Package nl.inl.blacklab.search.lucene

Our own extensions to Lucene, used by BlackLab.

See: Description

Interface Summary

Interface	Description
SpansInBuckets	Interface to retrieve whole sequences of certain matches (in "buckets") instead of individual matches like with Spans.
SpansInBuckets.BucketSpanComparator

Class Summary

Class	Description
BLSpanMultiTermQueryWrapper<Q extends org.apache.lucene.search.MultiTermQuery>	Subclasses SpanMultiTermQueryWrapper so it correctly produces BLSpanOrQuery or BLSpanTermQuery.
BLSpanOrQuery	Matches the union of its clauses.
BLSpanQuery	A required interface for a BlackLab SpanQuery.
BLSpans	Will be the base class for all our own Spans classes.
BLSpansWrapper	Wrap a "simple" Spans object in a BLSpans object.
BLSpanTermQuery	BL-specific subclass of SpanTermQuery that changes what getField() returns (the annotated field name instead of the full Lucene field name) in order to be able to combine queries in different Lucene fields using AND and OR.
BLSpanWeight	Base class for our SpanWeight classes.
DocIntFieldGetter	Used to get an integer field value for a document.
HitQueryContext	Provides per-hit query-wide context, such as captured groups.
SpanFuzzyQuery	A fuzzy (approximate) query with spans.
SpanQueryAnd	Combines SpanQueries using AND.
SpanQueryAndNot	A SpanQuery for an AND NOT query.
SpanQueryAnyToken	A SpanQuery matching a number of tokens without any restrictions.
SpanQueryCaptureGroup	Captures its clause as a captured group.
SpanQueryConstrained
SpanQueryEdge	Returns either the left edge or right edge of the specified query.
SpanQueryExpansion	Expands the source spans to the left and right by the given ranges.
SpanQueryFiltered	Filters a SpanQuery.
SpanQueryFilterNGrams	Return n-grams contained in the from the source spans hits.
SpanQueryFiSeq	Find hits that match the specified NFA, starting from the specified anchor query (either the start of end of those hits, with a possible offset added), in the specified direction.
SpanQueryNoHits	A query matching nothing.
SpanQueryNot	Returns all tokens that do not occur in the matches of the specified query.
SpanQueryPositionFilter	Filters hits from a producer query based on the hit positions of a filter query.
SpanQueryRepetition	Finds repeated consecutive hits.
SpanQuerySequence	Combines spans, keeping only combinations of hits that occur one after the other.
SpanQueryTags	Returns spans corresponding to a certain element (tag) type.
SpansConstrained

Enum Summary

Enum	Description
SpanQueryExpansion.Direction
SpanQueryPositionFilter.Operation	The different positional operations

Package nl.inl.blacklab.search.lucene Description

Our own extensions to Lucene, used by BlackLab.