My workspace has a published parameter `area` which can have the values `country` or `province`. It also contains a SpatialFilter transformer that only needs to be executed if `area = province`. How do I evaluate whether this condition is met only once for the entire dataset? Because I have hundreds of thousands of features, I don't want to evaluate the condition for each feature seperately. I would like to do conditional processing on the *dataset* level in stead of the feature level, so Tester and TestFilter are probably not the solutions I'm looking for.
Best Answer
Conditional processing based upon published parameter on dataset level (not for each feature seperately)
+1- Participant
Best answer by redgeographics
If you use a Creator and TestFilter you can test the parameter just once and then use FeatureReaders to do the actual reading.
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+62- Celebrity
- Best Answer
If you use a Creator and TestFilter you can test the parameter just once and then use FeatureReaders to do the actual reading.
+64
If you use a Creator and TestFilter you can test the parameter just once and then use FeatureReaders to do the actual reading.
This. I never understand why people are still using classic readers?
+62- Celebrity
This. I never understand why people are still using classic readers?
Old-school FME nerd :) I find it hard to break old habits, but you are absolutely right, FeatureReaders and -Writers do offer a lot more flexibility in complex workflows.
+40- Contributor
Old-school FME nerd :) I find it hard to break old habits, but you are absolutely right, FeatureReaders and -Writers do offer a lot more flexibility in complex workflows.
For most users it easier/faster to drag and drop the file(s) to be read, then set up a creator/featureReader.
+40- Contributor
You may also wish to vote on the following idea: https://knowledge.safe.com/content/idea/61178/parameter-flow-control.html