Reference
OpcAutomatism Members
Defines the behavior of global automatisms implemented in the OPC UA Framework Advanced.
Reference
OpcAutomatism Members
- Type
- OpcAutomatism
- Namespace
- Opc.UaFx
- Assembly
- Opc.UaFx.Advanced.dll
- Package
- Opc.UaFx.Advanced v2.59.0
- Also in
- Opc.UaFx.Client
Properties
AlwaysParseStringIdentifiers
Gets or sets a value indicating whether a new instance of the OpcNodeId, which is created using a string as the Value, have to automatically parse the string passed to the constructor.
public static bool AlwaysParseStringIdentifiers { get; set; }Public Shared Property AlwaysParseStringIdentifiers As BooleanProperty value
The value true if the string passed as the Value is to be parsed automatically to determine any namespace information encoded in the string; otherwise the value false. The default value is false (since version 2.9.0.0).
Remarks
The logic behind this option is legacy and is obsolete. Beginning with version 2.9.0.0 the old automatism (parsing the node identifier value within the constructor) is only enabled if this property is set to the value true. It is recommended to port user code to take aware that the OpcNodeId uses any string passed as its Value and will not longer automatically inline parse the value for more flexibility. Is such a logic required then the node identifier is to be parsed by user code to have more transparency.
AssignDefaultNamespaceOfManager
Gets or sets a value indicating whether the OpcNodeManager base shall ensure that instances created through CreateNodes do not reference a namespace equals to the Default namespace. In cases there the default namespace is referenced by the Id and the Name property of an object implementing the IOpcNode interface they are automatically adjusted to use the DefaultNamespace of their OpcNodeManager instead.
public static bool AssignDefaultNamespaceOfManager { get; set; }Public Shared Property AssignDefaultNamespaceOfManager As BooleanProperty value
The value true if the Namespace of the Id property and the Namespace of the Name property of all IOpcNode instances is to be verified and adjusted to use the DefaultNamespace of their OpcNodeManager; otherwise the value false. The default value is true.
Remarks
Changing this property to the value false may improve the startup performance, but also requires manual ensurance of valid OpcNamespace references in OpcName and OpcNodeId instances assigned to the properties of an object implementing the IOpcNode interface.
RaiseModelChangeEvents
Gets or sets a value indicating whether model changes (see OpcModelChangeActions for the change actions supported) are to be tracked and reported for nodes in non-foundation namespaces.
public static bool RaiseModelChangeEvents { get; set; }Public Shared Property RaiseModelChangeEvents As BooleanProperty value
The value true if model changes are to be tracked and reported according the different OpcModelChangeActions supported; otherwise the value false (the default value) to disable tracking and reporting of model changes.
Remarks
If the value of this property is equals true the application will generate OpcGeneralModelChange events for every OpcModelChangeActions performed in the address space. This behaviour can be controlled in detail per node using the methods SuspendModelChangeEvents and ResumeModelChangeEvents.
UseAsyncMethodCalls
Gets or sets a value indicating whether all OpcServer objects shall process every method call asynchronously using one worker thread per method call.
public static bool UseAsyncMethodCalls { get; set; }Public Shared Property UseAsyncMethodCalls As BooleanProperty value
The value true if every method call is to be processed parallel to each other; otherwise the value false to process method calls in their sequence. The default value is false.
Remarks
This behavior can be controlled by each node manager on its own. Just override the UseAsyncMethodCalls property and provide the value true in the node managers which shall process method calls in parallel.
Every OpcMethodNode defined with a delegate to a method its return value provides a Task is already processed in parallel.
UseDynamic
Gets or sets a value indicating whether the SDK shall use generic types to define and represent OPC UA custom types. To do so OPC UA client applications will determine the necessary type information from the server directly after a connection to the server has been established. OPC UA server applications will support the dynamic definition of type information during the run-time.
public static bool UseDynamic { get; set; }Public Shared Property UseDynamic As BooleanProperty value
The value true if the SDK shall use generic types constructed from the type information offered by a server and support dynamic type definition in a server; otherwise the value false. The default value is false.
UseDynamicTypeRegistration
Gets or sets a value indicating whether OpcTypes shall automatically registered by the SDK during the first startup of an OPC UA application start up. Such a startup means in case of a client application that a client will register application defined types on its own before connecting to a server. In case of a server application the server will register application defined types on its own during its startup.
public static bool UseDynamicTypeRegistration { get; set; }Public Shared Property UseDynamicTypeRegistration As BooleanProperty value
The value true if application defined types shall automatically registered by the SDK whenever a client application connects to a server or a server starts up for the first time. The default value is true.
UseNodeNameAsDefaultDescription
Gets or sets a value indicating whether the OpcNode shall initialize the Description attribute with the Value of the Name attribute.
public static bool UseNodeNameAsDefaultDescription { get; set; }Public Shared Property UseNodeNameAsDefaultDescription As BooleanProperty value
The value true to initialize the Description with the Value of the Name; otherwise the value false. The default value is false.
UseNodeNameAsDefaultSymbolicName
Gets or sets a value indicating whether the OpcNode shall initialize the SymbolicName property with the Value of the Name attribute.
public static bool UseNodeNameAsDefaultSymbolicName { get; set; }Public Shared Property UseNodeNameAsDefaultSymbolicName As BooleanProperty value
The value true to initialize the SymbolicName with the Value of the Name; otherwise the value false. The default value is false.
UseNonGenericNodeInstances
Gets or sets a value indicating whether the OpcNodeManager shall import OpcNodeSets by either creating generic base instances for every node in the nodeset defined or creating the best available implementation of the type definition a node in the nodeset points to.
public static bool UseNonGenericNodeInstances { get; set; }Public Shared Property UseNonGenericNodeInstances As BooleanProperty value
The value true if the best available implementation of the type definition a node in the nodeset points to is to be created for the node during the import of the OpcNodeSets; otherwise the value false to create generic base instances for every node instead. The default value is false.
Remarks
The 'best available implementation of a type definition' means, that e.g. 'MyFiniteStateMachine' is referenced in the OpcNodeSet however there exists no (creatable) implementation of that type definition. Therefore the creation will fall back to the base type definition. In this case this would be 'FiniteStateMachine' and will look up an implementation for that type definition.
UseNullInsteadOfEmptyArrays
Gets or sets a value indicating whether a null reference (Nothing in Visual Basic) is supported in the getters of several array / list / collection properties. A null reference (Nothing in Visual Basic) is encoded using an array size equals -1; an empty array / list / collection is encoded using an array size equals zero.
public static bool UseNullInsteadOfEmptyArrays { get; set; }Public Shared Property UseNullInsteadOfEmptyArrays As BooleanProperty value
The value true if several array / list / collection properties support a null reference (Nothing in Visual Basic); otherwise the value false. The default value is false.
Remarks
The array / list / collection properties affected are: ArrayDimensions (ArrayDimensions), ArrayDimensions (ArrayDimensions), Elements (Elements) and NodePath (BrowsePath).