Search/Lucene/Search/Query/Boolean.php

category: Zend
copyright: Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
license: http://framework.zend.com/license/new-bsd New BSD License
package: Zend_Search_Lucene
subpackage: Search
version: $Id: Boolean.php 20096 2010-01-06 02:05:09Z bkarwin $
Classes: Zend_Search_Lucene_Search_Query_Boolean

Description

Zend Framework

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 license@zend.com so we can send you a copy immediately.

Zend_Search_Lucene_Search_Query_Boolean
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Extends from: Zend_Search_Lucene_Search_Query
category: Zend
copyright: Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
license: http://framework.zend.com/license/new-bsd New BSD License
package: Zend_Search_Lucene
subpackage: Search
Properties: $_subqueries; $_signs; $_resVector; $_coord
Methods: __construct; addSubquery; rewrite; optimize; getSubqueries; getSigns; createWeight; _calculateConjunctionResult; _calculateNonConjunctionResult; _conjunctionScore; _nonConjunctionScore; execute; matchedDocs; score; getQueryTerms; _highlightMatches; __toString

Description

Properties

$_coord
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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

Details

$_coord: mixed
visibility: private
default: null
final: false
static: false

$_resVector
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array $_resVector = 'null'

Result vector.

Details

$_resVector: array
visibility: private
default: null
final: false
static: false

$_signs
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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

Details

$_signs: array
visibility: private
default: array
final: false
static: false

$_subqueries
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array $_subqueries = 'array'

Subqueries Array of Zend_Search_Lucene_Search_Query

Details

$_subqueries: array
visibility: private
default: array
final: false
static: false

Methods

__construct
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__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

Arguments

$subqueries: array
Array of Zend_Search_Search_Query objects
$signs: array
Array of signs. Sign is boolean|null.

Details

visibility: public
final: false
static: false

__toString
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__toString(
          
          )
        
        :
        string

Print a query

Output

string

Details

visibility: public
final: false
static: false

_calculateConjunctionResult
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_calculateConjunctionResult(
          
          )
        
        :

Calculate result vector for Conjunction query (like '<subquery1> AND <subquery2> AND <subquery3>')

Details

visibility: private
final: false
static: false

_calculateNonConjunctionResult
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_calculateNonConjunctionResult(
          
          )
        
        :

Calculate result vector for non Conjunction query (like '<subquery1> AND <subquery2> AND NOT <subquery3> OR <subquery4>')

Details

visibility: private
final: false
static: false

_conjunctionScore
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_conjunctionScore(
          integer $docId, Zend_Search_Lucene_Interface $reader
          )
        
        :
        float

Score calculator for conjunction queries (all subqueries are required)

Arguments

$docId: integer
$reader: Zend_Search_Lucene_Interface

Output

float

Details

visibility: public
final: false
static: false

_highlightMatches
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_highlightMatches(
          Zend_Search_Lucene_Search_Highlighter_Interface $highlighter
          )
        
        :

Query specific matches highlighting

Arguments

$highlighter: Zend_Search_Lucene_Search_Highlighter_Interface
Highlighter object (also contains doc for highlighting)

Details

visibility: protected
final: false
static: false

_nonConjunctionScore
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_nonConjunctionScore(
          integer $docId, Zend_Search_Lucene_Interface $reader
          )
        
        :
        float

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

Arguments

$docId: integer
$reader: Zend_Search_Lucene_Interface

Output

float

Details

visibility: public
final: false
static: false

addSubquery
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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

Arguments

$subquery: Zend_Search_Lucene_Search_Query
$sign: booleannull

Details

visibility: public
final: false
static: false

createWeight
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createWeight(
          Zend_Search_Lucene_Interface $reader
          )
        
        :
        Zend_Search_Lucene_Search_Weight

Constructs an appropriate Weight implementation for this query.

Arguments

$reader: Zend_Search_Lucene_Interface

Output

Zend_Search_Lucene_Search_Weight

Details

visibility: public
final: false
static: false

execute
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execute(
          Zend_Search_Lucene_Interface $reader, Zend_Search_Lucene_Index_DocsFilter|null $docsFilter
              =
              null
          )
        
        :

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

Arguments

$reader: Zend_Search_Lucene_Interface
$docsFilter: Zend_Search_Lucene_Index_DocsFilternull

Details

visibility: public
final: false
static: false

getQueryTerms
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getQueryTerms(
          
          )
        
        :
        array

Return query terms

Output

array

Details

visibility: public
final: false
static: false

getSigns
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getSigns(
          
          )
        
        :
        array

Return subqueries signs

Output

array

Details

visibility: public
final: false
static: false

getSubqueries
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getSubqueries(
          
          )
        
        :
        array

Returns subqueries

Output

array

Details

visibility: public
final: false
static: false

matchedDocs
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matchedDocs(
          
          )
        
        :
        array

Get document ids likely matching the query

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

Output

array

Details

visibility: public
final: false
static: false

optimize
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optimize(
          Zend_Search_Lucene_Interface $index
          )
        
        :
        Zend_Search_Lucene_Search_Query

Optimize query in the context of specified index

Arguments

$index: Zend_Search_Lucene_Interface

Output

Zend_Search_Lucene_Search_Query

Details

visibility: public
final: false
static: false

rewrite
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rewrite(
          Zend_Search_Lucene_Interface $index
          )
        
        :
        Zend_Search_Lucene_Search_Query

Re-write queries into primitive queries

Arguments

$index: Zend_Search_Lucene_Interface

Output

Zend_Search_Lucene_Search_Query

Details

visibility: public
final: false
static: false

score
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score(
          integer $docId, Zend_Search_Lucene_Interface $reader
          )
        
        :
        float

Score specified document

Arguments

$docId: integer
$reader: Zend_Search_Lucene_Interface

Output

float

Details

visibility: public
final: false
static: false

API Documentation

Search/Lucene/Search/Query/Boolean.php

Description

Zend_Search_Lucene_Search_Query_Booleanjump to top

Description

Properties

$_coordjump to class

Details

$_resVectorjump to class

Details

$_signsjump to class

Details

$_subqueriesjump to class

Details

Methods

__constructjump to class

Arguments

Details

__toStringjump to class

Output

Details

_calculateConjunctionResultjump to class

Details

_calculateNonConjunctionResultjump to class

Details

_conjunctionScorejump to class

Arguments

Output

Details

_highlightMatchesjump to class

Arguments

Details

_nonConjunctionScorejump to class

Arguments

Output

Details

addSubqueryjump to class

Arguments

Details

createWeightjump to class

Arguments

Output

Details

executejump to class

Arguments

Details

getQueryTermsjump to class

Output

Details

getSignsjump to class

Output

Details

getSubqueriesjump to class

Output

Details

matchedDocsjump to class

Output

Details

optimizejump to class

Arguments

Output

Details

rewritejump to class

Arguments

Output

Details

scorejump to class

Arguments

Output

Details

Zend_Search_Lucene_Search_Query_Boolean
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$_coord
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$_resVector
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$_signs
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$_subqueries
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__construct
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__toString
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_calculateConjunctionResult
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_calculateNonConjunctionResult
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_conjunctionScore
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_highlightMatches
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_nonConjunctionScore
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addSubquery
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createWeight
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execute
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getQueryTerms
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getSigns
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getSubqueries
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matchedDocs
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optimize
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rewrite
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score
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