Class: RelationGroup

Defined in: src/editor/dataElements.ts:529

A group of multiple data graph relations represented by a diagram link.

Extends

• Link

Constructors

Constructor

new RelationGroup(props): RelationGroup

Defined in: src/editor/dataElements.ts:539

Parameters

Parameter	Type
props	RelationGroupProps

Returns

RelationGroup

Overrides

Link.constructor

Properties

Property	Modifier	Type	Default value	Description	Overrides	Inherited from
events	readonly	Events<RelationGroupEvents>	undefined	Events for the graph link.	Link.events	‐
id	readonly	string	undefined	Unique and immutable link ID on the diagram.	‐	Link.id
fromJSONType	readonly	"LinkGroup"	'LinkGroup'	‐	‐	‐

Accessors

itemKeys

Get Signature

get itemKeys(): ReadonlyHashSet<LinkKey>

Defined in: src/editor/dataElements.ts:572

Returns

ReadonlyHashSet<LinkKey>

---

items

Get Signature

get items(): readonly RelationGroupItem[]

Defined in: src/editor/dataElements.ts:554

Returns

readonly RelationGroupItem[]

---

itemSources

Get Signature

get itemSources(): ReadonlySet<ElementIri>

Defined in: src/editor/dataElements.ts:576

Returns

ReadonlySet<ElementIri>

---

itemTargets

Get Signature

get itemTargets(): ReadonlySet<ElementIri>

Defined in: src/editor/dataElements.ts:580

Returns

ReadonlySet<ElementIri>

---

linkState

Get Signature

get linkState(): TemplateState

Defined in: src/diagram/elements.ts:398

Gets a serializable template-specific state for the link.

Returns

TemplateState

Inherited from

Link.linkState

---

sourceId

Get Signature

get sourceId(): string

Defined in: src/diagram/elements.ts:345

Gets an immutable link source element ID.

Returns

string

Inherited from

Link.sourceId

---

targetId

Get Signature

get targetId(): string

Defined in: src/diagram/elements.ts:352

Gets an immutable link target element ID.

Returns

string

Inherited from

Link.targetId

---

typeId

Get Signature

get typeId(): LinkTypeIri

Defined in: src/diagram/elements.ts:359

Gets the link type IRI.

Returns

LinkTypeIri

Inherited from

Link.typeId

---

vertices

Get Signature

get vertices(): readonly Vector[]

Defined in: src/diagram/elements.ts:375

Gets the link geometry (intermediate points in paper coordinates in order from the link source to the target).

Returns

readonly Vector[]

Inherited from

Link.vertices

Methods

redraw()

redraw(): void

Defined in: src/diagram/elements.ts:418

Forces a re-render of the link displayed by a template on a canvas.

Returns

void

Inherited from

Link.redraw

---

setItems()

setItems(value): void

Defined in: src/editor/dataElements.ts:558

Parameters

Parameter	Type
value	readonly RelationGroupItem[]

Returns

void

---

setLinkState()

setLinkState(value): void

Defined in: src/diagram/elements.ts:408

Sets a new value for linkState property.

Triggers LinkEvents.changeLinkState event if new value does not equal to the previous one.

Parameters

Parameter	Type
value	TemplateState

Returns

void

Inherited from

Link.setLinkState

---

setVertices()

setVertices(value): void

Defined in: src/diagram/elements.ts:388

Sets a new value for vertices property.

Triggers LinkEvents.changeVertices event if new geometry does not equal to the previous one.

Parameters

Parameter	Type
value	readonly Vector[]

Returns

void

See

• RestoreGeometry
• restoreCapturedLinkGeometry

Inherited from

Link.setVertices

---

toJSON()

toJSON(): SerializedRelationGroup

Defined in: src/editor/dataElements.ts:632

Returns

SerializedRelationGroup

---

fromJSON()

static fromJSON(state, options): undefined | RelationGroup

Defined in: src/editor/dataElements.ts:597

Parameters

Parameter	Type
state	SerializedRelationGroup
options	LinkFromJsonOptions

Returns

undefined | RelationGroup

---

generateId()

static generateId(): string

Defined in: src/diagram/elements.ts:338

Generates a new unique ID for an link.

Returns

string

Inherited from

Link.generateId