Codegen module allows to build classes and methods in runtime without the overhead of reflection.
- Dynamically creates classes needed for runtime query processing (storing the results of computation, intermediate tuples, compound keys etc.)
- Implements basic relational algebra operations for individual items: aggregate functions, projections, predicates, ordering, group-by etc.
- Since I/O overhead is already minimal due to Eventloop module, bytecode generation ensures that business logic (such as innermost loops processing millions of items) is also as fast as possible
- Easy to use API that encapsulates most of the complexity involved in working with bytecode
- Dynamic Class Creation
To run the example, you should execute those three lines in the console in appropriate folder: