Hierarchy
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NodeId
- ExpandedNodeId
Index
Constructors
Properties
Methods
Constructors
constructor
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Parameters
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forDeserialization: null
Returns ExpandedNodeId
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Parameters
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identifierType: NodeIdType
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value: string | number | Buffer
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namespace: number
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Optional namespaceUri: string
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Optional serverIndex: number
Returns ExpandedNodeId
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Properties
identifierType
namespace
namespaceUri
serverIndex
value
Static NodeIdType
Static nullExpandedNodeId
Static nullNodeId
Static resolveNodeId
Static sameNodeId
Methods
displayText
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Returns string
isEmpty
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returns true if the NodeId is null or empty
Returns boolean
toJSON
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convert nodeId to a JSON string. same as {@link NodeId#toString }
Returns any
toString
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Returns string
Static fromNodeId
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Parameters
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nodeId: NodeId
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Optional namespaceUri: string
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Optional serverIndex: number
Returns ExpandedNodeId
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An ExpandedNodeId extends the NodeId structure.
An ExpandedNodeId extends the NodeId structure by allowing the NamespaceUri to be explicitly specified instead of using the NamespaceIndex. The NamespaceUri is optional. If it is specified then the NamespaceIndex inside the NodeId shall be ignored.
The ExpandedNodeId is encoded by first encoding a NodeId as described in Clause 5 .2.2.9 and then encoding NamespaceUri as a String.
An instance of an ExpandedNodeId may still use the NamespaceIndex instead of the NamespaceUri. In this case, the NamespaceUri is not encoded in the stream. The presence of the NamespaceUri in the stream is indicated by setting the NamespaceUri flag in the encoding format byte for the NodeId.
If the NamespaceUri is present then the encoder shall encode the NamespaceIndex as 0 in the stream when the NodeId portion is encoded. The unused NamespaceIndex is included in the stream for consistency,
An ExpandedNodeId may also have a ServerIndex which is encoded as a UInt32 after the NamespaceUri. The ServerIndex flag in the NodeId encoding byte indicates whether the ServerIndex is present in the stream. The ServerIndex is omitted if it is equal to zero.
the nodeID type
the node id value. The type of Value depends on identifierType.
the index of the related namespace (optional , default value = 0 )
NamespaceUri
the server Index