* @param fields A list of entity attributes.
* @return Object graph
*/
private ObjectGraph createObjectGraph(final Object entity, final List<String> fields) {
ObjectGraph objectGraph = getJAXBContext().createObjectGraph(entity.getClass());
objectGraph.addAttributeNodes("_persistence_links", "_persistence_relationshipInfo");
for (String field : fields) {
objectGraph.addAttributeNodes(field);
}
return objectGraph;
}