Java Scan.eval Examples

Example #1

File: QueryExpr.java Project: zhhsplendid/Fatworm

 @Override
 public DataRecord valueExpr(Env env) {
   scan.eval(env);
   if (scan.hasNext()) {
     Record r = scan.next();
     return r.getField(0);
   } else return Null.getInstance();
 }