Class SpanOrQuery


  • public final class SpanOrQuery
    extends SpanQuery
    Matches the union of its clauses.
    • Field Summary

      Fields 
      Modifier and Type Field Description
      private java.util.List<SpanQuery> clauses  
      private java.lang.String field  
    • Constructor Summary

      Constructors 
      Constructor Description
      SpanOrQuery​(SpanQuery... clauses)
      Construct a SpanOrQuery merging the provided clauses.
    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      private void addClause​(SpanQuery clause)
      Adds a clause to this query
      SpanWeight createWeight​(IndexSearcher searcher, ScoreMode scoreMode, float boost)
      Expert: Constructs an appropriate Weight implementation for this query.
      boolean equals​(java.lang.Object other)
      Override and implement query instance equivalence properly in a subclass.
      SpanQuery[] getClauses()
      Return the clauses whose spans are matched.
      java.lang.String getField()
      Returns the name of the field matched by this query.
      int hashCode()
      Override and implement query hash code properly in a subclass.
      Query rewrite​(IndexReader reader)
      Expert: called to re-write queries into primitive queries.
      java.lang.String toString​(java.lang.String field)
      Prints a query to a string, with field assumed to be the default field and omitted.
      void visit​(QueryVisitor visitor)
      Recurse through the query tree, visiting any child queries
      • Methods inherited from class java.lang.Object

        clone, finalize, getClass, notify, notifyAll, wait, wait, wait
    • Field Detail

      • clauses

        private java.util.List<SpanQuery> clauses
      • field

        private java.lang.String field
    • Constructor Detail

      • SpanOrQuery

        public SpanOrQuery​(SpanQuery... clauses)
        Construct a SpanOrQuery merging the provided clauses. All clauses must have the same field.
    • Method Detail

      • addClause

        private final void addClause​(SpanQuery clause)
        Adds a clause to this query
      • getClauses

        public SpanQuery[] getClauses()
        Return the clauses whose spans are matched.
      • getField

        public java.lang.String getField()
        Description copied from class: SpanQuery
        Returns the name of the field matched by this query.
        Specified by:
        getField in class SpanQuery
      • rewrite

        public Query rewrite​(IndexReader reader)
                      throws java.io.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:
        java.io.IOException
      • visit

        public void visit​(QueryVisitor visitor)
        Description copied from class: Query
        Recurse through the query tree, visiting any child queries
        Overrides:
        visit in class Query
        Parameters:
        visitor - a QueryVisitor to be called by each query in the tree
      • toString

        public java.lang.String toString​(java.lang.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
      • equals

        public boolean equals​(java.lang.Object other)
        Description copied from class: Query
        Override and implement query instance equivalence properly in a subclass. This is required so that QueryCache works properly. Typically a query will be equal to another only if it's an instance of the same class and its document-filtering properties are identical that other instance. Utility methods are provided for certain repetitive code.
        Specified by:
        equals in class Query
        See Also:
        Query.sameClassAs(Object), Query.classHash()
      • hashCode

        public int hashCode()
        Description copied from class: Query
        Override and implement query hash code properly in a subclass. This is required so that QueryCache works properly.
        Specified by:
        hashCode in class Query
        See Also:
        Query.equals(Object)
      • createWeight

        public SpanWeight createWeight​(IndexSearcher searcher,
                                       ScoreMode scoreMode,
                                       float boost)
                                throws java.io.IOException
        Description copied from class: Query
        Expert: Constructs an appropriate Weight implementation for this query.

        Only implemented by primitive queries, which re-write to themselves.

        Specified by:
        createWeight in class SpanQuery
        scoreMode - How the produced scorers will be consumed.
        boost - The boost that is propagated by the parent queries.
        Throws:
        java.io.IOException