8 apr 2006 kl. 19.04 skrev Erick Erickson:
I have to disagree.
Optimization where it really doesn't count is, in my experience, bad.
Period.
My intent was not to ephasise on optimization. The waste of
clockticks is just a side effect from what I consider bad design.
WildcardQuery and TermQuery do diffrent things. If I want to
encapsulate the functions of both in one class I write a factory.
class TermOrWildcardQuery implements Query {
private Query factory(Term t) {
if (t.termText.endsWith("*")) return new WildcardQuery(t); else
return new TermQuery(t);
}
}
I have never used such a factory, but my guess is that
programmatically I would always know If I wanted to use a wildcard or
not. So only when writing a primitive query parser for human entered
text could I see the use for such a thing. Perhaps then it is then
better to write a real parser/lexer using Antlr or JavaCC?
---------------------------------------------------------------------
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]
