Class implementing the UaObject interface for the FiniteStateMachineType. More...

#include <opcua_finitestatemachinetype.h>

Inherited by OpcUa::ExclusiveLimitStateMachineType, OpcUa::ProgramStateMachineTypeBase, and OpcUa::ShelvedStateMachineTypeBase.

Public Member Functions
	FiniteStateMachineType (const UaNodeId &nodeId, UaObject pInstanceDeclarationObject, NodeManagerConfig pNodeConfig, UaMutexRefCounted *pSharedMutex=NULL)
	Construction of the class FiniteStateMachineType. More...

	FiniteStateMachineType (const UaNodeId &nodeId, const UaString &name, OpcUa_UInt16 browseNameNameSpaceIndex, NodeManagerConfig pNodeConfig, UaMutexRefCounted pSharedMutex=NULL)
	Construction of the class FiniteStateMachineType. More...

	FiniteStateMachineType (UaBase::Object pBaseNode, XmlUaNodeFactoryManager pFactory, NodeManagerConfig pNodeConfig, UaMutexRefCounted pSharedMutex=NULL)
	Constructs an instance of the class FiniteStateMachineType with all components. More...

virtual UaNodeId	typeDefinitionId () const
	Returns the type definition NodeId for the FiniteStateMachineType.

virtual void	setCurrentState (const UaLocalizedText &currentState)
	Sets the CurrentState. More...

virtual UaLocalizedText	getCurrentState (Session *pSession)
	Gets the CurrentState. More...

virtual void	setLastTransition (const UaLocalizedText &lastTransition)
	Sets the LastTransition. More...

virtual UaLocalizedText	getLastTransition (Session *pSession)
	Gets the LastTransition. More...

virtual OpcUa::FiniteStateVariableType *	getCurrentStateNode ()
	Returns the CurrentState node. More...

virtual OpcUa::FiniteTransitionVariableType *	getLastTransitionNode ()
	Returns the LastTransition node. More...

virtual void	useAccessInfoFromType ()
	Applys the NodeAccessInfo set at the FiniteStateMachineType and its children. More...

void	useAccessInfoFromInstance (FiniteStateMachineType *pInstance)
	Uses the NodeAccessInfo of pOther and its children. More...

Public Member Functions inherited from OpcUa::BaseObjectType
	BaseObjectType (const UaNodeId &nodeId, UaObject pInstanceDeclarationObject, NodeManagerConfig pNodeConfig, UaMutexRefCounted *pSharedMutex=NULL)
	Construction of the class BaseObjectType. More...

	BaseObjectType (const UaNodeId &nodeId, const UaString &name, OpcUa_UInt16 browseNameNameSpaceIndex, NodeManagerConfig pNodeConfig, UaMutexRefCounted pSharedMutex=NULL)
	Construction of the class BaseObjectType. More...

UaReferenceLists *	getUaReferenceLists () const
	Get the UaReferenceLists interface for the node. More...

virtual UaStatus	browse (const ServiceContext &serviceContext, BrowseContext &browseContext, UaReferenceDescriptions &References)
	Discover the references of a specified node of a view. More...

UaNodeId	nodeId () const
	Get the NodeId of the current Node. More...

virtual UaQualifiedName	browseName () const
	Get the browseName of the current Node. More...

virtual UaLocalizedText	displayName (Session *pSession) const
	Get the displayName as LocalizedText of the current Node. More...

virtual OpcUa_Boolean	isDescriptionSupported () const
	Check if Node is DescriptionSupported. More...

virtual UaLocalizedText	description (Session *pSession) const
	Get the description as LocalizedText of the current Node. More...

virtual OpcUa_Boolean	isWriteMaskSupported () const
	Check if Node is WriteMaskSupported. More...

virtual OpcUa_UInt32	writeMask () const
	Get the writeMask of the current Node. More...

virtual OpcUa_Boolean	isUserWriteMaskSupported () const
	Check if Node is UserWriteMaskSupported. More...

virtual OpcUa_UInt32	userWriteMask (Session *pSession) const
	Check if Node has a userWriteMask. More...

