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| <h1 id="Lucene_Net_Search_Payloads" data-uid="Lucene.Net.Search.Payloads" class="text-break">Namespace Lucene.Net.Search.Payloads |
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| <p>The payloads package provides Query mechanisms for finding and using payloads.</p> |
| <p> The following Query implementations are provided: 1. <a class="xref" href="Lucene.Net.Search.Payloads.PayloadTermQuery.html">PayloadTermQuery</a> -- Boost a term's score based on the value of the payload located at that term. 2. <a class="xref" href="Lucene.Net.Search.Payloads.PayloadNearQuery.html">PayloadNearQuery</a> -- A <a class="xref" href="Lucene.Net.Search.Spans.SpanNearQuery.html">SpanNearQuery</a> that factors in the value of the payloads located at each of the positions where the spans occur. </p> |
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| <div class="markdown level0 conceptual"></div> |
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| <h3 id="classes">Classes |
| </h3> |
| <h4><a class="xref" href="Lucene.Net.Search.Payloads.AveragePayloadFunction.html">AveragePayloadFunction</a></h4> |
| <section><p>Calculate the final score as the average score of all payloads seen. |
| <p> |
| Is thread safe and completely reusable.</p> |
| </section> |
| <h4><a class="xref" href="Lucene.Net.Search.Payloads.MaxPayloadFunction.html">MaxPayloadFunction</a></h4> |
| <section><p>Returns the maximum payload score seen, else 1 if there are no payloads on the doc. |
| <p> |
| Is thread safe and completely reusable.</p> |
| </section> |
| <h4><a class="xref" href="Lucene.Net.Search.Payloads.MinPayloadFunction.html">MinPayloadFunction</a></h4> |
| <section><p>Calculates the minimum payload seen</p> |
| </section> |
| <h4><a class="xref" href="Lucene.Net.Search.Payloads.PayloadFunction.html">PayloadFunction</a></h4> |
| <section><p>An abstract class that defines a way for Payload*Query instances to transform |
| the cumulative effects of payload scores for a document. |
| <p> |
| <div class="lucene-block lucene-experimental">This is a Lucene.NET EXPERIMENTAL API, use at your own risk</div><p> this class and its derivations are experimental and subject to |
| change</p> |
| </section> |
| <h4><a class="xref" href="Lucene.Net.Search.Payloads.PayloadNearQuery.html">PayloadNearQuery</a></h4> |
| <section><p>This class is very similar to |
| <a class="xref" href="Lucene.Net.Search.Spans.SpanNearQuery.html">SpanNearQuery</a> except that it factors |
| in the value of the payloads located at each of the positions where the |
| <a class="xref" href="Lucene.Net.Search.Spans.TermSpans.html">TermSpans</a> occurs. |
| <p> |
| NOTE: In order to take advantage of this with the default scoring implementation |
| (<a class="xref" href="Lucene.Net.Search.Similarities.DefaultSimilarity.html">DefaultSimilarity</a>), you must override <a class="xref" href="Lucene.Net.Search.Similarities.DefaultSimilarity.html#Lucene_Net_Search_Similarities_DefaultSimilarity_ScorePayload_System_Int32_System_Int32_System_Int32_Lucene_Net_Util_BytesRef_">ScorePayload(Int32, Int32, Int32, BytesRef)</a>, |
| which returns 1 by default. |
| <p> |
| Payload scores are aggregated using a pluggable <a class="xref" href="Lucene.Net.Search.Payloads.PayloadFunction.html">PayloadFunction</a>.</p> |
| </section> |
| <h4><a class="xref" href="Lucene.Net.Search.Payloads.PayloadNearQuery.PayloadNearSpanScorer.html">PayloadNearQuery.PayloadNearSpanScorer</a></h4> |
| <section></section> |
| <h4><a class="xref" href="Lucene.Net.Search.Payloads.PayloadNearQuery.PayloadNearSpanWeight.html">PayloadNearQuery.PayloadNearSpanWeight</a></h4> |
| <section></section> |
| <h4><a class="xref" href="Lucene.Net.Search.Payloads.PayloadSpanUtil.html">PayloadSpanUtil</a></h4> |
| <section><p>Experimental class to get set of payloads for most standard Lucene queries. |
| Operates like Highlighter - <a class="xref" href="Lucene.Net.Index.IndexReader.html">IndexReader</a> should only contain doc of interest, |
| best to use MemoryIndex. |
| <p> |
| <div class="lucene-block lucene-experimental">This is a Lucene.NET EXPERIMENTAL API, use at your own risk</div></section> |
| <h4><a class="xref" href="Lucene.Net.Search.Payloads.PayloadTermQuery.html">PayloadTermQuery</a></h4> |
| <section><p>This class is very similar to |
| <a class="xref" href="Lucene.Net.Search.Spans.SpanTermQuery.html">SpanTermQuery</a> except that it factors |
| in the value of the payload located at each of the positions where the |
| <a class="xref" href="Lucene.Net.Index.Term.html">Term</a> occurs. |
| <p> |
| NOTE: In order to take advantage of this with the default scoring implementation |
| (<a class="xref" href="Lucene.Net.Search.Similarities.DefaultSimilarity.html">DefaultSimilarity</a>), you must override <a class="xref" href="Lucene.Net.Search.Similarities.DefaultSimilarity.html#Lucene_Net_Search_Similarities_DefaultSimilarity_ScorePayload_System_Int32_System_Int32_System_Int32_Lucene_Net_Util_BytesRef_">ScorePayload(Int32, Int32, Int32, BytesRef)</a>, |
| which returns 1 by default. |
| <p> |
| Payload scores are aggregated using a pluggable <a class="xref" href="Lucene.Net.Search.Payloads.PayloadFunction.html">PayloadFunction</a>. </p> |
| </section> |
| <h4><a class="xref" href="Lucene.Net.Search.Payloads.PayloadTermQuery.PayloadTermWeight.html">PayloadTermQuery.PayloadTermWeight</a></h4> |
| <section></section> |
| <h4><a class="xref" href="Lucene.Net.Search.Payloads.PayloadTermQuery.PayloadTermWeight.PayloadTermSpanScorer.html">PayloadTermQuery.PayloadTermWeight.PayloadTermSpanScorer</a></h4> |
| <section></section> |
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