Difference between revisions of "Projects/PIM/Akonadi/SearchInfrastructure"

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All about the search infrastructure of Akonadi.
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== Concept ==
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Concept of the Akonadi search infrastructure:
 
Concept of the Akonadi search infrastructure:
  
 
[[File:Akonadi-search-infrastructure 20090723.png]]
 
[[File:Akonadi-search-infrastructure 20090723.png]]
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== Query Language ==
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Options:
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* SPARQL: de-facto standard by now (used by Nepomuk and Tracker), but way too complex for automatic query transformations.
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* XESAM (?)
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== Search Backends ==
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Requirements:
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* fast enough
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* cross-platform
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* persistent/live search with change notifications
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=== Possible Backends ===
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* Nepomuk with Sesame2 or Virtuoso
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* Tracker (?)
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* XESAM (?)
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=== Delegation to Resources ===
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* Requires query transformation
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* Requires management for live searches
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* Requires the ability to report search results (needs protocol extension) [done by now]
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== Virtual Collections ==
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Virtual collections are used to report results, for details see [[Projects/PIM/Akonadi/VirtualCollections]].
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== Nepomuk Feeder Agents ==
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* The delete/add approach removes otherwise added information such as tags when an item is modified.
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* Category to tag conversion uses non-Fast Nepomuk resources.
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[[Category:PIM]] [[Category:Akonadi]]

Latest revision as of 09:11, 17 September 2009

All about the search infrastructure of Akonadi.

Contents

[edit] Concept

Concept of the Akonadi search infrastructure:

Akonadi-search-infrastructure 20090723.png

[edit] Query Language

Options:

  • SPARQL: de-facto standard by now (used by Nepomuk and Tracker), but way too complex for automatic query transformations.
  • XESAM (?)


[edit] Search Backends

Requirements:

  • fast enough
  • cross-platform
  • persistent/live search with change notifications

[edit] Possible Backends

  • Nepomuk with Sesame2 or Virtuoso
  • Tracker (?)
  • XESAM (?)

[edit] Delegation to Resources

  • Requires query transformation
  • Requires management for live searches
  • Requires the ability to report search results (needs protocol extension) [done by now]


[edit] Virtual Collections

Virtual collections are used to report results, for details see Projects/PIM/Akonadi/VirtualCollections.

[edit] Nepomuk Feeder Agents

  • The delete/add approach removes otherwise added information such as tags when an item is modified.
  • Category to tag conversion uses non-Fast Nepomuk resources.

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