UaNode *	getUaNode () const
	Get the UaNode interface pointer of this node. More...

virtual OpcUa_Byte	eventNotifier () const
	Returns the EventNotifier for the BaseObjectType. More...

virtual MethodManager *	getMethodManager (UaMethod *pMethod) const
	Returns the method manager interface for the BaseObjectType instance. More...

virtual void	setUserData (UserDataBase *pUserData)
	Method to set user data stored in this class. More...

virtual UserDataBase *	getUserData () const
	Method to get the user data stored in this class. More...

virtual void	setBrowseName (const UaQualifiedName &browseName)
	Sets the browse name attribute value. More...

virtual void	setDisplayName (const UaLocalizedText &displayName)
	Sets the display name attribute value. More...

virtual void	setDescription (const UaLocalizedText &description)
	Sets the description attribute value. More...

virtual void	setWriteMask (OpcUa_UInt32 writeMask)
	Sets the write mask attribute value. More...

virtual void	setEventNotifier (OpcUa_Byte eventNotifier)
	Sets the eventNotifier attribute value. More...

virtual void	setModellingRuleId (const UaNodeId &modellingRuleId)
	Set NodeId of the modeling rule for this node. More...

virtual UaNodeId	modellingRuleId () const
	Get NodeId of the modeling rule for this node. More...

void	setMethodManager (MethodManager *pMethodManager)
	Allows a class aggregating the object to implement the MethodManager for this object. More...

virtual UaStatus	setAttributeValue (Session *pSession, OpcUa_Int32 attributeId, const UaDataValue &dataValue, OpcUa_Boolean checkWriteMask)
	Sets the value of an attribute of the Node. More...

virtual UaStatus	beginCall (MethodManagerCallback pCallback, const ServiceContext &serviceContext, OpcUa_UInt32 callbackHandle, MethodHandle pMethodHandle, const UaVariantArray &inputArguments)
	Implementation of the MethodManager interface method beginCall.

virtual UaStatus	call (const ServiceContext &serviceContext, MethodHandle *pMethodHandle, const UaVariantArray &inputArguments, UaVariantArray &outputArguments, UaStatusCodeArray &inputArgumentResults, UaDiagnosticInfos &inputArgumentDiag)
	Synchronous version of the MethodManager method call executed in a worker thread.

Public Member Functions inherited from MethodManager
	MethodManager ()
	construction

virtual	~MethodManager ()
	destruction

Public Member Functions inherited from UaObject
	UaObject ()
	Construction of the UaObject. More...

OpcUa_NodeClass	nodeClass () const
	Get the node class of the Node. More...

virtual void	getAttributeValue (Session *pSession, OpcUa_Int32 attributeId, UaDataValue &uaDataValue)
	Gets the value of an attribute of the Node. More...

Public Member Functions inherited from UaNode
	UaNode ()
	Construction of the UaNode. More...

virtual UaNodeId	getKey () const
	Get the key of the node used for the hash table. More...

const NodeAccessInfo *	getAccessInfo () const
	Returns the access info for this node. More...

void	useAccessInfoFrom (const UaNode *pOther)
	Set the NodeAccessInfo from another node to this node. More...

void	setAccessInfo (NodeAccessInfo *pAccessInfo)
	Set the NodeAccessInfo for this node. More...

void	attachAccessInfo (NodeAccessInfo *pAccessInfo)
	Set the NodeAccessInfo for this node. More...

Public Member Functions inherited from ChainEntry
	ChainEntry ()
	construction

ChainEntry *	find (const UaNodeId &key, ChainEntry **ppPrevious)
	finds the right entry in the chain. More...

void	add (ChainEntry *pNewEntry)
	adds a new entry to the list. More...

void	prepend (ChainEntry *pNewEntry)
	prepends a new entry to the list. More...

ChainEntry *	remove (const UaNodeId &key, ChainEntry **ppNext)
	removes an entry from the list. More...

ChainEntry *	getNext () const
	Check if there is a chain. More...

virtual void	setInvalid ()
	Set the entry to invalid. More...

void	clearChain ()
	Clear the chain when the hashtable is cleared.

