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Detect index out of sync [message #1859466]

Fri, 09 June 2023 11:30

Frank Benoit

Messages: 179
Registered: July 2009

Senior Member

Hi

In case, my application was terminated not properly (e.g. crash), the persisted index (ResourceDescriptions) may no more match the actual state.

As a solution - to bring the application again into a proper working state - a full build needs to be triggered.

Now I would like to automate this, so the user does not need to know about this.
Is there a way to detect this situation?

regards Frank

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Re: Detect index out of sync [message #1859467 is a reply to message #1859466]

Fri, 09 June 2023 12:24

Christian Dietrich

Messages: 14735
Registered: July 2009

Senior Member

@frank are you talking about eclipse usecase?
emf based persister already should do this.

Twitter : @chrdietrich
Blog : https://www.dietrich-it.de
Day Job: https://www.everest-systems.com

[Updated on: Fri, 09 June 2023 12:24]

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Re: Detect index out of sync [message #1859469 is a reply to message #1859467]

Fri, 09 June 2023 14:52

Frank Benoit

Messages: 179
Registered: July 2009

Senior Member

Yes, in Eclipse based RCP.

Thanks for the pointer.
Indeed the EmfBasedPersister is triggered.
Now I understood that it does not really do a build, it just makes the build state to be removed.
I needed to add an incremental build to ensure the index is completely valid.
At least, this solved the bug/problem I am working on.
Is this expected? (the extra needed incremental build)

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Re: Detect index out of sync [message #1859470 is a reply to message #1859469]

Fri, 09 June 2023 15:04

Christian Dietrich

Messages: 14735
Registered: July 2009

Senior Member

scheduleRecoveryBuild();
This should already be called
Does this not work ?

Twitter : @chrdietrich
Blog : https://www.dietrich-it.de
Day Job: https://www.everest-systems.com

[Updated on: Fri, 09 June 2023 15:06]

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Re: Detect index out of sync [message #1859471 is a reply to message #1859470]

Fri, 09 June 2023 15:13

Frank Benoit

Messages: 179
Registered: July 2009

Senior Member

Yes, it is always called. But in org.eclipse.xtext.builder.impl.BuildScheduler.scheduleBuildIfNecessary(Iterable<IProject>, IBuildFlag...) it goes into builderStateDiscarder.forgetLastBuildState and that's it.

What I try in my application:
import a project.
Use it -> OK
Terminate the application forcefully, reopen
Use the same project -> it fails
Terminate the application forcefully, reopen
run incremental build before use, then use it -> OK

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