Uwe Schindler wrote:
MultiTermQuery has in its protected getEnum() returning FilteredTermEnum.
For TrieRange, the return should be changed to TermEnum, it is not needed to
have a FilteredTermEnum (FilteredTermEnum is only an implementation, the
method should return an abstract TermEnum). If this is fixed, I can write a
NumericRangeTermEnum extends TermEnum, that enumerates the terms for all
sub-ranges (with FilteredTermEnum this is not possible), so it must be a
"own" extension. FilteredTermEnum could be used if it would be possible to
access the inner enum and term members (currently private), but this would
be a completely "unclean hack".
Have you considered how to fix this? Fuzzy is what expects the
FilteredTermEnum - it could just be changed to cast though, but we still
have a back compat issue changing that method. I think we'd have to
deprecate and add another call? TrieRange could throw USOE with the old
enum?
I think thats worth fixing in either case.
--
- Mark
http://www.lucidimagination.com
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