Public Member Functions inherited from ReferenceCounter
	ReferenceCounter ()
	construction

virtual	~ReferenceCounter ()
	destruction

Public Member Functions inherited from UaReferenceLists
	UaReferenceLists ()
	Constructs the reference lists object.

virtual	~UaReferenceLists ()
	Destroys the reference lists object.

virtual UaStatus	browseReferences (const ServiceContext &serviceContext, BrowseContext &browseContext, UaReferenceDescriptions &References)
	Discover the references of a specified node of a view. More...

virtual UaStatus	translateBrowsePathToNodeId (const ServiceContext &serviceContext, const UaNodeId &startingNode, UaRelativePath &relativePath, UaBrowsePathTargets &browsePathTargets)
	Find a node based on an element of an relative path. More...

virtual const UaReference *	pTargetNodes () const
	Returns the list of references to target nodes. More...

virtual const UaReference *	pSourceNodes () const
	Returns the list of references to source nodes. More...

virtual UaNode *	getTargetNodeByBrowseName (const UaQualifiedName &browseName) const
	Searches a target node with the passed browse name and returns the UaNode interface if found. More...

virtual void	addTargetNode (UaReference *pReference)
	Add a reference to a target node where this node is the source node. More...

virtual void	addSourceNode (UaReference *pReference)
	Adds a reference to a source node where this node is the target node. More...

virtual UaStatus	removeSourceNode (UaReference *pReferenceToRemove)
	Remove a reference to a source node where this node is the target node. More...

virtual bool	removeSourceReference (UaReference *pReferenceToRemove)
	Remove the passed reference to a source node. More...

virtual UaStatus	removeTargetNode (UaNode *pTargetNode, const UaNodeId &referenceTypeId, OpcUa_Boolean deleteBidirectional)
	Remove a reference to a target node where this node is the source node. More...

virtual UaStatus	removeTargetNode (const UaNodeId &targetNodeId, const UaNodeId &referenceTypeId, OpcUa_Boolean deleteBidirectional)
	Remove a reference to a target node where this node is the source node. More...

virtual bool	removeTargetReference (UaReference *pReferenceToRemove)
	Remove the passed reference to a target node. More...

virtual UaStatus	removeCrossNodeManagerRef (NodeManager *pNodeManager)
	Remove references to another NodeManager. More...

virtual UaStatus	invalidateSourceReferences (OpcUa_Boolean deleteSourceReferences)
	Set all references from SourceNodes to this Node invalid. More...

virtual UaStatus	invalidateTargetReferences (OpcUa_Boolean deleteTargetReferences)
	Set all references to TargetNode of this node invalid. More...

virtual UaStatus	deleteAllChildren (NodeManagerConfig *pNodeManagerConfig)
	Deletes all child nodes. More...

Static Public Member Functions
static void	createTypes ()
	Create the related type nodes.

static void	clearStaticMembers ()
	Clear the static members of the class.

Static Public Member Functions inherited from OpcUa::BaseObjectType
static void	clearStaticMembers ()
	Clear the static members of the class.

Protected Member Functions
virtual	~FiniteStateMachineType ()
	Destruction.

Protected Member Functions inherited from OpcUa::BaseObjectType
virtual	~BaseObjectType ()
	Destruction of the BaseObjectType. More...

Protected Member Functions inherited from UaObject
virtual	~UaObject ()
	Destruction of the UaObject. More...

Protected Member Functions inherited from UaNode
virtual	~UaNode ()
	Destruction of the UaNode. More...

Protected Member Functions inherited from ChainEntry
virtual	~ChainEntry ()
	destruction

Additional Inherited Members
Protected Attributes inherited from UaReferenceLists
UaReference *	m_pTargetNodes
	List of references to target nodes where this node is the source node. More...

UaReference *	m_pLastTargetNode
	Last references in the list of references to the target nodes. More...

UaReference *	m_pSourceNodes
	List of references to source nodes where this node is the target node. More...

Detailed Description

Class implementing the UaObject interface for the FiniteStateMachineType.

OPC UA Objects are used to represent systems, system components, real-world objects and software objects. They have the NodeClass Object. The detailed description of Objects and their attributes can be found in the general description of the Object node class.

