[SOLVED] Regex in rule trigger

[oeiber (Oliver Eiber)]

Hi,
is there a way to use regex in rule triggers?

for example:

when
thing „zwave:.*“ changend from ONLINE to OFFLINE
…

Thx!

[lipp_markus]

Did you see this section in the docs: https://www.openhab.org/docs/configuration/rules-dsl.html#thing-based-triggers not sure why you want Regex there (but just in case, I have never seen regex used in triggers, don’t think that is possible)

[oeiber (Oliver Eiber)]

@lipp_markus

Did you see this section in the docs: https://www.openhab.org/docs/configuration/rules-dsl.html#thing-based-triggers

Yes, i did. But it was not helpful to address my issue. I want to minimize the number of rules and instead of creating one rule for each device, I am looking for a better solution.

[rlkoshak (Rich Koshak)]

@oeiber

Yes, i did. But it was not helpful to address my issue. I want to minimize the number of rules and instead of creating one rule for each device, I am looking for a better solution.

Design Pattern: DRY, How Not to Repeat Yourself in Rules DSL

Please see Design Pattern: What is a Design Pattern and How Do I Use Them for details on what a DP is and how to use it. Problem Statement Do Not Repeat Yourself (DRY) Often an inexperienced programmer will find that a naive and straight forward approach to writing Rules DSL Rules results in a lot of duplicated code. Often experienced programmers find that the usual tools to avoid duplicated code like data structures and classes are not available in Rules DSL and they end up fighting the lang…

You don’t need regular expressions to avoid creating one Rule for each device. I’m really not even sure how using regular expressions in a Rule trigger would help achieve that goal.

[oeiber (Oliver Eiber)]

Thank you for answer Rich!
Now I completly agree, that Regex is not the only way to avoid duplicate code

Regards,
Oliver