public Object start(final String uri, final String localName,
final Attributes attrs, final ExtensibleXmlParser parser)
throws SAXException {
parser.startElementBuilder(localName, attrs);
Association association = new Association();
association.setId(attrs.getValue("id"));
association.setSourceRef(attrs.getValue("sourceRef"));
association.setTargetRef(attrs.getValue("targetRef"));
Process parent = (Process) parser.getParent();
Definitions definitions = (Definitions)
parent.getMetaData().get("Definitions");