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How to avoid validation trigger in Xtext [message #1693872]

Wed, 29 April 2015 03:59

Arshad Adavani

Messages: 163
Registered: July 2013
Location: Bangalore

Senior Member

Hi All,
Suppose I am modifying a file, in the background all the validations which do not have CheckType.Normal will be called.

i.e. by default it will be CheckType.Fast. I want to avoid the validations if there are no real changes in the editor . Consider a case where I just enter a whitespace or a comment etc.

Can we achieve this ..?

Thanks for any help Smile

Arshad

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Re: How to avoid validation trigger in Xtext [message #1693873 is a reply to message #1693872]

Wed, 29 April 2015 04:11

Christian Dietrich

Messages: 14665
Registered: July 2009

Senior Member

why not using fast checks for checks that are fast so that it does not matter and normal checks for the rest?
you cannot detect if the change is whitespace only or not since the ast is (partially) recreated

Twitter : @chrdietrich
Blog : https://www.dietrich-it.de

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Re: How to avoid validation trigger in Xtext [message #1693874 is a reply to message #1693873]

Wed, 29 April 2015 04:14

Arshad Adavani

Messages: 163
Registered: July 2013
Location: Bangalore

Senior Member

Hi Christian,

I have done it. But my CheckType.Normal checks takes longer time as my input data is huge. Hence the UI gets blocked.

Just wanted to know if I could achieve this in a better way.

Regards,
Arshad

Arshad

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Re: How to avoid validation trigger in Xtext [message #1693875 is a reply to message #1693874]

Wed, 29 April 2015 04:20

Christian Dietrich

Messages: 14665
Registered: July 2009

Senior Member

Hid you profile your validation?
e.g. for some n2 problems?

it may help you to find places on how to optimize the impl of the checks

Twitter : @chrdietrich
Blog : https://www.dietrich-it.de

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Re: How to avoid validation trigger in Xtext [message #1693907 is a reply to message #1693872]

Wed, 29 April 2015 09:10

Karsten Thoms

Messages: 762
Registered: July 2009
Location: Dortmund, Germany

Senior Member

If your checks are so expensive and blocking, you should use also CheckType.EXPENSIVE. This is what it is for.
Use FAST only if you can do this on typing, normal on saving.
And right, prove if they could execute faster.

What you are asking originally sounds like the need for an ugly workaround. Avoid this.

Need professional support for Xtext, EMF, Eclipse IDE?
Go to: http://devhub.karakun.com
Twitter : @kthoms
Blog : www.karsten-thoms.de

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Re: How to avoid validation trigger in Xtext [message #1693931 is a reply to message #1693874]

Wed, 29 April 2015 11:04

Sebastian Zarnekow

Messages: 3118
Registered: July 2009

Senior Member

Validation is run in the background and cancelled when the user
continues to type (since 2.8). Where do you see blocked UI?

Best,
Sebastian
--
Looking for professional support for Xtext, Xtend or Eclipse Modeling?
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Blog: zarnekow.blogspot.com
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