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From "Ron Gavlin (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CMIS-818) Navigation services should support Last-Modified/If-Modified-Since Headers
Date Tue, 01 Jul 2014 13:01:26 GMT

    [ https://issues.apache.org/jira/browse/CMIS-818?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14048837#comment-14048837
] 

Ron Gavlin commented on CMIS-818:
---------------------------------

One approach might be to follow the pattern already used by GetContentStream where the service
return type implements the special LastModifiedContentStream interface. For example, a LastModifiedObjectInFolderList
interface would be used in a similar manner for the GetChildren service. Likewise, a LastModifiedObjectInFolderContainerList
interface would be used for GetDescendants with a new ObjectInFolderContainerList that replaces
List<ObjectInFolderContainer>.

A mechanism to check/set headers and status code from my CmisServiceWrapper would also be
sufficient. Thoughts?

> Navigation services should support Last-Modified/If-Modified-Since Headers
> --------------------------------------------------------------------------
>
>                 Key: CMIS-818
>                 URL: https://issues.apache.org/jira/browse/CMIS-818
>             Project: Chemistry
>          Issue Type: Improvement
>          Components: opencmis-server
>    Affects Versions: OpenCMIS 0.11.0
>            Reporter: Ron Gavlin
>
> AtomPub and Browser navigation services including getChildren, getFolderTree, getDescendants,
and potentially the others should support Last-Modified/If-Modified-Since Headers.
> Some repositories have built-in caching mechanisms to track whether a folder tree has
been modified. Since many of the Navigation services often require significant server-side
resources, repositories with these built-in caching mechanisms should be able to leverage
them with OpenCMIS. Currently, the OpenCMIS NavigationService does not provide hooks to implement
such optimizations.



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