.NET Based OPC UA Client/Server SDK
2.5.5.400
|
An XML element encoded as a UTF-8 string.
Field | DataType | ValueRank |
---|---|---|
Length | Int32 | Scalar |
Value | Char | Array |
An identifier for a node in a UA server address space.
Field | DataType | ValueRank |
---|---|---|
NodeIdType | NodeIdType | Scalar |
Reserved1 | Bit | Scalar |
TwoByte | TwoByteNodeId | Scalar |
FourByte | FourByteNodeId | Scalar |
Numeric | NumericNodeId | Scalar |
String | StringNodeId | Scalar |
Guid | GuidNodeId | Scalar |
ByteString | ByteStringNodeId | Scalar |
A string qualified with a namespace index.
Field | DataType | ValueRank |
---|---|---|
NamespaceIndex | Int32 | Scalar |
Name | CharArray | Scalar |
A string qualified with a namespace index.
Field | DataType | ValueRank |
---|---|---|
LocaleSpecified | Bit | Scalar |
TextSpecified | Bit | Scalar |
Reserved1 | Bit | Scalar |
Locale | CharArray | Scalar |
Text | CharArray | Scalar |
This data type is an enumeration that identifies the NamingRule.
Enum String | Enum Value |
---|---|
Mandatory | 1 |
Optional | 2 |
Constraint | 3 |
An enumeration that identifies the IdType of a NodeId.
Enum String | Enum Value | Description |
---|---|---|
Numeric | 0 | Numeric value |
String | 1 | String value |
Guid | 2 | Globally Unique Identifier |
Opaque | 3 | Namespace specific format |
An enumeration that identifies a NodeClass.
Enum String | Enum Value |
---|---|
Unspecified | 0 |
Object | 1 |
Variable | 2 |
Method | 4 |
ObjectType | 8 |
VariableType | 16 |
ReferenceType | 32 |
DataType | 64 |
View | 128 |
Defines a method input or output argument specification.
It is for example used in the input and output argument Properties for methods.
Field | DataType | ValueRank | Description |
---|---|---|---|
Name | String | Scalar | The name of the argument |
DataType | NodeId | Scalar | The NodeId of the DataType of this argument. |
ValueRank | Int32 | Scalar | Indicates whether the DataType is an array and how many dimensions the array has. More... |
ArrayDimensions | UInt32 | Array | Specifies the length of each dimension for an array dataType. More... |
Description | LocalizedText | Scalar | A localised description of the argument. |
Indicates whether the DataType is an array and how many dimensions the array has.
It may have the following values:
Specifies the length of each dimension for an array dataType.
It is intended to describe the capability of the DataType, not the current size.
The number of elements shall be equal to the value of the valueRank. Shall be null if valueRank ≦ 0.
A value of 0 for an individual dimension indicates that the dimension has a variable length.
A mapping between a value of an enumerated type and a name and description.
When this type is used in an array representing human readable representations of an enumeration, each Value shall be unique in that array.
Field | DataType | ValueRank | Description |
---|---|---|---|
Value | Int64 | Scalar | The Integer representation of an Enumeration. |
DisplayName | LocalizedText | Scalar | A human-readable representation of the Value of the Enumeration. |
Description | LocalizedText | Scalar | A localized description of the enumeration value. More... |
A localized description of the enumeration value.
This field can contain an empty string if no description is available.
This abstract DataType is the base DataType for all DataTypes representing a bit mask.
All OptionSet DataTypes representing bit masks shall inherit from this DataType.
The DataType Nodes representing concrete subtypes of the OptionSet shall have an OptionSetValues Property.
Field | DataType | ValueRank | Description |
---|---|---|---|
Value | ByteString | Scalar | Array of bytes representing the bits in the option set. More... |
ValidBits | ByteString | Scalar | Array of bytes with same size as value representing the valid bits in the value parameter. More... |
Array of bytes representing the bits in the option set.
The length of the ByteString depends on the number of bits.
Array of bytes with same size as value representing the valid bits in the value parameter.
When the Server returns the value to the Client, the ValidBits provides information of which bits in the bit mask have a meaning. When the Client passes the value to the Server, the ValidBits defines which bits should be written. Only those bits defined in ValidBits are changed in the bit mask, all others stay the same.
This abstract DataType is the base DataType for all union DataTypes.
