Answering my own question:
in order to account for payloads, PayloadTermQuery should be used instead
of TermQuery:
PayloadTermQuery payloadTermQuery = new PayloadTermQuery(new Term("body",
"dogs"), new MaxPayloadFunction());
Then in the query explanation we get:
-----------
Results for body:dogs of type:
org.apache.lucene.search.payloads.PayloadTermQuery
Doc: doc=0 score=3.125 shardIndex=-1
payloadValue = 10.0
Explain: 3.125 = (MATCH) btq, product of:
0.3125 = weight(body:dogs in 0) [PayloadSimilarity], result of:
0.3125 = fieldWeight in 0, product of:
1.0 = tf(freq=1.0), with freq of:
1.0 = phraseFreq=1.0
1.0 = idf(docFreq=3, maxDocs=10)
0.3125 = fieldNorm(doc=0)
10.0 = MaxPayloadFunction.docScore()
Doc: doc=9 score=3.125 shardIndex=-1
payloadValue = 10.0
Explain: 3.125 = (MATCH) btq, product of:
0.3125 = weight(body:dogs in 9) [PayloadSimilarity], result of:
0.3125 = fieldWeight in 9, product of:
1.0 = tf(freq=1.0), with freq of:
1.0 = phraseFreq=1.0
1.0 = idf(docFreq=3, maxDocs=10)
0.3125 = fieldNorm(doc=9)
10.0 = MaxPayloadFunction.docScore()
Doc: doc=1 score=0.3125 shardIndex=-1
Explain: 0.3125 = (MATCH) btq, product of:
0.3125 = weight(body:dogs in 1) [PayloadSimilarity], result of:
0.3125 = fieldWeight in 1, product of:
1.0 = tf(freq=1.0), with freq of:
1.0 = phraseFreq=1.0
1.0 = idf(docFreq=3, maxDocs=10)
0.3125 = fieldNorm(doc=1)
1.0 = MaxPayloadFunction.docScore()
On Fri, Apr 24, 2015 at 2:50 PM, Dmitry Kan <solrexp...@gmail.com> wrote:
> Hi,
>
>
> Using the approach here
> http://lucidworks.com/blog/getting-started-with-payloads/ I have
> implemented my own PayloadSimilarity class. When debugging the code I have
> noticed, that the scorePayload method is never called. What could be wrong?
>
>
> [code]
>
> class PayloadSimilarity extends DefaultSimilarity {
> @Override
> public float scorePayload(int doc, int start, int end, BytesRef payload) {
> float payloadValue = PayloadHelper.decodeFloat(payload.bytes);
> System.out.println("payloadValue = " + payloadValue);
> return payloadValue;
> }
> }
>
> [/code]
>
>
> Here is how the similarity is injected during indexing:
>
> [code]
>
> PayloadEncoder encoder = new FloatEncoder();
> IndexWriterConfig indexWriterConfig = new
> IndexWriterConfig(Version.LUCENE_4_10_4, new PayloadAnalyzer(encoder));
> payloadSimilarity = new PayloadSimilarity();
> indexWriterConfig.setSimilarity(payloadSimilarity);
> IndexWriter writer = new IndexWriter(dir, indexWriterConfig);
>
> [/code]
>
>
> and during searching:
>
> [code]
>
> IndexReader indexReader = DirectoryReader.open(dir);
> IndexSearcher searcher = new IndexSearcher(indexReader);
> searcher.setSimilarity(payloadSimilarity);
>
> TermQuery termQuery = new TermQuery(new Term("body", "dogs"));
> termQuery.setBoost(1.1f);
> TopDocs topDocs = searcher.search(termQuery, 10);
> printResults(searcher, termQuery, topDocs);
>
>
> [/code]
>
> --
> Dmitry Kan
> Luke Toolbox: http://github.com/DmitryKey/luke
> Blog: http://dmitrykan.blogspot.com
> Twitter: http://twitter.com/dmitrykan
> SemanticAnalyzer: www.semanticanalyzer.info
>
>
--
Dmitry Kan
Luke Toolbox: http://github.com/DmitryKey/luke
Blog: http://dmitrykan.blogspot.com
Twitter: http://twitter.com/dmitrykan
SemanticAnalyzer: www.semanticanalyzer.info
