[dna-issues] [JBoss JIRA] Commented: (DNA-83) Federate content from JBoss Cache instance(s)

Mon Aug 11 16:31:50 EDT 2008

    [ https://jira.jboss.org/jira/browse/DNA-83?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12424498#action_12424498 ] 

Randall Hauch commented on DNA-83:
----------------------------------

Addressed the need to support same-name siblings, which is more difficult to do with JBoss Cache, since children are not kept in any order.  The code now maintains for any node in JBoss Cache a Path.Segment[] in a property, which stores it's ordered list of children.  This is the most memory-efficient way to do this (that I could think of), since the actual Path.Segment objects should already be stored in the Fqn for each node, and no indexes need be maintained.  So the only overhead is that associated with the array (roughly one reference per child).  (Another option considered were wrapping the Path.Segment implementation with another implementation of Path.Segment that also stored the index, but this required a reference plus an integer for each child.)

Found a bug in the AbstractCommandExecutor's handling of GetNodeCommand, which resulted in the GetPropertiesCommand and GetChildrenCommand being executed twice.

> Federate content from JBoss Cache instance(s)
> ---------------------------------------------
>
>                 Key: DNA-83
>                 URL: https://jira.jboss.org/jira/browse/DNA-83
>             Project: DNA
>          Issue Type: Feature Request
>          Components: Connectors
>            Reporter: Randall Hauch
>            Assignee: Randall Hauch
>             Fix For: 0.2
>
>
> Create a federation connector that provides access to information stored in a JBoss Cache instance.  The content (nodes with data) would be mapped directly to nodes with properties.

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