[JENA-1559] Avoid unnecessary prefix loading in GraphPrefixesProjection

• Type: Task
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: Jena 3.7.0
• Fix Version/s: Jena 3.8.0
• Assignee: Andy Seaborne
• Reporter: Andy Seaborne
• Created: 09/Jun/18 10:55
• Updated: 29/Jun/18 10:13
• Resolved: 12/Jun/18 12:00

Description

GraphPrefixesProjection loads all prefixes from the database (JENA-81). It was done that way because PrefixMappingImpl has internal datastructures that are not passing through lookup misses.

Load as needed and rework the way the prefix implementation to cleanly separate algorithms from storage.

Leave PrefixMappingImpl untouched - its name and details are too well-known.

 

 

Issue Links

• links to: GitHub Pull Request #431