The DataType is a subtype of Structure DataType. All DataTypes inheriting from this DataType have special handling for the encoding as defined in Part 6 of the OPC UA Specification. All union DataTypes shall inherit from this DataType.
The local time that may or may not take daylight saving time into account.
Field | DataType | ValueRank | Description |
---|---|---|---|
Offset | Int16 | Scalar | The offset in minutes from UtcTime. |
DaylightSavingInOffset | Boolean | Scalar | If TRUE, daylight saving time (DST) is in effect and offset includes the DST correction. More... |
If TRUE, daylight saving time (DST) is in effect and offset includes the DST correction.
If FALSE, the offset does not include the DST correction and DST may or may not have been in effect.
Contains elements that describe the build information of the Server.
Field | DataType | ValueRank | Description |
---|---|---|---|
ProductUri | String | Scalar | URI that identifies the software. |
ManufacturerName | String | Scalar | Name of the software manufacturer. |
ProductName | String | Scalar | Name of the software. |
SoftwareVersion | String | Scalar | Software version. |
BuildNumber | String | Scalar | Build number. |
BuildDate | DateTime | Scalar | Date and time of the build. |
Defines the redundancy support of the Server.
Enum String | Enum Value | Description |
---|---|---|
None | 0 | There is no redundancy support. |
Cold | 1 | The server supports cold redundancy as defined in Part 4 of the OPC UA Specification. |
Warm | 2 | The server supports warm redundancy as defined in Part 4 of the OPC UA Specification. |
Hot | 3 | The server supports hot redundancy as defined in Part 4 of the OPC UA Specification. |
Transparent | 4 | The server supports transparent redundancy as defined in Part 4 of the OPC UA Specification. |
HotAndMirrored | 5 | The server supports HotAndMirrored redundancy as defined in Part 4 of the OPC UA Specification. |
An enumeration that defines the execution state of the Server.
Enum String | Enum Value | Description |
---|---|---|
Running | 0 | The server is running normally. More... |
Failed | 1 | A vendor-specific fatal error has occurred within the server. More... |
NoConfiguration | 2 | The server is running but has no configuration information loaded and therefore does not transfer data. |
Suspended | 3 | The server has been temporarily suspended by some vendor-specific method and is not receiving or sending data. |
Shutdown | 4 | The server has shut down or is in the process of shutting down. More... |
Test | 5 | The server is in Test Mode. More... |
CommunicationFault | 6 | The server is running properly, but is having difficulty accessing data from its data sources. More... |
Unknown | 7 | This state is used only to indicate that the OPC UA server does not know the state of underlying servers. |
The server is running normally.
This is the usual state for a server.
A vendor-specific fatal error has occurred within the server.
The server is no longer functioning. The recovery procedure from this situation is vendor-specific. Most Service requests should be expected to fail.
The server has shut down or is in the process of shutting down.
Depending on the implementation, this might or might not be visible to clients.
The server is in Test Mode.
The outputs are disconnected from the real hardware, but the server will otherwise behave normally. Inputs may be real or may be simulated depending on the vendor implementation. StatusCode will generally be returned normally.
The server is running properly, but is having difficulty accessing data from its data sources.
This may be due to communication problems or some other problem preventing the underlying device, control system, etc. from returning valid data. It may be a complete failure, meaning that no data is available, or a partial failure, meaning that some data is still available. It is expected that items affected by the fault will individually return with a BAD FAILURE status code indication for the items.
Contains elements that describe the status of the Server.
Field | DataType | ValueRank | Description |
---|---|---|---|
ServerId | String | Scalar | The Id of the server (not the URI). |
ServiceLevel | Byte | Scalar | The service level of the server. |
ServerState | ServerState | Scalar | The current state of the server. |
Structure representing a list of URLs of an Endpoint.
Field | DataType | ValueRank | Description |
---|---|---|---|
EndpointUrlList | String | Array | List of URLs of an Endpoint. |
Contains information on different network paths for one Server.
Field | DataType | ValueRank | Description |
---|---|---|---|
ServerUri | String | Scalar | URI of the Server represented by the network group. |
NetworkPaths | EndpointUrlListDataType | Array | Array of different network paths to the server, for example provided by different network cards in a Server node. More... |
Array of different network paths to the server, for example provided by different network cards in a Server node.
Each network path can have several Endpoints representing different protocol options for the same path.
Contains diagnostic information about the sampling rates currently used by the Server.
