Package org.apache.lucene.search

Class TermAutomatonQuery.TermAutomatonWeight

    • Constructor Detail

      • TermAutomatonWeight

        public TermAutomatonWeight​(Automaton automaton,
                           IndexSearcher searcher,
                           java.util.Map<java.lang.Integer,​TermStates> termStates,
                           float boost)
                    throws java.io.IOException
        Throws:
        java.io.IOException

    • Method Detail

      • extractTerms

        public void extractTerms​(java.util.Set<Term> terms)
        Description copied from class: Weight
        Expert: adds all terms occurring in this query to the terms set. If the Weight was created with needsScores == true then this method will only extract terms which are used for scoring, otherwise it will extract all terms which are used for matching.
        Specified by:
        extractTerms in class Weight

      • toString

        public java.lang.String toString()
        Overrides:
        toString in class java.lang.Object

      • scorer

        public Scorer scorer​(LeafReaderContext context)
              throws java.io.IOException
        Description copied from class: Weight
        Returns a Scorer which can iterate in order over all matching documents and assign them a score.

        NOTE: null can be returned if no documents will be scored by this query.

        NOTE: The returned Scorer does not have LeafReader.getLiveDocs() applied, they need to be checked on top.

        Specified by:
        scorer in class Weight
        Parameters:
        context - the LeafReaderContext for which to return the Scorer.
        Returns:
        a Scorer which scores documents in/out-of order.
        Throws:
        java.io.IOException - if there is a low-level I/O error

      • isCacheable

        public boolean isCacheable​(LeafReaderContext ctx)
        Returns:
        true if the object can be cached against a given leaf

      • explain

        public Explanation explain​(LeafReaderContext context,
                           int doc)
                    throws java.io.IOException
        Description copied from class: Weight
        An explanation of the score computation for the named document.
        Specified by:
        explain in class Weight
        Parameters:
        context - the readers context to create the Explanation for.
        doc - the document's id relative to the given context's reader
        Returns:
        an Explanation for the score
        Throws:
        java.io.IOException - if an IOException occurs