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/*******************************************************************************
* Copyright (c) 2006 Oracle. All rights reserved.
* This program and the accompanying materials are made available under the terms of
* the Eclipse Public License v1.0, which accompanies this distribution and is available at
* http://www.eclipse.org/legal/epl-v10.html.
*
* Contributors:
* Oracle - initial API and implementation
******************************************************************************/
package org.eclipse.jpt.core.internal.content.orm.resource;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.emf.ecore.EStructuralFeature;
import org.eclipse.wst.common.internal.emf.resource.Translator;
/**
* This translator is to be used for empty xml tags that correspond
* to a boolean attribute in the emf model.
* cascade-persist is an example from the orm.xsd:
*
* <persistence-unit-defaults>
* <cascade-persist/>
* </persistence-unit-defaults> ==> cascadePersist == true
*
* vs.
*
* <persistence-unit-defaults>
* </persistence-unit-defaults> ==> cascadePersist == false
*
*/
public class EmptyTagBooleanTranslator extends Translator
{
public EmptyTagBooleanTranslator(String domNameAndPath, EStructuralFeature feature) {
super(domNameAndPath, feature, EMPTY_TAG | BOOLEAN_FEATURE);
}
public EmptyTagBooleanTranslator(String domNameAndPath, EStructuralFeature aFeature, int style) {
super(domNameAndPath, aFeature, style | EMPTY_TAG | BOOLEAN_FEATURE);
}
@Override
public Object getMOFValue(EObject mofObject) {
// I am overriding this method. This is so the tag will be removed when
// the value is false.
// I'm not sure if this is a bug in the ecore or maybe in the translators,
// but I really don't think that we should have to depend on the boolean
// being "unset" to remove the tag.
Boolean value = (Boolean) super.getMOFValue(mofObject);
return (value == true) ? value : null;
}
}
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