SMWConceptDescription Class Reference
[SMWQuery]

Description of a single class as described by a concept page in the wiki. More...

Inherits SMWDescription.

List of all members.

Public Member Functions
	__construct (SMWDIWikiPage $concept)
	Constructor.
	getConcept ()
	getQueryString ($asvalue=false)
	Return a string expressing this query.
	isSingleton ()
	Return true if the description is required to encompass at most a single result, independently of the knowledge base.
	getQueryFeatures ()
	Report on query features used in description.
Protected Attributes
	$m_concept

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Detailed Description

Description of a single class as described by a concept page in the wiki.

Corresponds to classes in (the EL fragment of) OWL DL, and to some extent to tree-shaped queries in SPARQL.

Definition at line 306 of file SMW_Description.php.

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Constructor & Destructor Documentation

SMWConceptDescription::__construct

(

SMWDIWikiPage $

concept

)

Constructor.

Parameters:

SMWDIWikiPage

$concept

Definition at line 318 of file SMW_Description.php.

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Member Function Documentation

SMWConceptDescription::getConcept

(

)

Returns:

SMWDIWikiPage

Definition at line 325 of file SMW_Description.php.

SMWConceptDescription::getQueryString

(

$

asvalue = false

)

Return a string expressing this query.

Some descriptions have different syntax in property value positions. The parameter $asvalue specifies whether the serialisation should take that into account.

Example: The SMWValueDescription [[Paris]] returns the single result "Paris" but can also be used as value in [[has location::Paris]] which is preferred over the canonical [[has location::<q>[[Paris]]</q>]].

Parameters:

boolean

$asvalue

Returns:

string

Reimplemented from SMWDescription.

Definition at line 329 of file SMW_Description.php.

References SMWDataValueFactory::newDataItemValue().

SMWConceptDescription::isSingleton

(

)

Return true if the description is required to encompass at most a single result, independently of the knowledge base.

Returns:

boolean

Reimplemented from SMWDescription.

Definition at line 339 of file SMW_Description.php.

SMWConceptDescription::getQueryFeatures

(

)

Report on query features used in description.

Return values are (sums of) query feature constants such as SMW_PROPERTY_QUERY.

Reimplemented from SMWDescription.

Definition at line 343 of file SMW_Description.php.

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Member Data Documentation

SMWConceptDescription::$m_concept [protected]

Definition at line 311 of file SMW_Description.php.

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The documentation for this class was generated from the following file:

• SemanticMediaWiki/includes/storage/SMW_Description.php