[jboss-jira] [JBoss JIRA] (DROOLS-3262) [DMN Designer] The `defaultOutputValue` and the `outputValue` are being persisted when the value is empty in the UI

[Guilherme Carreiro (Jira)]

     [ https://issues.jboss.org/browse/DROOLS-3262?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Guilherme Carreiro updated DROOLS-3262:
---------------------------------------
    Description: 
When the user persists the following diagram:
 !diagram.png|thumbnail! 

..with the following Decision Table:
 !dtable.png|thumbnail! 

..select the "Can drink beer?" header, and set no output:
 !no-outputs.png|thumbnail! 

..the persisted value will be something like this:
{quote}
      <dmn:output id="_E9E45B42-9506-4D66-B2AF-44B161590B43" name="output-1" typeRef="string">
        <dmn:outputValues id="_F02DC5E5-ECCE-4B3A-87A8-9CDC74A7F81A">
          <dmn:text></dmn:text>
        </dmn:outputValues>
        <dmn:defaultOutputEntry id="_A7CFCB22-3D05-4CDB-925B-D4FD52F3D018" typeRef="string">
          <dmn:text></dmn:text>
        </dmn:defaultOutputEntry>
      </dmn:output>
{quote}

..and the expected behaviour is to not have the tags `dmn:outputValues` and `dmn:defaultOutputEntry` when the value for them is empty, like this:
{quote}
      <dmn:output id="_E9E45B42-9506-4D66-B2AF-44B161590B43" name="output-1" typeRef="string">
      </dmn:output>
{quote}

  was:
When the user persists the following diagram:
 !diagram.png|thumbnail! 

..with the following Decision Table:
 !dtable.png|thumbnail! 

..select the "Can drink beer?" header, and set no output:
 !no-outputs.png|thumbnail! 

..the persisted value will be something like this:
{quote}
      <dmn:output id="_E9E45B42-9506-4D66-B2AF-44B161590B43" name="output-1" typeRef="string">
        <dmn:outputValues id="_F02DC5E5-ECCE-4B3A-87A8-9CDC74A7F81A">
          <dmn:text></dmn:text>
        </dmn:outputValues>
        <dmn:defaultOutputEntry id="_A7CFCB22-3D05-4CDB-925B-D4FD52F3D018" typeRef="string">
          <dmn:text></dmn:text>
        </dmn:defaultOutputEntry>
      </dmn:output>
{quote}

..and the expected behaviour is to not have the tags `dmn:outputValues` and `dmn:defaultOutputEntry` when the value for them is empty.



> [DMN Designer] The `defaultOutputValue` and the `outputValue` are being persisted when the value is empty in the UI
> -------------------------------------------------------------------------------------------------------------------
>
>                 Key: DROOLS-3262
>                 URL: https://issues.jboss.org/browse/DROOLS-3262
>             Project: Drools
>          Issue Type: Bug
>          Components: DMN Editor
>            Reporter: Guilherme Carreiro
>            Assignee: Michael Anstis
>            Priority: Blocker
>              Labels: drools-tools
>         Attachments: diagram.png, dtable.png, no-outputs.png
>
>
> When the user persists the following diagram:
>  !diagram.png|thumbnail! 
> ..with the following Decision Table:
>  !dtable.png|thumbnail! 
> ..select the "Can drink beer?" header, and set no output:
>  !no-outputs.png|thumbnail! 
> ..the persisted value will be something like this:
> {quote}
>       <dmn:output id="_E9E45B42-9506-4D66-B2AF-44B161590B43" name="output-1" typeRef="string">
>         <dmn:outputValues id="_F02DC5E5-ECCE-4B3A-87A8-9CDC74A7F81A">
>           <dmn:text></dmn:text>
>         </dmn:outputValues>
>         <dmn:defaultOutputEntry id="_A7CFCB22-3D05-4CDB-925B-D4FD52F3D018" typeRef="string">
>           <dmn:text></dmn:text>
>         </dmn:defaultOutputEntry>
>       </dmn:output>
> {quote}
> ..and the expected behaviour is to not have the tags `dmn:outputValues` and `dmn:defaultOutputEntry` when the value for them is empty, like this:
> {quote}
>       <dmn:output id="_E9E45B42-9506-4D66-B2AF-44B161590B43" name="output-1" typeRef="string">
>       </dmn:output>
> {quote}



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