[JENA-782] Provide configurability of TDB in database setup

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: Jena 2.12.0
• Fix Version/s: Jena 3.0.0
• Component/s: TDB
• Assignee: Andy Seaborne
• Reporter: Andy Seaborne
• Created: 09/Sep/14 11:20
• Updated: 29/Jun/15 17:42
• Resolved: 29/Jun/15 17:42

Description

Creating TDB databases and attaching to existsing ones is quite fixed currently. Any internal paramaters are quite difficult to manipulate and they are globals.

Configurability of TDB databases has two dimensions:

1. Initial setup (e.g. block size)
2. Per JVM (e.g. cache sizes).

(The file mode is actually a per JVM feature but should probably be regarded as an initial setup feature only.)

With configurability, TDB and Fuseki could be scaled down for small databases and for many small databases in one JVM.