[LUCENE-1592] fix or deprecate TermsEnum.skipTo

• Type: Improvement
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Fix Version/s: 2.9
• Component/s: core/index
• Lucene Fields: New
• Assignee: Uwe Schindler
• Reporter: Michael McCandless
• Created: 09/Apr/09 08:43
• Updated: 28/Aug/22 11:59
• Resolved: 11/Jun/09 12:47

Description

This method is a trap: it looks legitimate but it has hideously poor performance (simple linear scan implemented in the TermsEnum base class since none of the concrete impls override it with a more efficient implementation).

The least we should do for 2.9 is deprecate the method with a strong warning about its performance.

See here for background: http://www.lucidimagination.com/search/document/77dc4f8e893d3cf3/possible_terminfosreader_speedup

And, here for historical context:

http://www.lucidimagination.com/search/document/88f1b95b404ebf16/remove_termenum_skipto_term_target