[LUCENE-2674] improve how MTQs interact with the terms dict cache

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 4.0-ALPHA
• Component/s: core/index
• Lucene Fields: New
• Assignee: Michael McCandless
• Reporter: Michael McCandless
• Created: 27/Sep/10 16:06
• Updated: 10/May/13 10:42
• Resolved: 28/Sep/10 16:32

Description

Some small improvements:

• Adds a TermsEnum.cacheCurrentTerm "hint" (codec can make this a no-op)

• Removes the FTE.useTermsCache

• Changes MTQ's TermCollector API to accept the TermsEnum so collectors can eg call .docFreq directly

• Adds expert ctor to TermQuery allowing you to pass in the docFreq