[jboss-jira] [JBoss JIRA] (DROOLS-4724) [DMN Designer] Do not default to a LiteralExpression when no expression is defined

[Matteo Mortari (Jira)]

     [ https://issues.jboss.org/browse/DROOLS-4724?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Matteo Mortari updated DROOLS-4724:
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    Attachment: screenshot-1.png


> [DMN Designer] Do not default to a LiteralExpression when no expression is defined
> ----------------------------------------------------------------------------------
>
>                 Key: DROOLS-4724
>                 URL: https://issues.jboss.org/browse/DROOLS-4724
>             Project: Drools
>          Issue Type: Enhancement
>          Components: DMN Editor
>            Reporter: Matteo Mortari
>            Assignee: Michael Anstis
>            Priority: Major
>              Labels: drools-tools
>         Attachments: error.log, image-2019-11-04-19-39-01-113.png, image-2019-11-04-19-40-27-201.png, save-context.webm, screenshot-1.png
>
>
> Currently, the DMN Editor will default to a blank LiteralExpression on Save if the user did not provide an expression for an element.
> However Error message is reported anyway to the user:
>  !image-2019-11-04-19-39-01-113.png|thumbnail! 
> This also as the (imho undesired) side-effect that if the user was to re-open later that file, instead of a empty element, it would be a blank LiteralExpression
>  !image-2019-11-04-19-40-27-201.png|thumbnail! 
> so the current behavior is not consistent across re-open of the editor.
> Let's revert this default.
> The DMN Editor on save should +not+ default to a blank LiteralExpression if the user did not provide an expression for the element.
> Once this change is applied from the f/e side, I am happy to be involved in order to assess which of the messages reported by the Validator or the Compiler are causing issue to the WB (if any).
> Currently, the DMN Compiler will throw 1 Warning.
> Currently, the DMN Validator will throw 1 Error (I can align this to be a Warn too).
> Currently, the DMN Validator schema check is not reporting any XSD violation.
> h2. Manual acceptance test
> Try to save default / empty
> h3. Business Central
> - Decision node (/)
> - BKM node (/)
> - Cleared Function (/)
> - Context entry (x)   [^error.log]   [^save-context.webm] 
> - Invocation (/)
> h3. Kogito
> - Decision node (/)
> - BKM node (/)
> - Cleared Function (/)
> - Context entry (/)
> - Invocation (/)



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