OSAF would like to welcome Bryan Stearns who joins our apps team as Software Design Engineer. He will be working on CPIA and focusing on Chandler’s Detail View for the 0.5 release.

You can see more information on Bryan and the other OSAF staff on our People page.

The transaction model chosen for Chandler’s repository calls for item version merging. In the Chandler 0.4 release, version merging is mostly implemented, with a few notable exceptions.

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As said in an earlier post, ref collections are implemented as a double-linked list of bi-directional item references. Ref collection indexes enhance ref collections by enabling positional access into them.

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The constructor on an Item instance is only invoked the first time the instance is created. It is not invoked as the item is re-instantiated when loaded from the repository.

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In order to support Item Stamping, the data model had to be enhanced to support changing an item’s kind on the fly. Read the rest of this entry »

Item clouds are a way of semantically grouping together items of different kinds not otherwise stored together in a ref collection or otherwise. For example, the constitutive parts of an email in Chandler are items of various kinds such as the headers, the body, the attachments etc… Read the rest of this entry »

As with the rest of Chandler, its repository is a work in progress. This is reflected in the state of the various documents pertaining to it. This post attempts to list the known and maintained sources of repository documentation.

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Ref collections, double-linked lists of bi-directional item references, are backed by a hashtable keyed on the referenced items UUIDs. Ref collections - designed with scalability in mind - are sparsely loaded into memory on an as-needed basis. Read the rest of this entry »

We have opened a search for someone to join the OSAF team as Software Developer for the Services Working Group. This person will own to own the design and implementation of Chandler sharing and publishing. Chandler clients share arbitrary content items that have extensible schemas, with other Chandler clients, by synchronizing items to a WebDAV server collection.

Please see OSAF’s Employment page for details on this and the other positions we have open.

The PyLucene project was announced on June 24th. It started with version 0.5 to illustrate that it was sort of half-way there; half-way to supporting the entire Lucene set of APIs and capabilities.

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