You have a bunch of log statements in there, what are they printing out?
Also, IndexSearcher.explain() is your friend for understanding why a
doc matched the way it did.
On Aug 12, 2009, at 3:46 PM, Christian Bongiorno wrote:
I have a situation where I have a series of terms queries as part of a
BooleanQuery.
example:
term: 'sole type' -> leather
BooleanClause.SHOULD_OCCURR
term: 'title' -> 'Men's Golf shoes'
BooleanClause.SHOULD_OCCURR
...
But, some terms are incredibly powerful indicators of match
term: 'band type' -> 'gold'
Normally, I would set this as a field boost in the query. Problem
is, it
isn't producing ANY changes even when I set the boost score absurdly
high. I
have also tried to set the BooleanClause.MUST on my really important
term
and I get no results at all.
I tried a simple TermQuery for that (no clause) and got no results.
Below is
a code snippet. I checked through the recent archives discussing field
boosts and I am pretty confident I am doing it right. So, now I am
presuming
it's a problem with my query.
private Query buildQuery(Map<String, String> CatalogInfo) {
if (CatalogInfo != null && CatalogInfo.size() > 0) {
BooleanQuery booleanQuery = new BooleanQuery();
for (Map.Entry<String, String> attributeValue :
CatalogInfo.entrySet()) {
String attributeName = attributeValue.getKey();
String[] attributeValues;
if
(attributeValue.getValue().indexOf(VALUES_DELIMITER) ==
-1) {
attributeValues = new String[]
{attributeValue.getValue()};
} else {
attributeValues =
attributeValue.getValue().split(VALUES_DELIMITER);
}
for (String attributeValue : attributeValues) {
String escapedValue =
QueryParser.escape(attributeValue).trim();
TermQuery termQuery = new TermQuery(new
Term(attributeName, escapedValue));
Float boostNumber =
_boostMap.get(attributeName); //
this is where 'band type' gets it's boost
if (boostNumber != null) {
LOG.warn("Boost value found: " + boostNumber);
termQuery.setBoost(boostNumber);
}
booleanQuery.add(termQuery,
BooleanClause.Occur.SHOULD);
}
}
LOG.warn("Boolean query: " + booleanQuery.toString());
return booleanQuery;
}
return null;
}
--
Christian Bongiorno
--------------------------
Grant Ingersoll
http://www.lucidimagination.com/
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