Field | DataType | ValueRank |
---|---|---|
SamplingInterval | Double | Scalar |
MonitoredItemCount | UInt32 | Scalar |
MaxMonitoredItemCount | UInt32 | Scalar |
DisabledMonitoredItemCount | UInt32 | Scalar |
Contains diagnostic summary information for the Server.
Field | DataType | ValueRank | Description |
---|---|---|---|
ServerViewCount | UInt32 | Scalar | The number of server-created views in the server. |
CurrentSessionCount | UInt32 | Scalar | The number of client sessions currently established in the server. |
CumulatedSessionCount | UInt32 | Scalar | The cumulative number of client sessions that have been established in the server since the server was started (or restarted). More... |
SecurityRejectedSessionCount | UInt32 | Scalar | The number of client session establishment requests that were rejected due to security constraints since the server was started (or restarted). |
RejectedSessionCount | UInt32 | Scalar | The number of client session establishment requests that were rejected since the server was started (or restarted). More... |
SessionTimeoutCount | UInt32 | Scalar | The number of client sessions that were closed due to timeout since the server was started (or restarted). |
SessionAbortCount | UInt32 | Scalar | The number of client sessions that were closed due to errors since the server was started (or restarted). |
CurrentSubscriptionCount | UInt32 | Scalar | The number of subscriptions currently established in the server. |
CumulatedSubscriptionCount | UInt32 | Scalar | The cumulative number of subscriptions that have been established in the server since the server was started (or restarted). More... |
PublishingIntervalCount | UInt32 | Scalar | The number of publishing intervals currently supported in the server. |
SecurityRejectedRequestsCount | UInt32 | Scalar | The number of requests that were rejected due to security constraints since the server was started (or restarted). More... |
RejectedRequestsCount | UInt32 | Scalar | The number of requests that were rejected since the server was started (or restarted). More... |
The cumulative number of client sessions that have been established in the server since the server was started (or restarted).
This includes the currentSessionCount.
The number of client session establishment requests that were rejected since the server was started (or restarted).
This number includes the securityRejectedSessionCount.
The cumulative number of subscriptions that have been established in the server since the server was started (or restarted).
This includes the currentSubscriptionCount.
The number of requests that were rejected due to security constraints since the server was started (or restarted).
The requests include all Services defined in Part 4 of the OPC UA Specification, also requests to create sessions.
The number of requests that were rejected since the server was started (or restarted).
The requests include all Services defined in Part 4 of the OPC UA Specification, also requests to create sessions. This number includes the securityRejectedRequestsCount.
Contains elements that describe the status of the Server.
Field | DataType | ValueRank | Description |
---|---|---|---|
StartTime | DateTime | Scalar | Time (UTC) the server was started. More... |
CurrentTime | DateTime | Scalar | The current time (UTC) as known by the server. |
State | ServerState | Scalar | The current state of the server. |
BuildInfo | BuildInfo | Scalar | Build information of the server. |
SecondsTillShutdown | UInt32 | Scalar | Approximate number of seconds until the server will be shut down. More... |
ShutdownReason | LocalizedText | Scalar | An optional localized text indicating the reason for the shutdown. More... |
Time (UTC) the server was started.
This is constant for the server instance and is not reset when the server changes state. Each instance of a server should keep the time when the process started.
Approximate number of seconds until the server will be shut down.
The value is only relevant once the state changes into SHUTDOWN.
An optional localized text indicating the reason for the shutdown.
The value is only relevant once the state changes into SHUTDOWN.
Contains diagnostic information about client sessions.
Most of the values represented in this structure provide information about the number of calls of a Service, the number of currently used MonitoredItems, etc. Those numbers need not provide the exact value; they need only provide the approximate number, so that the Server is not burdened with providing the exact numbers.
