Interface: DataProvider

Asynchronously provides data for the elements, links and other graph entities.

Properties

Property	Modifier	Type	Description
factory	readonly	DataFactory	Returns an RDF term factory to create RDF terms for identifiers and property values.

Methods

connectedLinkStats()

connectedLinkStats(params): Promise<DataProviderLinkCount[]>

Gets connected link types of an element for exploration.

Parameters

Parameter	Type	Description
params	object	‐
params.elementId	ElementIri	Target element to count linked elements from/to.
params.inexactCount?	boolean	Whether to allow to return inexact count of elements connected by an each link type when result is non-zero. Default false
params.signal?	AbortSignal	Cancellation signal.

Returns

Promise<DataProviderLinkCount[]>

Defined in

data/provider.ts:123

---

elementTypes()

elementTypes(params): Promise<Map<ElementTypeIri, ElementTypeModel>>

Gets the data for the specified element types.

Parameters

Parameter	Type	Description
params	object	‐
params.classIds	readonly ElementTypeIri[]	Target element types to query data for.
params.signal?	AbortSignal	Cancellation signal.

Returns

Promise<Map<ElementTypeIri, ElementTypeModel>>

Defined in

data/provider.ts:42

---

elements()

elements(params): Promise<Map<ElementIri, ElementModel>>

Gets the data for the specified elements.

Parameters

Parameter	Type	Description
params	object	‐
params.elementIds	readonly ElementIri[]	Target elements to query data for.
params.signal?	AbortSignal	Cancellation signal.

Returns

Promise<Map<ElementIri, ElementModel>>

Defined in

data/provider.ts:84

---

knownElementTypes()

knownElementTypes(params): Promise<ElementTypeGraph>

Gets the structure and data for all known element types.

Parameters

Parameter	Type	Description
params	object	‐
params.signal?	AbortSignal	Cancellation signal.

Returns

Promise<ElementTypeGraph>

Defined in

data/provider.ts:22

---

knownLinkTypes()

knownLinkTypes(params): Promise<LinkTypeModel[]>

Gets the data and statistics for all known link types.

Parameters

Parameter	Type	Description
params	object	‐
params.signal?	AbortSignal	Cancellation signal.

Returns

Promise<LinkTypeModel[]>

Defined in

data/provider.ts:32

---

linkTypes()

linkTypes(params): Promise<Map<LinkTypeIri, LinkTypeModel>>

Gets the data for the specified link types.

Parameters

Parameter	Type	Description
params	object	‐
params.linkTypeIds	readonly LinkTypeIri[]	Target link types to query data for.
params.signal?	AbortSignal	Cancellation signal.

Returns

Promise<Map<LinkTypeIri, LinkTypeModel>>

Defined in

data/provider.ts:70

---

links()

links(params): Promise<LinkModel[]>

Get all links between two specified sets of entities (bipartite graph links).

To get all links between all entities in the set, it is possible to pass the same set to both primary and secondary sets of elements.

Parameters

Parameter	Type	Description
params	object	‐
params.linkTypeIds?	readonly LinkTypeIri[]	Return only links with specified types.
params.primary	readonly ElementIri[]	First set of entities to get links between them and secondary elements.
params.secondary	readonly ElementIri[]	Second set of entities to get links between them and primary elements.
params.signal?	AbortSignal	Cancellation signal.

Returns

Promise<LinkModel[]>

Defined in

data/provider.ts:101

---

lookup()

lookup(params): Promise<DataProviderLookupItem[]>

Looks up elements with different filters:

• by an element type via elementTypeId;
• by a connected element via refElementId, refElementLinkId and linkDirection;
• by a text lookup via text;

Filters can be combined to produce an intersection of the results.

Parameters

Parameter	Type
params	DataProviderLookupParams

Returns

Promise<DataProviderLookupItem[]>

Defined in

data/provider.ts:149

---

propertyTypes()

propertyTypes(params): Promise<Map<PropertyTypeIri, PropertyTypeModel>>

Gets the data for the specified property types.

Parameters

Parameter	Type	Description
params	object	‐
params.propertyIds	readonly PropertyTypeIri[]	Target property types to query data for.
params.signal?	AbortSignal	Cancellation signal.

Returns

Promise<Map<PropertyTypeIri, PropertyTypeModel>>

Defined in

data/provider.ts:56