MWCompositeObjectMapping.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.mappingsmodel.mapping.xml;

import java.util.List;

import org.eclipse.persistence.internal.helper.DatabaseField;
import org.eclipse.persistence.mappings.DatabaseMapping;
import org.eclipse.persistence.mappings.foundation.AbstractCompositeObjectMapping;
import org.eclipse.persistence.oxm.XMLDescriptor;
import org.eclipse.persistence.oxm.mappings.XMLCompositeObjectMapping;
import org.eclipse.persistence.tools.workbench.mappingsmodel.ProblemConstants;
import org.eclipse.persistence.tools.workbench.mappingsmodel.descriptor.xml.MWXmlDescriptor;
import org.eclipse.persistence.tools.workbench.mappingsmodel.mapping.MWMapping;
import org.eclipse.persistence.tools.workbench.mappingsmodel.meta.MWClassAttribute;
import org.eclipse.persistence.tools.workbench.utility.ClassTools;

public final class MWCompositeObjectMapping
    extends MWAbstractCompositeMapping
{
    // **************** Constructors ******************************************

    /** Default constructor - for TopLink use only */
    private MWCompositeObjectMapping() {
        super();
    }

    MWCompositeObjectMapping(MWXmlDescriptor parent, MWClassAttribute attribute, String name) {
        super(parent, attribute, name);
    }


    // **************** MWXpathContext implementation *************************

    protected boolean mayUseCollectionData() {
        return false;
    }


    // **************** Morphing **********************************************

    public MWCompositeObjectMapping asCompositeObjectMapping() {
        return this;
    }

    protected void initializeOn(MWMapping newMapping) {
        newMapping.initializeFromMWCompositeObjectMapping(this);
    }


    // **************** Problem handling **************************************

    protected void addXmlFieldProblemsTo(List newProblems) {
        super.addXmlFieldProblemsTo(newProblems);
        this.addXmlFieldNotSingularProblemTo(newProblems);
    }

    private void addXmlFieldNotSingularProblemTo(List newProblems) {
        if (this.getXmlField().isValid() && ! this.getXmlField().isSingular()) {
            newProblems.add(this.buildProblem(ProblemConstants.XPATH_NOT_SINGULAR, this.getXmlField().getXpath()));
        }
    }


    // **************** Runtime conversion ************************************

    protected DatabaseMapping buildRuntimeMapping() {
        return this.xmlDescriptor().buildDefaultRuntimeCompositeObjectMapping();
    }

    public DatabaseMapping runtimeMapping() {
        AbstractCompositeObjectMapping runtimeMapping =
            (AbstractCompositeObjectMapping) super.runtimeMapping();
        ClassTools.invokeMethod(runtimeMapping, "setField", new Class[] {DatabaseField.class}, new Object[] {this.getXmlField().runtimeField()});

        if (runtimeMapping.isXMLMapping()) {
            this.getContainerAccessor().adjustRuntimeMapping(runtimeMapping);
        }

        return runtimeMapping;
    }


    // **************** TopLink methods ***************************************

    public static XMLDescriptor buildDescriptor() {
        XMLDescriptor descriptor = new XMLDescriptor();
        descriptor.setJavaClass(MWCompositeObjectMapping.class);
        descriptor.descriptorIsAggregate();

        descriptor.getInheritancePolicy().setParentClass(MWAbstractCompositeMapping.class);

        return descriptor;
    }
}