PC.java

/*******************************************************************************
 * Copyright (c) 1998, 2015 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.tools.workbench.test.models.complexinheritance;

import java.util.Enumeration;

import org.eclipse.persistence.descriptors.ClassDescriptor;
import org.eclipse.persistence.expressions.ExpressionBuilder;
import org.eclipse.persistence.mappings.DatabaseMapping;
import org.eclipse.persistence.mappings.TransformationMapping;

public class PC extends Computer {
public static void addToDescriptor(ClassDescriptor descriptor) {
    descriptor.getInheritancePolicy().setWithAllSubclassesExpression(
        new ExpressionBuilder().getField("INH_COMP.CTYPE").equal("PC"));

        ExpressionBuilder builder = new ExpressionBuilder();
    descriptor.getInheritancePolicy().setOnlyInstancesExpression(
        (builder.getField("INH_COMP.CTYPE").equal("PC")).and(builder.getField("INH_COMP.PCTYPE").equal("PC")));

    // In order for this domain model to work with all of our tests, it must be set
    // up so that the transformation mapping below is not added twice.
    // As a result, we check for the mapping before adding it.
    // The reason this mapping is not added in the project is that some Mapping Workbench
    // tests rely on the ammendment method.
    Enumeration mappings = descriptor.getMappings().elements();
    while (mappings.hasMoreElements()){
        DatabaseMapping mapping = (DatabaseMapping)mappings.nextElement();
        if (mapping.isTransformationMapping()){
            Object pctype = ((TransformationMapping)mapping).getFieldNameToMethodNames().get("PCTYPE");
            if (pctype != null){
                return;
            }
        }
    }
    TransformationMapping typeMapping = new TransformationMapping();
    typeMapping.addFieldTransformation("PCTYPE", "getPCType");
    descriptor.addMapping(typeMapping);

}
@Override
public String getComputerType()
{
    return "PC";
}
public String getPCType()
{
    return "PC";
}
}