I think it’s a little confusing too that the default value for the optional attribute on the output ports is true, but there is a requirement implemented by the validator that negates this unless you explicitly set it to on all your output ports (to the default no less).
[cid:[email protected]] Thanks, Alex From: Thomas Weise <[email protected]> Reply-To: "[email protected]" <[email protected]> Date: Tuesday, September 13, 2016 at 11:10 AM To: "[email protected]" <[email protected]> Subject: Re: Optional output ports. That's right, if there are multiple output ports, the validation demands that at least one is connected. I actually think this validation is incorrect. It should be up to the application developer to decide how the output of an operator is consumed. It is similar to the return value of a function, you don't force the user to assign or use it? Thomas On Tue, Sep 13, 2016 at 7:29 AM, Munagala Ramanath <[email protected]<mailto:[email protected]>> wrote: Yes, if you have ports at least one must be connected if there are no annotations on them. The code is in LogicalPlan.validate() -- checkout the allPortsOptional variable. Ram On Tue, Sep 13, 2016 at 3:17 AM, Tushar Gosavi <[email protected]<mailto:[email protected]>> wrote: Hi All, I have an input operator with one output port without any annotation. When I launch the application using just this operator I get ValidationException "At least one output port must be connected". By default connecting output ports are optional, or is it mandatory to connect at least one output port of an operator, if there are no annotation on them. Regards. - Tushar. ________________________________________________________ The information contained in this e-mail is confidential and/or proprietary to Capital One and/or its affiliates and may only be used solely in performance of work or services for Capital One. The information transmitted herewith is intended only for use by the individual or entity to which it is addressed. If the reader of this message is not the intended recipient, you are hereby notified that any review, retransmission, dissemination, distribution, copying or other use of, or taking of any action in reliance upon this information is strictly prohibited. If you have received this communication in error, please contact the sender and delete the material from your computer.
