API Documentation

Zend/Search/Lucene/Search/Query/Boolean.php

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Zend Framework

LICENSE

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Category
Zend  
Copyright
Copyright (c) 2005-2012 Zend Technologies USA Inc. (http://www.zend.com)  
License
New BSD License  
Package
Zend_Search_Lucene  
Subpackage
Search  
Version
$Id: Boolean.php 24594 2012-01-05 21:27:01Z matthew $  

\Zend_Search_Lucene_Search_Query_Boolean

Package: Zend\Search\Lucene\Search

Parent(s)
\Zend_Search_Lucene_Search_Query
Category
Zend  
Copyright
Copyright (c) 2005-2012 Zend Technologies USA Inc. (http://www.zend.com)  
License
New BSD License  

Properties

Propertyprivatemixed  $_coord= 'null'

A score factor based on the fraction of all query subqueries that a document contains.

float for conjunction queries array of float for non conjunction queries

Default valuenullDetails
Type
mixed
Propertyprivatearray  $_resVector= 'null'

Result vector.

Default valuenullDetails
Type
array
Propertyprivatearray  $_signs= 'array()'

Subqueries signs.

If true then subquery is required. If false then subquery is prohibited. If null then subquery is neither prohibited, nor required

If array is null then all subqueries are required

Default valuearray()Details
Type
array
Propertyprivatearray  $_subqueries= 'array()'

Subqueries Array of Zend_Search_Lucene_Search_Query

Default valuearray()Details
Type
array

Methods

methodpublic__construct( array $subqueries = null, array $signs = null ) : void

Class constructor. Create a new Boolean query object.

if $signs array is omitted then all subqueries are required it differs from addSubquery() behavior, but should never be used

Parameters
Name Type Description
$subqueries array

Array of Zend_Search_Search_Query objects

$signs array

Array of signs. Sign is boolean|null.

methodpublic__toString( ) : string

Print a query

Returns
Type Description
string
methodprivate_calculateConjunctionResult( ) : void

Calculate result vector for Conjunction query (like ' AND AND ')

methodprivate_calculateNonConjunctionResult( ) : void

Calculate result vector for non Conjunction query (like ' AND AND NOT OR ')

methodpublic_conjunctionScore( integer $docId, \Zend_Search_Lucene_Interface $reader ) : float

Score calculator for conjunction queries (all subqueries are required)

Parameters
Name Type Description
$docId integer
$reader \Zend_Search_Lucene_Interface
Returns
Type Description
float
methodprotected_highlightMatches( \Zend_Search_Lucene_Search_Highlighter_Interface $highlighter ) : void

Query specific matches highlighting

Parameters
Name Type Description
$highlighter \Zend_Search_Lucene_Search_Highlighter_Interface

Highlighter object (also contains doc for highlighting)

methodpublic_nonConjunctionScore( integer $docId, \Zend_Search_Lucene_Interface $reader ) : float

Score calculator for non conjunction queries (not all subqueries are required)

Parameters
Name Type Description
$docId integer
$reader \Zend_Search_Lucene_Interface
Returns
Type Description
float
methodpublicaddSubquery( \Zend_Search_Lucene_Search_Query $subquery, boolean|null $sign = null ) : void

Add a $subquery (Zend_Search_Lucene_Search_Query) to this query.

The sign is specified as: TRUE - subquery is required FALSE - subquery is prohibited NULL - subquery is neither prohibited, nor required

Parameters
Name Type Description
$subquery \Zend_Search_Lucene_Search_Query
$sign boolean|null
methodpubliccreateWeight( \Zend_Search_Lucene_Interface $reader ) : \Zend_Search_Lucene_Search_Weight

Constructs an appropriate Weight implementation for this query.

Parameters
Name Type Description
$reader \Zend_Search_Lucene_Interface
Returns
Type Description
\Zend_Search_Lucene_Search_Weight
methodpublicexecute( \Zend_Search_Lucene_Interface $reader, \Zend_Search_Lucene_Index_DocsFilter|null $docsFilter = null ) : void

Execute query in context of index reader It also initializes necessary internal structures

Parameters
Name Type Description
$reader \Zend_Search_Lucene_Interface
$docsFilter \Zend_Search_Lucene_Index_DocsFilter|null
methodpublicgetQueryTerms( ) : array

Return query terms

Returns
Type Description
array
methodpublicgetSigns( ) : array

Return subqueries signs

Returns
Type Description
array
methodpublicgetSubqueries( ) : array

Returns subqueries

Returns
Type Description
array
methodpublicmatchedDocs( ) : array

Get document ids likely matching the query

It's an array with document ids as keys (performance considerations)

Returns
Type Description
array
methodpublicoptimize( \Zend_Search_Lucene_Interface $index ) : \Zend_Search_Lucene_Search_Query

Optimize query in the context of specified index

Parameters
Name Type Description
$index \Zend_Search_Lucene_Interface
Returns
Type Description
\Zend_Search_Lucene_Search_Query
methodpublicrewrite( \Zend_Search_Lucene_Interface $index ) : \Zend_Search_Lucene_Search_Query

Re-write queries into primitive queries

Parameters
Name Type Description
$index \Zend_Search_Lucene_Interface
Returns
Type Description
\Zend_Search_Lucene_Search_Query
methodpublicscore( integer $docId, \Zend_Search_Lucene_Interface $reader ) : float

Score specified document

Parameters
Name Type Description
$docId integer
$reader \Zend_Search_Lucene_Interface
Returns
Type Description
float
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