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Jeffrey Drumm · Jul 26

The code block action in a DTL is for writing arbitrary ObjectScript, not Javascript. It's commonly used for for data manipulation that can't be satisfied by the methods available in the FunctionSet; for example, extracting and decoding a base64-encoded PDF from an OBX:5.5 field and writing it to a file. It can also be used to interact with globals to maintain state between invocations of the DTL, or perform a database lookup, or even write values to the default device that will display in the Test tool. Very useful for debugging.

I would not recommend using it for operations that could potentially block. There's no built-in mechanism for setting a timeout so use a BPL for those cases.

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Robert Driver · Jul 29

Thank you Jeffrey.. I have extensive experience writing back end interface processes. I rarely unsed globals or object script on the back end basic program (Cache). IRIS/ InterOperability / BPL / DTL is fascinating to to me. But, I don't really have a working Interoperability interface process to reference (which would make understanding the nuances here much easier). I am certain there are 1000s of IRIS interfaces out there. Just wish I could see one that works. :)

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