Package org.apache.lucene.search

Class IndriQuery

java.lang.Object

org.apache.lucene.search.Query

org.apache.lucene.search.IndriQuery

All Implemented Interfaces:

Iterable<BooleanClause>

Direct Known Subclasses:

IndriAndQuery

public abstract class IndriQuery
extends Query
implements Iterable<BooleanClause>

A Basic abstract query that all IndriQueries can extend to implement toString, equals, getClauses, and iterator.

Constructor Summary

Constructors

Constructor	Description
IndriQuery(List<BooleanClause> clauses)

Method Summary

Modifier and Type	Method	Description
abstract Weight	createWeight(IndexSearcher searcher, ScoreMode scoreMode, float boost)	Expert: Constructs an appropriate Weight implementation for this query.
boolean	equals(Object o)	Override and implement query instance equivalence properly in a subclass.
List<BooleanClause>	getClauses()
int	hashCode()	Override and implement query hash code properly in a subclass.
Iterator<BooleanClause>	iterator()
String	toString(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 org.apache.lucene.search.Query

classHash, rewrite, sameClassAs, toString

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.lang.Iterable

forEach, spliterator

Constructor Details

IndriQuery

public IndriQuery(List<BooleanClause> clauses)

Method Details

createWeight

public abstract 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

scoreMode - How the produced scorers will be consumed.

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

Throws:

IOException

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

equals

public boolean equals(Object o)

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()

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

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)

iterator

public Iterator<BooleanClause> iterator()

Specified by:

iterator in interface Iterable<BooleanClause>

getClauses

public List<BooleanClause> getClauses()