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20 namespace Mono.Lucene.Net.Search.Payloads
24 /// <summary> An abstract class that defines a way for Payload*Query instances
25 /// to transform the cumulative effects of payload scores for a document.
28 /// <seealso cref="Mono.Lucene.Net.Search.Payloads.PayloadTermQuery"> for more information
31 /// This class and its derivations are experimental and subject to change
36 public abstract class PayloadFunction
39 /// <summary> Calculate the score up to this point for this doc and field</summary>
40 /// <param name="docId">The current doc
42 /// <param name="field">The field
44 /// <param name="start">The start position of the matching Span
46 /// <param name="end">The end position of the matching Span
48 /// <param name="numPayloadsSeen">The number of payloads seen so far
50 /// <param name="currentScore">The current score so far
52 /// <param name="currentPayloadScore">The score for the current payload
54 /// <returns> The new current Score
57 /// <seealso cref="Mono.Lucene.Net.Search.Spans.Spans">
59 public abstract float CurrentScore(int docId, System.String field, int start, int end, int numPayloadsSeen, float currentScore, float currentPayloadScore);
61 /// <summary> Calculate the final score for all the payloads seen so far for this doc/field</summary>
62 /// <param name="docId">The current doc
64 /// <param name="field">The current field
66 /// <param name="numPayloadsSeen">The total number of payloads seen on this document
68 /// <param name="payloadScore">The raw score for those payloads
70 /// <returns> The final score for the payloads
72 public abstract float DocScore(int docId, System.String field, int numPayloadsSeen, float payloadScore);
74 abstract public override int GetHashCode();
76 abstract public override bool Equals(System.Object o);