org.eclipse.persistence.descriptors.ClassDescriptor;
import org.eclipse.persistence.expressions.ExpressionBuilder;
import org.eclipse.persistence.mappings.querykeys.OneToManyQueryKey;
import org.eclipse.persistence.mappings.querykeys.OneToOneQueryKey;

public class EmployeeCustomizer implements DescriptorCustomizer {
    public EmployeeCustomizer() {}

    @Override
    public void customize(ClassDescriptor descriptor) {
        descriptor.setShouldDisableCacheHits(false);

        descriptor.addDirectQueryKey("startTime", "START_TIME");

        OneToOneQueryKey queryKey = new OneToOneQueryKey();
        queryKey.setName("boss");
        queryKey.setReferenceClass(Employee.class);
        ExpressionBuilder builder = new ExpressionBuilder();
        queryKey.setJoinCriteria(builder.getField("MANAGER_EMP_ID").equal(builder.getParameter("EMP_ID")));
        descriptor.addQueryKey(queryKey);

        OneToManyQueryKey otmQueryKey = new OneToManyQueryKey();
        otmQueryKey.setName("phoneQK");
        otmQueryKey.setReferenceClass(PhoneNumber.class);
        builder = new ExpressionBuilder();
        otmQueryKey.setJoinCriteria(builder.getField("OWNER_ID").equal(builder.getParameter("EMP_ID")));
        descriptor.addQueryKey(otmQueryKey);
    }
}