Variable members of the FiniteStateMachineType:

Browse Name	DataType	TypeDefinition	Modelling Rule	See Also
CurrentState	LocalizedText	FiniteStateVariableType	Mandatory	getCurrentState, setCurrentState
LastTransition	LocalizedText	FiniteTransitionVariableType	Optional	getLastTransition, setLastTransition

The FiniteStateMachineType is the base ObjectType for state machines that explicitly define the possible states and transitions.

Once the states are defined, subtypes shall not add new states.

The states of the machine are represented with instances of the StateType ObjectType. Each state shall have a BrowseName which is unique within the state machine and shall have a StateNumber which shall also be unique across all states defined in the state machine. Be aware that states in a sub-state machine may have the same StateNumber or BrowseName as states in the parent machine. A concrete subtype of FiniteStateMachineType shall define at least one state.

A state machine may define one state which is an instance of the InitialStateType. This state is the state that the machine goes into when it is activated.

The transitions that may occur are represented with instances of the TransitionType. Each transition shall have a BrowseName which is unique within the state machine and may have a TransitionNumber which shall also be unique across all transitions defined in the state machine.

The initial state for a transition is a StateType object which is the target of a FromState reference. The final state for a transition is a StateType object which is the target of a ToState reference. The FromState and ToState references shall always be specified.

A transition may produce an event. The event is indicated by a HasEffect reference to a subtype of BaseEventType. The StateMachineType shall have GeneratesEvent references to the targets of a HasEffect reference for each of its transitions.

A FiniteStateMachineType may define methods that cause a transition to occur. These methods are targets of HasCause references for each of the transitions that may be triggered by the method. The Executable attribute for a method is used to indicate whether the current state of the machine allows the method to be called.

A FiniteStateMachineType may have sub-state machines which are represented as instances of StateMachineType ObjectTypes. Each state shall have a HasSubStateMachine reference to the StateMachineType object which represents the child states. The SubStateMachine is not active if the parent state is not active. In this case the CurrentState and LastTransition variables of the sub-state machine shall have a status equal to Bad_StateNotActive.

Constructor & Destructor Documentation

OpcUa::FiniteStateMachineType::FiniteStateMachineType	(	const UaNodeId &	nodeId,
		UaObject *	pInstanceDeclarationObject,
		NodeManagerConfig *	pNodeConfig,
		UaMutexRefCounted *	pSharedMutex = `NULL`
	)

Construction of the class FiniteStateMachineType.

This constructor is used if the object is created based on an instance declaration of an object type. Since the only difference between the instance declaration object and the instance object are the node id, the pointer to the instance declaration node is used to get the attribute values other than NodeId from the instance declaration node.

The object is reference counted and can not be deleted directly. The reference counter is set to one after the object is created. If the object was successfully added to a NodeManager using the methods NodeManagerConfig::addUaNode or NodeManagerConfig::addNodeAndReference the NodeManager will release this reference during shut down. If the object was not added to a NodeManager, it must be deleted using the releaseReference method. If the interface pointer is used in other places, the availability of the object must be ensured by incrementing the reference counter with addReference when the pointer is stored somewhere and decremented with releaseReference if the interface pointer is not longer needed.

Parameters

[in]	nodeId	NodeId of the new object
[in]	pInstanceDeclarationObject	UaObject interface of the instance declaration node used to provide attribute values other than NodeId
[in]	pNodeConfig	Interface pointer to the NodeManagerConfig interface used to add and delete node and references in the address space
[in]	pSharedMutex	Shared mutex object used to synchronize access to the object. Can be NULL if no shared mutex is provided

OpcUa::FiniteStateMachineType::FiniteStateMachineType	(	const UaNodeId &	nodeId,
		const UaString &	name,
		OpcUa_UInt16	browseNameNameSpaceIndex,
		NodeManagerConfig *	pNodeConfig,
		UaMutexRefCounted *	pSharedMutex = `NULL`
	)

Construction of the class FiniteStateMachineType.

This constructor is used if the object is not created based on an instance declaration. It defines the name and node id of the object. Additional language specific names and other attribute values can be set with set methods provided by the class.

The object is reference counted and can not be deleted directly. The reference counter is set to one after the object is created. If the object was successfully added to a NodeManager using the methods NodeManagerConfig::addUaNode or NodeManagerConfig::addNodeAndReference the NodeManager will release this reference during shut down. If the object was not added to a NodeManager, it must be deleted using the releaseReference method. If the interface pointer is used in other places, the availability of the object must be ensured by incrementing the reference counter with addReference when the pointer is stored somewhere and decremented with releaseReference if the interface pointer is not longer needed.

