+ if (operation!=null) return operation;
+ if (query.length()==0) return null;
+ String queryStr = query.toString().toLowerCase();
+ String firstOp = null;
+ int firstOpChar = query.length();
+ if (queryStr.indexOf("insert")>-1 && queryStr.indexOf("insert")<firstOpChar) {
+ firstOp = "insert";
+ firstOpChar = queryStr.indexOf("insert");
+ }
+ if (queryStr.indexOf("update")>-1 && queryStr.indexOf("update")<firstOpChar) {
+ firstOp = "update";
+ firstOpChar = queryStr.indexOf("update");
+ }
+ if (queryStr.indexOf("delete")>-1 && queryStr.indexOf("delete")<firstOpChar) {
+ firstOp = "delete";
+ firstOpChar = queryStr.indexOf("delete");
+ }
+ if (queryStr.indexOf("select")>-1 && queryStr.indexOf("select")<firstOpChar) {
+ firstOp = "select";
+ firstOpChar = queryStr.indexOf("select");
+ }
+ return firstOp;