[dna-issues] [JBoss JIRA] Resolved: (DNA-376) Add request to change the order of a child node (or nodes) relative to the other children

[Brian Carothers (JIRA)]

     [ https://jira.jboss.org/jira/browse/DNA-376?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Brian Carothers resolved DNA-376.
---------------------------------

    Fix Version/s: 0.5
                       (was: 0.6)
       Resolution: Done
         Assignee: Brian Carothers  (was: Randall Hauch)


Resolved defect by applying DNA-376_final.patch which:

- Adds "before" property to MoveBranchRequest which can be used in lieu of the "into" property.  If the before is populated, the node should moved into the parent of the "before" location and located immediately before the child node with the "before" location.  Added test case to WriteableConnectorTest to test this behavior.
- Modified writable connectors to support "before" property on MoveBranchRequest and no longer require that "into" property is not null.
- Added support for "before" preposition on Graph and Graph.Batch for move operation.
- Modified JCR layer to support ordering of child nodes with AbstractJcrNode.orderBefore by adding a method to SessionCache.NodeEditor and adding comparable operations to ImmutableChildren and ChangedChildren
- Uncommented relevant tests in JcrTckTest


> Add request to change the order of a child node (or nodes) relative to the other children
> -----------------------------------------------------------------------------------------
>
>                 Key: DNA-376
>                 URL: https://jira.jboss.org/jira/browse/DNA-376
>             Project: DNA
>          Issue Type: Feature Request
>          Components: API, Graph
>    Affects Versions: 0.3
>            Reporter: Randall Hauch
>            Assignee: Brian Carothers
>            Priority: Blocker
>             Fix For: 0.5
>
>         Attachments: DNA-376.patch, DNA-376_final.patch, DNA-376_for_commit.patch
>
>
> The current DNA Graph model does support ordered children, and while rename can be used to change the order of same-name-siblings, there currently is no way to change the order of the child nodes.  This is required to fully implement the JCR API.
> JCR handles this functionality by provided a method that essentially changes the position of a single child node.  The "Node.orderBefore(String childNameToBeMoved, String nameOfChildAtPosition)" can be used by calling on the parent node and supplying the name (with SNS index if needed) of the child to be moved and the name of the child before which the other child is to be moved.
> This same model can be used for the graph request.  It also would allow adding in the future another optional request that would contain multiple reorders, and that could be implemented in RequestProcessor to break into multiple ReorderChildRequest instances.
> The existing (writable) connectors will all be affected, since this will be a new mandatory request.

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