[jbosstools-issues] [JBoss JIRA] Commented: (JBIDE-7574) Delete sub mappings on CollectionMapping addition

[Tom Fennelly (JIRA)]

    [ https://jira.jboss.org/browse/JBIDE-7574?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12567583#comment-12567583 ] 

Tom Fennelly commented on JBIDE-7574:
-------------------------------------

Take a look at the following screencast: http://www.screencast.com/t/guIQ56XW2

One thing I didn't think of saying in the screencast was... when you're trying to reproduce this yourself, take a look at the source at each stage when you add connections etc and see the effects on the generated template.

> Delete sub mappings on CollectionMapping addition
> -------------------------------------------------
>
>                 Key: JBIDE-7574
>                 URL: https://jira.jboss.org/browse/JBIDE-7574
>             Project: Tools (JBoss Tools)
>          Issue Type: Feature Request
>          Components: smooks
>            Reporter: Tom Fennelly
>            Assignee: Tom Fennelly
>             Fix For: 3.2.0.Beta2
>
>
> For sources that don't have a schema (e.g. sample xml source), the editor has to allow the user perform mappings that it can normally block the user from doing in situations where there is a schema (e.g. XSD source) e.g. based on schema rules, it can block mapping to sub elements before a parent collection mapping is made etc.
> For these sources that don't have a schema, the user could map into a sub element on the target and then (later), perform a collection based mapping onto one of the parent elements.  This CollectionMapping can invalidate the earlier mappings.  In such cases, the earlier mappings need to be deleted and the user needs to remap.  
> We could get "fancy" in future and actually fix the earlier mappings to make them part of the new Collection, but deleting the earlier mappings is easier for now.

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