问题
Please support me to understand the implementation of following scenario.
Suppose the user types the code written using data flow SDK commands in a text box at the front end. We need to get that code (let's say as a string) and execute at the back end. Does Data flow SDK provide a facility like a execution manager, to do such a thing? Also some resources to get familiar with such an implementation would be much appreciated.
Thanks
回答1:
Dataflow does not support the kind of dynamic evaluation of user code described in your question. In order to run a Dataflow job using the Java SDK, user code is compiled at the client, packaged into a .jar file, and distributed to the worker machines.
来源：https://stackoverflow.com/questions/35796798/dataflow-java-sdk-take-the-code-as-an-input-process-at-the-backed