Module org.apache.lucene.core

Package org.apache.lucene.search

Class AbstractMultiTermQueryConstantScoreWrapper<Q extends MultiTermQuery>

java.lang.Object

org.apache.lucene.search.Query

org.apache.lucene.search.AbstractMultiTermQueryConstantScoreWrapper<Q>

All Implemented Interfaces:

Accountable

Direct Known Subclasses:

MultiTermQueryConstantScoreBlendedWrapper, MultiTermQueryConstantScoreWrapper

abstract class AbstractMultiTermQueryConstantScoreWrapper<Q extends MultiTermQuery>
extends Query
implements Accountable

Contains functionality common to both MultiTermQueryConstantScoreBlendedWrapper and MultiTermQueryConstantScoreWrapper. Internal implementation detail only. Not meant as an extension point for users.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
protected static class	AbstractMultiTermQueryConstantScoreWrapper.RewritingWeight
protected static final class	AbstractMultiTermQueryConstantScoreWrapper.TermAndState
protected static final class	AbstractMultiTermQueryConstantScoreWrapper.WeightOrDocIdSetIterator

Field Summary

Fields

Modifier and Type	Field	Description
(package private) static final int	BOOLEAN_REWRITE_TERM_COUNT_THRESHOLD
protected final Q	query

Fields inherited from interface org.apache.lucene.util.Accountable

NULL_ACCOUNTABLE

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	AbstractMultiTermQueryConstantScoreWrapper(Q query)

Method Summary

Modifier and Type	Method	Description
boolean	equals(Object other)	Override and implement query instance equivalence properly in a subclass.
String	getField()	Returns the field name for this query
Q	getQuery()	Returns the encapsulated query
int	hashCode()	Override and implement query hash code properly in a subclass.
long	ramBytesUsed()	Return the memory usage of this object in bytes.
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, createWeight, rewrite, rewrite, sameClassAs, toString

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.lucene.util.Accountable

getChildResources

Field Details

BOOLEAN_REWRITE_TERM_COUNT_THRESHOLD

static final int BOOLEAN_REWRITE_TERM_COUNT_THRESHOLD

See Also:

• Constant Field Values

query

protected final Q extends MultiTermQuery query

Constructor Details

AbstractMultiTermQueryConstantScoreWrapper

protected AbstractMultiTermQueryConstantScoreWrapper(Q query)

Method Details

ramBytesUsed

public long ramBytesUsed()

Description copied from interface: Accountable

Return the memory usage of this object in bytes. Negative values are illegal.

Specified by:

ramBytesUsed in interface Accountable

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 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 to those of the 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)

getQuery

public Q getQuery()

Returns the encapsulated query

getField

public String getField()

Returns the field name for this query

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