[dna-issues] [JBoss JIRA] Commented: (DNA-40) Persistant storage for information not stored in other repository sources

Wed Nov 26 13:57:36 EST 2008

    [ https://jira.jboss.org/jira/browse/DNA-40?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12439978#action_12439978 ] 

Randall Hauch commented on DNA-40:
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Related to deleting a subgraph, per Section 8.3.7.4 of the JSR-170 spec: "When a node is removed, a NODE_REMOVED event must be generated for the node on which the remove was called. Additionally, an implementation should also generate a NODE_REMOVE or PROPERTY_ (as appropriate) for each item in the removed subtree."

This means that the "mark" portion of the deletion process will probably have to walk the deleted structure anyway.  This means that the "sweep" could also be performed during the delete request, but may actually be a pretty straightforward series of DELETE SQL commands.

> Persistant storage for information not stored in other repository sources
> -------------------------------------------------------------------------
>
>                 Key: DNA-40
>                 URL: https://jira.jboss.org/jira/browse/DNA-40
>             Project: DNA
>          Issue Type: Feature Request
>          Components: Connectors
>            Reporter: Randall Hauch
>            Assignee: Randall Hauch
>             Fix For: 0.4
>
>
> Create a federation connector that is able to manage information in a relational database using a DNA-defined schema.  This would enable the persistant storage of information that isn't being managed by other connectors.
> Requirements include efficiently storing and accessing large numbers of nodes, large property values (e.g., Binary values), and large numbers of children on nodes.  

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