NodeOPCUA API Documentation
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    Interface UAVariableType

    interface UAVariableType {
        arrayDimensions: number[] | null;
        browseName: QualifiedName;
        dataType: NodeId;
        historizing: boolean;
        isAbstract: boolean;
        minimumSamplingInterval: number;
        nodeClass: VariableType;
        nodeId: NodeId;
        onFirstBrowseAction?: (this: BaseNode) => Promise<void>;
        subtypeOf: NodeId | null;
        subtypeOfObj: UAVariableType | null;
        valueRank: number;
        get accessRestrictions(): AccessRestrictionsFlag | undefined;
        get addressSpace(): IAddressSpace;
        get description(): LocalizedText;
        get displayName(): LocalizedText[];
        get modellingRule(): ModellingRuleType | undefined;
        get namespace(): INamespace;
        get namespaceIndex(): number;
        get namespaceUri(): string;
        get parentNodeId(): NodeId | undefined;
        get rolePermissions(): RolePermissionType[] | undefined;
        addReference(options: AddReferenceOpts): void;
        allReferences(): UAReference[];
        browseNode(
            browseDescription: BrowseDescriptionOptions2,
            session?: ISessionContext,
        ): ReferenceDescription[];
        browseNodeByTargetName(
            relativePathElement: RelativePathElement,
            isLast: boolean,
        ): NodeId[];
        emit<K extends keyof BaseNodeEvents>(
            event: K,
            ...args: Parameters<BaseNodeEvents[K]>,
        ): boolean;
        findReference(
            referenceType: string | NodeId | UAReferenceType,
            isForward?: boolean,
        ): UAReference | null;
        findReferences(
            referenceType: string | NodeId | UAReferenceType,
            isForward?: boolean,
        ): UAReference[];
        findReferencesAsObject(
            referenceType: string | NodeId | UAReferenceType,
            isForward?: boolean,
        ): BaseNode<BaseNodeEvents>[];
        findReferencesEx(
            referenceType: string | NodeId | UAReferenceType,
            browseDirection?: BrowseDirection,
        ): UAReference[];
        findReferencesExAsObject(
            referenceType: string | NodeId | UAReferenceType,
            browseDirection?: BrowseDirection,
        ): BaseNode<BaseNodeEvents>[];
        fullName(): string;
        getAccessRestrictions(inherited: boolean): AccessRestrictionsFlag;
        getAggregates(): BaseNode<BaseNodeEvents>[];
        getBasicDataType(): DataType;
        getChildByName(
            browseName: QualifiedNameOptions,
        ): BaseNode<BaseNodeEvents> | null;
        getChildByName(
            browseName: string,
            namespaceIndex?: number,
        ): BaseNode<BaseNodeEvents> | null;
        getDisplayName(locale?: string): string;
        getEventSourceOfs(): BaseNode<BaseNodeEvents>[];
        getEventSources(): BaseNode<BaseNodeEvents>[];
        getNodeVersion(): UAProperty<UAString, String> | null;
        getRolePermissions(inherited: boolean): RolePermissionType[] | null;
        install_extra_properties(): void;
        instantiate(options: InstantiateVariableOptions): UAVariable;
        isDisposed(): boolean;
        isSubtypeOf(type: NodeIdLike | UAVariableType): boolean;
        isSupertypeOf(type: NodeIdLike | UAVariableType): boolean;
        listenerCount<K extends keyof BaseNodeEvents>(event: K): number;
        off<K extends keyof BaseNodeEvents>(
            event: K,
            listener: BaseNodeEvents[K],
        ): this;
        on<K extends keyof BaseNodeEvents>(
            event: K,
            listener: BaseNodeEvents[K],
        ): this;
        once<K extends keyof BaseNodeEvents>(
            event: K,
            listener: BaseNodeEvents[K],
        ): this;
        readAttribute(
            context: ISessionContext | null,
            attributeId: AttributeIds,
            indexRange?: NumericRange,
            dataEncoding?: QualifiedNameLike | null,
        ): DataValue;
        removeAllListeners(): void;
        removeListener<K extends keyof BaseNodeEvents>(
            event: K,
            listener: BaseNodeEvents[K],
        ): void;
        removeReference(referenceOpts: AddReferenceOpts): void;
        setAccessRestrictions(accessRestrictions: AccessRestrictionsFlag): void;
        setDescription(value: LocalizedTextLike | null): void;
        setDisplayName(value: LocalizedTextLike | LocalizedTextLike[]): void;
        setMaxListeners(n: number): void;
        setRolePermissions(rolePermissions: RolePermissionTypeOptions[]): void;
        writeAttribute(
            context: ISessionContext | null,
            writeValue: WriteValueOptions,
            callback: (err: Error | null, statusCode?: StatusCode) => void,
        ): void;
    }

