Hi Martijn,
thank you for your response.
I created the following issue:
https://issues.apache.org/jira/browse/LUCENE-4082
Christoph
Am 25.05.2012 16:25, schrieb Martijn v Groningen:
Hi Christoph,
You can open an issue for this. I think we can use the child score as
an explanation of why a parent doc is scored the way it is.
Martijn
On 25 May 2012 13:20, Christoph Kaser<lucene_l...@iconparc.de> wrote:
Hello all,
I try to calculate score explanations for a query that contains a
ToParentBlockJoinQuery and get the following exception:
java.lang.UnsupportedOperationException:
org.apache.lucene.search.join.ToParentBlockJoinQuery$BlockJoinWeight cannot
explain match on parent document
at
org.apache.lucene.search.join.ToParentBlockJoinQuery$BlockJoinWeight.explain(ToParentBlockJoinQuery.java:222)
at
org.apache.lucene.search.BooleanQuery$BooleanWeight.explain(BooleanQuery.java:236)
I can understand that the ToParentBlockJoinQuery cannot explain the scores
of this document's children, but would it be possible not to throw an
exception but to simply output the score this document got from its
children? This would allow me to analyze the score obtained from other parts
of the complete query, and if needed, I could still get an explanation on
the childquery itself with a specific child id.
Should I open an issue for this, or is it impossible to output any kind of
explanation (even a dummy explanation) in BlockJoinWeight?
Regards,
Christoph
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