public static Query fromOM(OMElement queryElement) { Query query = new Query(); String name = queryElement.getAttribute(new QName(CEPConstants.CEP_CONF_ATTR_NAME)).getAttributeValue(); query.setName(name); Iterator iterator = queryElement.getChildrenWithName(new QName(CEPConstants.CEP_CONF_QUERY_IP)); while (iterator != null && iterator.hasNext()) { OMElement ipElement = (OMElement) iterator.next(); String ip = ipElement.getText(); query.addIP(ip); } OMElement expressionElement = queryElement.getFirstChildWithName( new QName(CEPConstants.CEP_CONF_NAMESPACE, CEPConstants.CEP_CONF_ELE_EXPRESSION)); if (expressionElement != null) { query.setExpression(ExpressionHelper.fromOM(expressionElement)); } OMElement outputOmElement = queryElement.getFirstChildWithName( new QName(CEPConstants.CEP_CONF_NAMESPACE, CEPConstants.CEP_CONF_ELE_OUTPUT)); if (expressionElement != null && outputOmElement != null) { query.setOutput(OutputHelper.fromOM(outputOmElement)); } return query; }