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EVL : How to apply fixes in correct order? [message #1850358]

Sat, 26 February 2022 16:26

jo ber

Messages: 94
Registered: August 2018

Member

Hi

I've defined a list of constraints, each of them contains one fix directive. To apply programmatically the fix when an error occurs I'm using the following code:

		EvlModule module = new EvlModule();
		module.parse(new File(validationDefinitions));
		module.getContext().getModelRepository().addModel(inModel);
		Set<UnsatisfiedConstraint> errors = module.execute();

		for(UnsatisfiedConstraint error : errors) {
			for(FixInstance fi : error.getFixes()) {
				fi.perform();
			}
			error.setFixed(true);
			
			if(saveFixes) {
				saveResourceAfterFixApplication(inModel.getResource(), error.getConstraint().getName());
			}
		}

However, the order in which the fixes are applied to my instances seem not to correspond to the order I've defined in my constraints (using

satisfies(...)

).

Thank you and kind regards.

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Re: EVL : How to apply fixes in correct order? [message #1850362 is a reply to message #1850358]

Sun, 27 February 2022 08:51

Dimitris Kolovos

Messages: 2165
Registered: July 2009
Location: York, UK

Senior Member

Hi Jo,

The order in which unsatisfied constraints are detected is not preserved in the result of module.execute(). To work around this you could try extending EvlContext and in its constructor [1], set unsatisfiedConstraints to a new LinkedHashSet(), which preserves insertion order.

Best,
Dimitris

[1] https://git.eclipse.org/c/epsilon/org.eclipse.epsilon.git/tree/plugins/org.eclipse.epsilon.evl.engine/src/org/eclipse/epsilon/evl/execute/context/EvlContext.java#n32

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