Field | DataType | ValueRank | Description |
---|---|---|---|
SessionId | NodeId | Scalar | Server-assigned identifier of the session. |
SessionName | String | Scalar | The name of the session provided in the CreateSession request. |
ClientDescription | ApplicationDescription | Scalar | The description provided by the client in the CreateSession request. |
ServerUri | String | Scalar | The serverUri request in the CreateSession request. |
EndpointUrl | String | Scalar | The endpointUrl passed by the client to the CreateSession request. |
LocaleIds | String | Array | Array of LocaleIds specified by the client in the open session call. |
ActualSessionTimeout | Double | Scalar | The requested session timeout specified by the client in the open session call. |
MaxResponseMessageSize | UInt32 | Scalar | The maximum size for the response message sent to the client. |
ClientConnectionTime | DateTime | Scalar | The server timestamp when the client opens the session. |
ClientLastContactTime | DateTime | Scalar | The server timestamp of the last request of the client in the context of the session. |
CurrentSubscriptionsCount | UInt32 | Scalar | The number of subscriptions currently used by the session. |
CurrentMonitoredItemsCount | UInt32 | Scalar | The number of MonitoredItems currently used by the session. |
CurrentPublishRequestsInQueue | UInt32 | Scalar | The number of publish timer expirations when there are data to be sent, but there are no publish requests for this session. More... |
TotalRequestCount | ServiceCounterDataType | Scalar | Counter of allServices, identifying the number of received requests of any Services on the session. |
UnauthorizedRequestCount | UInt32 | Scalar | Counter of all Services, identifying the number of Service requests that were rejected due to authorization failure. |
ReadCount | ServiceCounterDataType | Scalar | Counter of the Read Service, identifying the number of received requests of this Service on the session. |
HistoryReadCount | ServiceCounterDataType | Scalar | Counter of the HistoryRead Service, identifying the number of received requests of this Service on the session. |
WriteCount | ServiceCounterDataType | Scalar | Counter of the Write Service, identifying the number of received requests of this Service on the session. |
HistoryUpdateCount | ServiceCounterDataType | Scalar | Counter of the HistoryUpdate Service, identifying the number of received requests of this Service on the session. |
CallCount | ServiceCounterDataType | Scalar | Counter of the Call Service, identifying the number of received requests of this Service on the session. |
CreateMonitoredItemsCount | ServiceCounterDataType | Scalar | Counter of the CreateMonitoredItems Service, identifying the number of received requests of this Service on the session. |
ModifyMonitoredItemsCount | ServiceCounterDataType | Scalar | Counter of the ModifyMonitoredItems Service, identifying the number of received requests of this Service on the session. |
SetMonitoringModeCount | ServiceCounterDataType | Scalar | Counter of the SetMonitoringMode Service, identifying the number of received requests of this Service on the session. |
SetTriggeringCount | ServiceCounterDataType | Scalar | Counter of the SetTriggering Service, identifying the number of received requests of this Service on the session. |
DeleteMonitoredItemsCount | ServiceCounterDataType | Scalar | Counter of the DeleteMonitoredItems Service, identifying the number of received requests of this Service on the session. |
CreateSubscriptionCount | ServiceCounterDataType | Scalar | Counter of the CreateSubscription Service, identifying the number of received requests of this Service on the session. |
ModifySubscriptionCount | ServiceCounterDataType | Scalar | Counter of the ModifySubscription Service, identifying the number of received requests of this Service on the session. |
SetPublishingModeCount | ServiceCounterDataType | Scalar | Counter of the SetPublishingMode Service, identifying the number of received requests of this Service on the session. |
PublishCount | ServiceCounterDataType | Scalar | Counter of the Publish Service, identifying the number of received requests of this Service on the session. |
RepublishCount | ServiceCounterDataType | Scalar | Counter of the Republish Service, identifying the number of received requests of this Service on the session. |
TransferSubscriptionsCount | ServiceCounterDataType | Scalar | Counter of the TransferSubscriptions Service, identifying the number of received requests of this Service on the session. |
DeleteSubscriptionsCount | ServiceCounterDataType | Scalar | Counter of the DeleteSubscriptions Service, identifying the number of received requests of this Service on the session. |
AddNodesCount | ServiceCounterDataType | Scalar | Counter of the AddNodes Service, identifying the number of received requests of this Service on the session. |
AddReferencesCount | ServiceCounterDataType | Scalar | Counter of the AddReferences Service, identifying the number of received requests of this Service on the session. |
DeleteNodesCount | ServiceCounterDataType | Scalar | Counter of the DeleteNodes Service, identifying the number of received requests of this Service on the session. |
DeleteReferencesCount | ServiceCounterDataType | Scalar | Counter of the DeleteReferences Service, identifying the number of received requests of this Service on the session. |
BrowseCount | ServiceCounterDataType | Scalar | Counter of the Browse Service, identifying the number of received requests of this Service on the session. |
BrowseNextCount | ServiceCounterDataType | Scalar | Counter of the BrowseNext Service, identifying the number of received requests of this Service on the session. |
TranslateBrowsePathsToNodeIdsCount | ServiceCounterDataType | Scalar | Counter of the TranslateBrowsePathsToNodeIds Service, identifying the number of received requests of this Service on the session. |
QueryFirstCount | ServiceCounterDataType | Scalar | Counter of the QueryFirst Service, identifying the number of received requests of this Service on the session. |
QueryNextCount | ServiceCounterDataType | Scalar | Counter of the QueryNext Service, identifying the number of received requests of this Service on the session. |
RegisterNodesCount | ServiceCounterDataType | Scalar | Counter of the RegisterNodes Service, identifying the number of received requests of this Service on the session. |
UnregisterNodesCount | ServiceCounterDataType | Scalar | Counter of the UnregisterNodesService, identifying the number of received requests of this Service on the session. |
The number of publish timer expirations when there are data to be sent, but there are no publish requests for this session.
