Package org.apache.lucene.search.spans

Class SpanNotQuery

java.lang.Object
org.apache.lucene.search.Query
org.apache.lucene.search.spans.SpanQuery
org.apache.lucene.search.spans.SpanNotQuery
All Implemented Interfaces:
Cloneable
public class SpanNotQuery extends SpanQuery implements Cloneable
Removes matches which overlap with another SpanQuery or within a x tokens before or y tokens after another SpanQuery.

  • Constructor Details

    • SpanNotQuery

      public SpanNotQuery(SpanQuery include, SpanQuery exclude)
      Construct a SpanNotQuery matching spans from include which have no overlap with spans from exclude.

    • SpanNotQuery

      public SpanNotQuery(SpanQuery include, SpanQuery exclude, int dist)
      Construct a SpanNotQuery matching spans from include which have no overlap with spans from exclude within dist tokens of include.

    • SpanNotQuery

      public SpanNotQuery(SpanQuery include, SpanQuery exclude, int pre, int post)
      Construct a SpanNotQuery matching spans from include which have no overlap with spans from exclude within pre tokens before or post tokens of include.

  • Method Details

    • getInclude

      public SpanQuery getInclude()
      Return the SpanQuery whose matches are filtered.

    • getExclude

      public SpanQuery getExclude()
      Return the SpanQuery whose matches must not overlap those returned.

    • getField

      public String getField()
      Description copied from class: SpanQuery
      Returns the name of the field matched by this query.

      Note that this may return null if the query matches no terms.

      Specified by:
      getField in class SpanQuery

    • extractTerms

      public void extractTerms(Set<Term> terms)
      Description copied from class: Query
      Expert: adds all terms occurring in this query to the terms set. Only works if this query is in its rewritten form.
      Overrides:
      extractTerms in class Query

    • toString

      public String toString(String field)
      Description copied from class: Query
      Prints a query to a string, with field assumed to be the default field and omitted.
      Specified by:
      toString in class Query

    • clone

      public SpanNotQuery clone()
      Description copied from class: Query
      Returns a clone of this query.
      Overrides:
      clone in class Query

    • getSpans

      public Spans getSpans(AtomicReaderContext context, Bits acceptDocs, Map<Term,TermContext> termContexts) throws IOException
      Description copied from class: SpanQuery
      Expert: Returns the matches for this query in an index. Used internally to search for spans.
      Specified by:
      getSpans in class SpanQuery
      Throws:
      IOException

    • rewrite

      public Query rewrite(IndexReader reader) throws IOException
      Description copied from class: Query
      Expert: called to re-write queries into primitive queries. For example, a PrefixQuery will be rewritten into a BooleanQuery that consists of TermQuerys.
      Overrides:
      rewrite in class Query
      Throws:
      IOException

    • equals

      public boolean equals(Object o)
      Returns true iff o is equal to this.
      Overrides:
      equals in class Query

    • hashCode

      public int hashCode()
      Overrides:
      hashCode in class Query