Based on the Tap4 Workbench ChartService example, I've created a
similar service that fetches pictures from a database. I encountered
two issues that I can't figure out:
1. The URLs generated for the picture are extremely long. I assume
this is because it's serializing my page state (where the picture
lives). Is there a way to have it just include the primary key of the
table instead of everything client persisted on that page? (I persist
the database row to implement first-write-wins updating.)
2. A more puzzling problem is if a picture can't be found (doesn't
exist in the database), I want to instead send a default "no picture
available" image. How do I get either a InputStream or File to this
image stored in WEB-INF from the IEngineSerivce service() menthod?
Thanks!
Norman
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