The value shall be 0 if there are no data to be sent or publish requests queued.
contains security-related diagnostic information about client sessions.
Because this information is security-related, it should not be made accessible to all users, but only to authorised users.
Field | DataType | ValueRank | Description |
---|---|---|---|
SessionId | NodeId | Scalar | Server-assigned identifier of the session. |
ClientUserIdOfSession | String | Scalar | Name of authenticated user when creating the session. |
ClientUserIdHistory | String | Array | Array containing the name of the authenticated user currently active (either from creating the session or from calling the ActivateSession Service) and the history of those names. More... |
AuthenticationMechanism | String | Scalar | Type of authentication currently used by the session. The string shall be one of the UserIdentityTokenType enum. |
Encoding | String | Scalar | Which encoding is used on the wire. More... |
TransportProtocol | String | Scalar | Which transport protocol is used. More... |
SecurityMode | MessageSecurityMode | Scalar | The message security mode used for the session. |
SecurityPolicyUri | String | Scalar | The name of the security policy used for the session. |
ClientCertificate | ByteString | Scalar | The application instance certificate provided by the client in the CreateSession request. |
Array containing the name of the authenticated user currently active (either from creating the session or from calling the ActivateSession Service) and the history of those names.
Each time the active user changes, an entry shall be made at the end of the array. The active user is always at the end of the array. Servers may restrict the size of this array, but shall support at least a size of 2.
Which encoding is used on the wire.
The string shall be “XML” or “UA Binary”.
Which transport protocol is used.
The string shall be the scheme from the URL used to establish the session, for example “opc.tcp” or “https”.
Contains diagnostic information about subscriptions.
Field | DataType | ValueRank | Description |
---|---|---|---|
TotalCount | UInt32 | Scalar | The number of Service requests that have been received. |
ErrorCount | UInt32 | Scalar | The total number of Service requests that were rejected. |
Contains diagnostic information about subscriptions.
Field | DataType | ValueRank | Description |
---|---|---|---|
SessionId | NodeId | Scalar | Server-assigned identifier of the session the subscription belongs to. |
SubscriptionId | UInt32 | Scalar | Server-assigned identifier of the subscription. |
Priority | Byte | Scalar | The priority the client assigned to the subscription. |
PublishingInterval | Double | Scalar | The publishing interval of the subscription in milliseconds. |
MaxKeepAliveCount | UInt32 | Scalar | The maximum keep-alive count of the subscription. |
MaxLifetimeCount | UInt32 | Scalar | The maximum lifetime count of the subscription. |
MaxNotificationsPerPublish | UInt32 | Scalar | The maximum number of notifications per publish response. |
PublishingEnabled | Boolean | Scalar | Whether publishing is enabled for the subscription. |
ModifyCount | UInt32 | Scalar | The number of ModifySubscription requests received for the subscription. |
EnableCount | UInt32 | Scalar | The number of times the subscription has been enabled. |
DisableCount | UInt32 | Scalar | The number of times the subscription has been disabled. |
RepublishRequestCount | UInt32 | Scalar | The number of Republish Service requests that have been received and processed for the subscription. |
RepublishMessageRequestCount | UInt32 | Scalar | The total number of messages that have been requested to be republished for the subscription. More... |
RepublishMessageCount | UInt32 | Scalar | The number of messages that have been successfully republished for the subscription. |
TransferRequestCount | UInt32 | Scalar | The total number of TransferSubscriptions Service requests that have been received for the subscription. |
TransferredToAltClientCount | UInt32 | Scalar | The number of times the subscription has been transferred to an alternate client. |
TransferredToSameClientCount | UInt32 | Scalar | The number of times the subscription has been transferred to an alternate session for the same client. |
PublishRequestCount | UInt32 | Scalar | The number of Publish Service requests that have been received and processed for the subscription. |