    Hierarchy (View Summary)

    Index

    Properties

    arrayDimensions browseName dataType historizing isAbstract minimumSamplingInterval nodeClass nodeId onFirstBrowseAction? subtypeOf subtypeOfObj valueRank

    Accessors

    accessRestrictions addressSpace description displayName modellingRule namespace namespaceIndex namespaceUri parentNodeId rolePermissions

    Methods

    addReference allReferences browseNode browseNodeByTargetName emit findReference findReferences findReferencesAsObject findReferencesEx findReferencesExAsObject fullName getAccessRestrictions getAggregates getBasicDataType getChildByName getDisplayName getEventSourceOfs getEventSources getNodeVersion getRolePermissions install_extra_properties instantiate isDisposed isSubtypeOf isSupertypeOf listenerCount off on once readAttribute removeAllListeners removeListener removeReference setAccessRestrictions setDescription setDisplayName setMaxListeners setRolePermissions writeAttribute

    Properties

    arrayDimensions: number[] | null
    browseName: QualifiedName
    dataType: NodeId
    historizing: boolean
    isAbstract: boolean
    minimumSamplingInterval: number
    nodeClass: VariableType
    nodeId: NodeId
    onFirstBrowseAction?: (this: BaseNode) => Promise<void>
    subtypeOf: NodeId | null
    subtypeOfObj: UAVariableType | null
    valueRank: number

    Accessors

    • get addressSpace(): IAddressSpace

      Returns IAddressSpace

    • get description(): LocalizedText

      Returns LocalizedText

    • get displayName(): LocalizedText[]

      Returns LocalizedText[]

    • get modellingRule(): ModellingRuleType | undefined

      Returns ModellingRuleType | undefined

    • get namespace(): INamespace

      Returns INamespace

    • get namespaceIndex(): number

      Returns number

    • get namespaceUri(): string

      Returns string

    • get parentNodeId(): NodeId | undefined

      Returns NodeId | undefined

    • get rolePermissions(): RolePermissionType[] | undefined

      Returns RolePermissionType[] | undefined

    Methods

    • find the the references that are strictly of type reference.

      The isForward boolean flag specifies the direction of the references to be looked for.

      Forward direction is implied if omitted.

      • will throw an exception if more than one reference exists with the referenceType.
      • will return null if no reference exists.

      Parameters

      Returns UAReference | null

    • find all the references that are strictly of type reference. The isForward boolean flag specifies the direction of the references to be looked for.

      Forward direction is implied if omitted.

      Parameters

      Returns UAReference[]

    • find all the nodes that are referenced by references strictly of type reference.

      The isForward boolean flag specifies the direction of the references to be looked for.

      Forward direction is implied if omitted.

      • will throw an exception if more than one reference exists with the referenceType.
      • will return null if no reference exists.

      Parameters

      Returns BaseNode<BaseNodeEvents>[]

    • return a complete name of this object by pre-pending name of its parent(s) to its own name

      Returns string

    • get effective accessRestrictions if (inherited is true) and node has no accessRestrictions, then default accessRestriction from namespace is returned if (inherited is false) and node has no accessRestrictions, then AccessRestrictionsFlag.None is returned

      Parameters

      • inherited: boolean

      Returns AccessRestrictionsFlag

    • Returns DataType

    • Parameters

      • Optionallocale: string

        the locale of the text to return (e.g. en-EN)

      Returns string

    • private

      Returns void

    • Returns boolean

    • Returns void

    • Parameters

      • n: number

      Returns void

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