Package org.apache.lucene.search

Class TermQuery

java.lang.Object

org.apache.lucene.search.Query

org.apache.lucene.search.TermQuery

public class TermQuery
extends Query

A Query that matches documents containing a term. This may be combined with other terms with a BooleanQuery.

Constructor Summary

Constructors

Constructor	Description
TermQuery(Term t)	Constructs a query for the term t.
TermQuery(Term t, TermStates states)	Expert: constructs a TermQuery that will use the provided docFreq instead of looking up the docFreq against the searcher.

Method Summary

Modifier and Type	Method	Description
Weight	createWeight(IndexSearcher searcher, ScoreMode scoreMode, float boost)	Expert: Constructs an appropriate Weight implementation for this query.
boolean	equals(Object other)	Returns true iff other is equal to this.
Term	getTerm()	Returns the term of this query.
TermStates	getTermStates()	Returns the TermStates passed to the constructor, or null if it was not passed.
int	hashCode()	Override and implement query hash code properly in a subclass.
String	toString(String field)	Prints a user-readable version of this query.
void	visit(QueryVisitor visitor)	Recurse through the query tree, visiting any child queries.

Methods inherited from class org.apache.lucene.search.Query

classHash, rewrite, rewrite, sameClassAs, toString

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Details

TermQuery

public TermQuery(Term t)

Constructs a query for the term t.

TermQuery

public TermQuery(Term t,
 TermStates states)

Expert: constructs a TermQuery that will use the provided docFreq instead of looking up the docFreq against the searcher.

Method Details

getTerm

public Term getTerm()

Returns the term of this query.

createWeight

public Weight createWeight(IndexSearcher searcher,
 ScoreMode scoreMode,
 float boost)
                    throws 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.

Overrides:

createWeight in class Query

Parameters:

scoreMode - How the produced scorers will be consumed.

boost - The boost that is propagated by the parent queries.

Throws:

IOException

visit

public void visit(QueryVisitor visitor)

Description copied from class: Query

Recurse through the query tree, visiting any child queries.

Specified by:

visit in class Query

Parameters:

visitor - a QueryVisitor to be called by each query in the tree

toString

public String toString(String field)

Prints a user-readable version of this query.

Specified by:

toString in class Query

getTermStates

public TermStates getTermStates()

Returns the TermStates passed to the constructor, or null if it was not passed.

WARNING: This API is experimental and might change in incompatible ways in the next release.

equals

public boolean equals(Object other)

Returns true iff other is equal to this.

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)