[jboss-jira] [JBoss JIRA] (DROOLS-1477) DMN Extension Elements

[Alexandros Koufoudakis (JIRA)]

     [ https://issues.jboss.org/browse/DROOLS-1477?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Alexandros Koufoudakis updated DROOLS-1477:
-------------------------------------------
    Description: 
To use extension elements inside inputData elements in order to provide “external” information: GEO location, time and location tracking of a decision making (when and were specific decision was taken). This is the primary scope of the use.

In case extension element represents a complex type customer prefers to get back an instance of the complex type, assuming the complex type is defined as a class by the development team on the customer side. However, the customer also understands that it can be more complex and considers the possibility to get the complex type as an XML snippet. The parsing and turning the XML snippet into the complex type, defined by the customer.

The possibility of getting the list of extension elements is expected from other DMN elements, which extend from DMNElement, according to the DMN specification and meta model diagram by OMG. In other words, the usage of extension elements is not limited to be a part of input data elements only.

The client is not expecting “authoring” of the extension elements.
Since extension elements are a part of DMN specification, this is an attempt to make it possible for drools to register custom extension elements in a generic way.

  was:Currently, the extension elements are disregarded. As I'm working in one of the projects, which uses Drools 7 beta release and relies on extension elements, I would like to add this feature and to try to implement it.



> DMN Extension Elements
> ----------------------
>
>                 Key: DROOLS-1477
>                 URL: https://issues.jboss.org/browse/DROOLS-1477
>             Project: Drools
>          Issue Type: Feature Request
>          Components: dmn engine
>            Reporter: Alexandros Koufoudakis
>            Assignee: Alexandros Koufoudakis
>
> To use extension elements inside inputData elements in order to provide “external” information: GEO location, time and location tracking of a decision making (when and were specific decision was taken). This is the primary scope of the use.
> In case extension element represents a complex type customer prefers to get back an instance of the complex type, assuming the complex type is defined as a class by the development team on the customer side. However, the customer also understands that it can be more complex and considers the possibility to get the complex type as an XML snippet. The parsing and turning the XML snippet into the complex type, defined by the customer.
> The possibility of getting the list of extension elements is expected from other DMN elements, which extend from DMNElement, according to the DMN specification and meta model diagram by OMG. In other words, the usage of extension elements is not limited to be a part of input data elements only.
> The client is not expecting “authoring” of the extension elements.
> Since extension elements are a part of DMN specification, this is an attempt to make it possible for drools to register custom extension elements in a generic way.



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