Dynamic Web Development with Seaside

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26.4Exceptions

Since actions on the meta-model can fail. In addition, objects might not match a given meta-model. Finally it is often important to present to the end users readable error messages. Magritte introduces an exception hierarchy which knows about the description, the failure and a human-readable error message as shown in Figure 166.

Exceptions

Copyright © 22 July 2017 Stéphane Ducasse, Lukas Renggli, C. David Shaffer, Rick Zaccone
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