[UIMA-1230] When parsing an aggregate descriptor, should parse a shared type system file only once

• Type: Improvement
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 2.2.2
• Fix Version/s: 2.3
• Component/s: Core Java Framework
• Assignee: Adam P. Lally
• Reporter: Adam P. Lally
• Created: 20/Nov/08 19:41
• Updated: 20/Nov/08 19:47
• Resolved: 20/Nov/08 19:47

Description

Frequently an aggregate will contain several primitives that all import a single shared type system descriptor. Currently, the shared type system descriptor will be separately parsed for each of the primitives, and each primitive descriptor will contain a separate copy of the TypeSystemDescription object.

When there are a large number of primitives and a large number of types in the shared type system, this parsing takes a long time and the resulting TypeSystemDescription objects consume a lot of memory.

Instead, we could keep a cache of imports that have already been parsed, and we can reuse the same TypeSystemDescription object within each of the primitive descriptors rather than having a separate copy.