DataChangeNotificationsCount | UInt32 | Scalar | The number of data change Notifications sent by the subscription. |
EventNotificationsCount | UInt32 | Scalar | The number of Event Notifications sent by the subscription. |
NotificationsCount | UInt32 | Scalar | The total number of Notifications sent by the subscription. |
LatePublishRequestCount | UInt32 | Scalar | The number of times the subscription has entered the LATE State, i.e. the number of times the publish timer expires and there are unsent notifications. |
CurrentKeepAliveCount | UInt32 | Scalar | The number of times the subscription has entered the KEEPALIVE State. |
CurrentLifetimeCount | UInt32 | Scalar | The current lifetime count of the subscription. |
UnacknowledgedMessageCount | UInt32 | Scalar | The number of unacknowledged messages saved in the republish queue. |
DiscardedMessageCount | UInt32 | Scalar | The number of messages that were discarded before they were acknowledged. |
MonitoredItemCount | UInt32 | Scalar | The total number of monitored items of the subscription, including the disabled monitored items. |
DisabledMonitoredItemCount | UInt32 | Scalar | The number of disabled monitored items of the subscription. |
MonitoringQueueOverflowCount | UInt32 | Scalar | The number of times a monitored item dropped notifications because of a queue overflow. |
NextSequenceNumber | UInt32 | Scalar | Sequence number for the next notification message. |
EventQueueOverFlowCount | UInt32 | Scalar | The number of times a monitored item in the subscription has generated an Event of type EventQueueOverflowEventType. |
The total number of messages that have been requested to be republished for the subscription.
Note that due to the design of the Republish Service this number is always equal to the republishRequestCount.
Contains elements that describe changes of the model.
Field | DataType | ValueRank | Description |
---|---|---|---|
Affected | NodeId | Scalar | NodeId of the Node that was changed. More... |
AffectedType | NodeId | Scalar | If the affected Node was an object or Variable, affectedType contains the NodeId of the TypeDefinitionNode of the affected Node. Otherwise it is set to null. |
Verb | Byte | Scalar | Describes the changes happening to the affected Node. More... |
NodeId of the Node that was changed.
The client should assume that the affected Node has been created or deleted, had a Reference added or deleted, or the DataType has changed as described by the verb.
Describes the changes happening to the affected Node.
The verb is an 8-bit unsigned integer used as bit mask with the structure defined in the following table:
Field | Bit | Description |
---|---|---|
NodeAdded | 0 | Indicates the affected Node has been added. |
NodeDeleted | 1 | Indicates the affected Node has been deleted. |
ReferenceAdded | 2 | Indicates a Reference has been added. The affected Node may be either a SourceNode or TargetNode. Note that an added bidirectional Reference is reflected by two ChangeStructures. |
ReferenceDeleted | 3 | Indicates a Reference has been deleted. The affected Node may be either a SourceNode or TargetNode. Note that a deleted bidirectional Reference is reflected by two ChangeStructures. |
DataTypeChanged | 4 | This verb may be used only for affected Nodes that are Variables or VariableTypes. It indicates that the DataType Attribute has changed. |
Reserved | 5:7 | Reserved for future use. Shall always be zero. |
A verb may identify several changes on the affected Node at once. This feature should be used if event compression is used.
Note that all verbs shall always be considered in the context where the ModelChangeStructureDataType is used. A NodeDeleted may indicate that a Node was removed from a view but still exists in other Views.
Contains elements that describe a change of the model.
Field | DataType | ValueRank | Description |
---|---|---|---|
Affected | NodeId | Scalar | NodeId of the Node that owns the Property that has changed. |
AffectedType | NodeId | Scalar | If the affected Node was an object or Variable, affectedType contains the NodeId of the TypeDefinitionNode of the affected Node. More... |
If the affected Node was an object or Variable, affectedType contains the NodeId of the TypeDefinitionNode of the affected Node.
Otherwise it is set to null.