The RangeQuery type exposes the following members.

Constructors

  NameDescription
Public methodRangeQuery(Term, Term, Boolean)
Constructs a query selecting all terms greater than
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lowerTerm
but less than
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upperTerm
. There must be at least one term and either term may be null, in which case there is no bound on that side, but if there are two terms, both terms must be for the same field.
Public methodRangeQuery(Term, Term, Boolean, CompareInfo)
Constructs a query selecting all terms greater than
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lowerTerm
but less than
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upperTerm
. There must be at least one term and either term may be null, in which case there is no bound on that side, but if there are two terms, both terms must be for the same field.

If

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collator
is not null, it will be used to decide whether index terms are within the given range, rather than using the Unicode code point order in which index terms are stored.

WARNING: Using this constructor and supplying a non-null value in the

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collator
parameter will cause every single index Term in the Field referenced by lowerTerm and/or upperTerm to be examined. Depending on the number of index Terms in this Field, the operation could be very slow.

Methods

  NameDescription
Public methodClone
Returns a clone of this query.
(Inherited from Query.)
Public methodCombine
Expert: called when re-writing queries under MultiSearcher. Create a single query suitable for use by all subsearchers (in 1-1 correspondence with queries). This is an optimization of the OR of all queries. We handle the common optimization cases of equal queries and overlapping clauses of boolean OR queries (as generated by MultiTermQuery.rewrite()). Be careful overriding this method as queries[0] determines which method will be called and is not necessarily of the same type as the other queries.
(Inherited from Query.)
Public methodCreateWeight
Expert: Constructs an appropriate Weight implementation for this query.

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

(Inherited from Query.)
Public methodEquals
Returns true iff
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o
is equal to this.
(Overrides Query..::..Equals(Object).)
Public methodExtractTerms
Expert: adds all terms occuring in this query to the terms set. Only works if this query is in its {@link #rewrite rewritten} form.
(Inherited from Query.)
Protected methodFinalize
Allows an Object to attempt to free resources and perform other cleanup operations before the Object is reclaimed by garbage collection.
(Inherited from Object.)
Public methodGetBoost
Gets the boost for this clause. Documents matching this clause will (in addition to the normal weightings) have their score multiplied by
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b
. The boost is 1.0 by default.
(Inherited from Query.)
Public methodGetCollator
Returns the collator used to determine range inclusion, if any.
Public methodGetField
Returns the field name for this query
Public methodGetHashCode
Returns a hash code value for this object.
(Overrides Query..::..GetHashCode()()()().)
Public methodGetLowerTerm
Returns the lower term of this range query.
Public methodGetSimilarity
Expert: Returns the Similarity implementation to be used for this query. Subclasses may override this method to specify their own Similarity implementation, perhaps one that delegates through that of the Searcher. By default the Searcher's Similarity implementation is returned.
(Inherited from Query.)
Public methodGetType
Gets the Type of the current instance.
(Inherited from Object.)
Public methodGetUpperTerm
Returns the upper term of this range query.
Public methodIsInclusive
Returns
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true
if the range query is inclusive
Protected methodMemberwiseClone
Creates a shallow copy of the current Object.
(Inherited from Object.)
Public methodRewrite (Overrides Query..::..Rewrite(IndexReader).)
Public methodSetBoost (Overrides Query..::..SetBoost(Single).)
Public methodToString()()()()
Prints a query to a string.
(Inherited from Query.)
Public methodToString(String)
Prints a user-readable version of this query.
(Overrides Query..::..ToString(String).)
Public methodWeight
Expert: Constructs and initializes a Weight for a top-level query.
(Inherited from Query.)

See Also