Re: Use of explain() vs search()

[Minh Kama Yie]

Hi all,
Sorry I should clarify my last point.
The search() would return no hits, but the explain() using the 
apparently invalid docId returns a value greater than 0.

For what it's worth it's performing a PhraseQuery.
Thanks in advance,
Minh
Minh Kama Yie wrote:
Hi all,
I was wondering if anyone could tell me what the expected behaviour is 
for calling an explain() without calling a search() first on a 
particular query. Would it effectively do a search and then I can 
examine the Explanation in order to check whether it matches?

I'm currently looking at some existing code to this effect:
Explanation  exp = searcher.explain(myQuery, docId)
// Where docId was _not_ returned by a search on myQuery
if (exp.getValue() > 0.0f)
{
   // Assuming document for docId matched query.
}
Is the assumption wrong?
I ask because the result of this code is inconsistent with
Hits h = searcher.search(myQuery);  // there are not hits returned.
Thanks in advance,
Minh

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