[JBoss JIRA] Commented: (DNA-40) Persistant storage for information not stored in other repository sources
by Randall Hauch (JIRA)
[ https://jira.jboss.org/jira/browse/DNA-40?page=com.atlassian.jira.plugin.... ]
Randall Hauch commented on DNA-40:
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Implemented most of the connector behavior (just CopyBranchRequest remains, with a number of minor tasks). Delete now uses an efficient mechanism for finding subgraphs. The searches are stores in the database (in a "temporary" area), but this makes computing the subgraph very efficient (one self-join on the children's table per LEVEL of subgraph, not per node) and helps to keep most of the information out of memory. The same mechanism is used for ReadBranchRequest (and will be used for CopyBranchRequest).
A number of methods also use Hibernate bulk HQL statements, which should be faster. (The subgraph query is just one way in which they're used.)
Note that the "mark and sweep" approach to deleting nodes was abandoned, because the JCR spec requires that repositories generate delete events for every node that is deleted, not just for the top node in the subgraph that was deleted.
> 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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17 years, 4 months
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[JBoss JIRA] Updated: (DNA-40) Create connector to store any content in a relational database
by Randall Hauch (JIRA)
[ https://jira.jboss.org/jira/browse/DNA-40?page=com.atlassian.jira.plugin.... ]
Randall Hauch updated DNA-40:
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Summary: Create connector to store any content in a relational database (was: Persistant storage for information not stored in other repository sources)
Renamed to better reflect the actual need and approach.
> Create connector to store any content in a relational database
> --------------------------------------------------------------
>
> 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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17 years, 4 months
- 1
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