Search/Lucene/Search/Query/Boolean.php

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LICENSE

This source file is subject to the new BSD license that is bundled with this package in the file LICENSE.txt. It is also available through the world-wide-web at this URL: http://framework.zend.com/license/new-bsd If you did not receive a copy of the license and are unable to obtain it through the world-wide-web, please send an email to [email protected] so we can send you a copy immediately.

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 24593 2012-01-05 20:35:02Z matthew $

\Zend_Search_Lucene_Search_Query_Boolean
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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

float $_boost = 1

inherited

query boost factor

Inherited from: \Zend_Search_Lucene_Search_Query::$$_boost

Default value1Details

Type: float
Inherited_from: \Zend_Search_Lucene_Search_Query::$$_boost

mixed $_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

integer $_currentColorIndex = 0

inherited

Current highlight color

Inherited from: \Zend_Search_Lucene_Search_Query::$$_currentColorIndex

Default value0Details

Type: integer
Inherited_from: \Zend_Search_Lucene_Search_Query::$$_currentColorIndex

array $_resVector = null

Result vector.

Default valuenullDetails

Type: array

array $_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

array $_subqueries = array()

Subqueries Array of Zend_Search_Lucene_Search_Query

Default valuearray()Details

Type: array

\Zend_Search_Lucene_Search_Weight $_weight = null

inherited

Query weight

Inherited from: \Zend_Search_Lucene_Search_Query::$$_weight

Default valuenullDetails

Type: \Zend_Search_Lucene_Search_Weight
Inherited_from: \Zend_Search_Lucene_Search_Query::$$_weight

Methods

__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.

__toString() : string

Print a query

Returns

Type	Description
string

_calculateConjunctionResult() : void

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

_calculateNonConjunctionResult() : void

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

_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

_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)

_initWeight(\Zend_Search_Lucene_Interface $reader) : void

inherited

Constructs an initializes a Weight for a _top-level_query_.

Inherited from: \Zend_Search_Lucene_Search_Query::_initWeight()

Parameters

Name	Type	Description
$reader	\Zend_Search_Lucene_Interface

_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

addSubquery(\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

createWeight(\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

execute(\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

Query specific implementation

Parameters

Name	Type	Description
$reader	\Zend_Search_Lucene_Interface
$docsFilter	\Zend_Search_Lucene_Index_DocsFilter \| null

getBoost() : float

inherited

Gets the boost for this clause.

Inherited from: \Zend_Search_Lucene_Search_Query::getBoost()

Documents matching this clause will (in addition to the normal weightings) have their score multiplied by boost. The boost is 1.0 by default.

Returns

Type	Description
float

getQueryTerms() : array

Return query terms

Returns

Type	Description
array

getSigns() : array

Return subqueries signs

Returns

Type	Description
array

getSubqueries() : array

Returns subqueries

Returns

Type	Description
array

highlightMatches(string $inputHTML, string $defaultEncoding = '', \Zend_Search_Lucene_Search_Highlighter_Interface | null $highlighter = null) : string

inherited

Highlight matches in $inputHTML

Inherited from: \Zend_Search_Lucene_Search_Query::highlightMatches()

Parameters

Name	Type	Description
$inputHTML	string
$defaultEncoding	string	HTML encoding, is used if it's not specified using Content-type HTTP-EQUIV meta tag.
$highlighter	\Zend_Search_Lucene_Search_Highlighter_Interface \| null

Returns

Type	Description
string

htmlFragmentHighlightMatches(string $inputHtmlFragment, string $encoding = 'UTF-8', \Zend_Search_Lucene_Search_Highlighter_Interface | null $highlighter = null) : string

inherited

Highlight matches in $inputHtmlFragment and return it (without HTML header and body tag)

Inherited from: \Zend_Search_Lucene_Search_Query::htmlFragmentHighlightMatches()

Parameters

Name	Type	Description
$inputHtmlFragment	string
$encoding	string	Input HTML string encoding
$highlighter	\Zend_Search_Lucene_Search_Highlighter_Interface \| null

Returns

Type	Description
string

matchedDocs() : array

Get document ids likely matching the query

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

Returns

Type	Description
array

optimize(\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

reset() : void

inherited

Reset query, so it can be reused within other queries or with other indeces

Inherited from: \Zend_Search_Lucene_Search_Query::reset()

rewrite(\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

score(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

setBoost(float $boost) : void

inherited

Sets the boost for this query clause to $boost.

Inherited from: \Zend_Search_Lucene_Search_Query::setBoost()

Parameters

Name	Type	Description
$boost	float

Search/Lucene/Search/Query/Boolean.php

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Properties

Methods

\Zend_Search_Lucene_Search_Query_Boolean
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