23 lines
1.2 KiB
Markdown
23 lines
1.2 KiB
Markdown
The index service is a partitioned service that knows which document contains which keywords.
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It is the service that most directly executes a search query. It does this by
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evaluating a low-level query, and then using the index to find the documents
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that match the query, finally ranking the results and picking the best matches.
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## Central Classes
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* [IndexService](src/main/java/nu/marginalia/index/IndexService.java) is the REST entry point that the internal API talks to.
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* [IndexQueryService](src/main/java/nu/marginalia/index/svc/IndexQueryService.java) executes queries.
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* [SearchIndex](src/main/java/nu/marginalia/index/index/SearchIndex.java) owns the state of the index and helps with building a query strategy from parameters.
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* [IndexResultValuator](src/main/java/nu/marginalia/index/results/IndexResultValuator.java) determines the best results.
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## See Also
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The index service relies heavily on the primitives in [features-index](../../features-index):
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* [features-index/index-forward](../../features-index/index-forward/)
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* [features-index/index-reverse](../../features-index/index-reverse/)
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* [features-index/index-query](../../features-index/index-query)
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