SMWExpData Class Reference

Inheritance diagram for SMWExpData:

Collaboration diagram for SMWExpData:

Public Member Functions
	__construct (SMWExpResource $subject)
	getDataItem ()
	getHash ()
	getSubject ()
	addPropertyObjectValue (SMWExpNsResource $property, Element $child)
	getProperties ()
	getValues (SMWExpResource $property)
	getSpecialValues ( $namespaceId, $localName)
	extractMainType ()
	getCollection ()
	getTripleList (Element $subject=null)

Static Public Member Functions
static	makeCollection (array $elements)

Protected Attributes
	$m_subject
	$m_children = []
	$m_edges = []

Additional Inherited Members
Public Attributes inherited from SMW\Exporter\Element
const	TYPE_RESOURCE = 0
const	TYPE_NSRESOURCE = 1
const	TYPE_LITERAL = 2

Detailed Description

SMWExpData is a class representing semantic data that is ready for easy serialisation in OWL or RDF.

Author

Markus Krötzsch SMWExpData is a data container for export-ready semantic content. It is organised as a tree-shaped data structure with one root subject and zero or more children connected with labelled edges to the root. Children are again SMWExpData objects, and edges are annotated with SMWExpNsElements specifying properties.

Note

We do not allow property element without namespace abbreviation here. Property aabbreviations are mandatory for some serialisations.

Constructor & Destructor Documentation

__construct()

SMWExpData::__construct

(

SMWExpResource

$subject

)

Constructor. $subject is the SMWExpResource for the subject about which this SMWExpData is.

Member Function Documentation

addPropertyObjectValue()

SMWExpData::addPropertyObjectValue	(	SMWExpNsResource	$property,
		Element	$child
	)

Store a value for a property identified by its title object. No duplicate elimination as this is usually done in SMWSemanticData already (which is typically used to generate this object).

Parameters

SMWExpNsResource	$property
Element	$child

extractMainType()

SMWExpData::extractMainType

(

)

This function finds the main type (class) element of the subject based on the current property assignments. It returns this type element (SMWExpElement) and removes the according type assignement from the data. If no type is assigned, the element for rdf:Resource is returned.

Note

Under all normal conditions, the result will be an SMWExpResource.

Returns

SMWExpElement

getCollection()

SMWExpData::getCollection

(

)

Check if this element encodes an RDF list, and if yes return an array of SMWExpElements corresponding to the collection elements in the specified order. Otherwise return false. The method only returns lists that can be encoded using parseType="Collection" in RDF/XML, i.e. only lists of non-literal resources.

Returns

mixed array of SMWExpElement (but not SMWExpLiteral) or false

getDataItem()

SMWExpData::getDataItem

(

)

Since

2.2

Returns

DataItem|null

Implements SMW\Exporter\Element.

getHash()

SMWExpData::getHash

(

)

Since

2.2

Returns

string

Implements SMW\Exporter\Element.

getProperties()

SMWExpData::getProperties

(

)

Return the list of SMWExpResource objects for all properties for which some values have been given.

Returns

array of SMWExpResource

getSpecialValues()

SMWExpData::getSpecialValues	(		$namespaceId,
			$localName
	)

Return the list of SMWExpData values associated to some property that is specified by a standard namespace id and local name.

Parameters

$namespaceId	string idetifying a known special namespace (e.g. "rdf")
$localName	string of local name (e.g. "type")

Returns

array of SMWExpData

getSubject()

SMWExpData::getSubject

(

)

Return subject to which the stored semantic annotation refer to.

Returns

SMWExpResource

getTripleList()

SMWExpData::getTripleList

(

Element

$subject = null

)

Return an array of ternary arrays (subject predicate object) of SMWExpElements that represents the flattened version of this data.

Returns

array of array of SMWExpElement

getValues()

SMWExpData::getValues

(

SMWExpResource

$property

)

Return the list of SMWExpElement values associated to some property (element).

Returns

array of SMWExpElement

makeCollection()

static SMWExpData::makeCollection ( array  $elements )

static

Turn an array of SMWExpElements into an RDF collection.

Parameters

$elements

array of SMWExpElement

Returns

SMWExpData

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

• SMW_Exp_Data.php