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Query Processing | |
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Relevancy Ranking | |
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Support | |
- Lextek Products
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Onix Text Retrieval Engine | |
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Lextek Document Profiler & Categorizer | |
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Brevity Document Summarizer | |
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RouteX Routing Engine | |
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Language Identifier | |
ixVectorNextHit
Name
ixVectorNextHit
Synopsis
void ixVectorNextHit( OnixQueryVectorT Vector, RecordNumT *RecordNum, RecordNumT *WordNum, RecordNumT *Count, FloatT *Weight, StatusCodeT *Status)
Arguments
Vector: A vector which has been returned from a function such as ixProcessQuery.
RecordNum: A pointer to a value of type RecordNumT. This is where the record number of the current hit is returned.
WordNum: A pointer to a value of type WordNumT. This is where the word number of the current hit is returned.
Count: A pointer to a value of type RecordNumT. This is reserved for future use.
Weight: A pointer to a floating point value of type FloatT. This is the final weight of the record which was used when ranking. If you did not do a ranked search, the value put into Weight can simply be ignored.
Status: A pointer to a value of type StatusCodeT representing any error conditions.
Returns
Nothing.
If an error occurred, Status will be set to the error number. When you are at the end of the query vector, Status will be set to EndOfHitList.
Description
ixVectorNextHit is used to find out what the next hit is in the query vector. It returns both the record number and the word number of the current hit. If you are using a record level index, you will not need to pay attention to the word number. Generally, when walking through the query vector (or hit list) viewing all of the hits, ixVectorNextHit is only called after a call to ixVectorCurrentHit. (When called with a new vector ixVectorCurrentHit gets the first hit in the vector and ixVectorNextHit is used to get the rest.)
See Also
Queries, Manual Queries
ixVectorCurrentHit, ixVectorPreviousHit, ixVectorRewind