Parameters

[in]	nodeId	NodeId of the new object
[in]	name	Name of the new object. Used as browse name and also as display name if no additional language specific names are set.
[in]	browseNameNameSpaceIndex	Namespace index used for the browse name
[in]	pNodeConfig	Interface pointer to the NodeManagerConfig interface used to add and delete node and references in the address space
[in]	pSharedMutex	Shared mutex object used to synchronize access to the object. Can be NULL if no shared mutex is provided

OpcUa::FiniteStateMachineType::FiniteStateMachineType	(	UaBase::Object *	pBaseNode,
		XmlUaNodeFactoryManager *	pFactory,
		NodeManagerConfig *	pNodeConfig,
		UaMutexRefCounted *	pSharedMutex = `NULL`
	)

Constructs an instance of the class FiniteStateMachineType with all components.

Parameters

[in]	pBaseNode	The "tree" of nodes that specifies the attributes of the instance and its children
[in]	pFactory	The factory to create the children
[in]	pNodeConfig	Interface pointer to the NodeManagerConfig interface used to add and delete node and references in the address space
[in]	pSharedMutex	Shared mutex object used to synchronize access to the variable. Can be NULL if no shared mutex is provided

Member Function Documentation

UaLocalizedText OpcUa::FiniteStateMachineType::getCurrentState ( Session * pSession )

virtual

Gets the CurrentState.

Stores the current state of an instance of the FiniteStateMachineType.

CurrentState provides a human readable name for the current state which may not be suitable for use in application control logic. Applications should use the Id property of CurrentState if they need a unique identifier for the state.

OpcUa::FiniteStateVariableType * OpcUa::FiniteStateMachineType::getCurrentStateNode ( )

virtual

Returns the CurrentState node.

Stores the current state of an instance of the FiniteStateMachineType.

CurrentState provides a human readable name for the current state which may not be suitable for use in application control logic. Applications should use the Id property of CurrentState if they need a unique identifier for the state.

UaLocalizedText OpcUa::FiniteStateMachineType::getLastTransition ( Session * pSession )

virtual

Gets the LastTransition.

Stores the last transition which occurred in an instance of the FiniteStateMachineType.

LastTransition provides a human readable name for the last transition which may not be suitable for use in application control logic. Applications should use the Id property of LastTransition if they need a unique identifier for the transition.

OpcUa::FiniteTransitionVariableType * OpcUa::FiniteStateMachineType::getLastTransitionNode ( )

virtual

Returns the LastTransition node.

If the Variable has not been created yet, this method returns NULL.

Stores the last transition which occurred in an instance of the FiniteStateMachineType.

LastTransition provides a human readable name for the last transition which may not be suitable for use in application control logic. Applications should use the Id property of LastTransition if they need a unique identifier for the transition.

void OpcUa::FiniteStateMachineType::setCurrentState ( const UaLocalizedText & CurrentState )

virtual

Sets the CurrentState.

Stores the current state of an instance of the FiniteStateMachineType.

CurrentState provides a human readable name for the current state which may not be suitable for use in application control logic. Applications should use the Id property of CurrentState if they need a unique identifier for the state.

void OpcUa::FiniteStateMachineType::setLastTransition ( const UaLocalizedText & LastTransition )

virtual

Sets the LastTransition.

Stores the last transition which occurred in an instance of the FiniteStateMachineType.

LastTransition provides a human readable name for the last transition which may not be suitable for use in application control logic. Applications should use the Id property of LastTransition if they need a unique identifier for the transition.

void OpcUa::FiniteStateMachineType::useAccessInfoFromInstance ( FiniteStateMachineType * pOther )

Uses the NodeAccessInfo of pOther and its children.

void OpcUa::FiniteStateMachineType::useAccessInfoFromType ( )

virtual

Applys the NodeAccessInfo set at the FiniteStateMachineType and its children.

Reimplemented from OpcUa::BaseObjectType.

Reimplemented in OpcUa::ShelvedStateMachineTypeBase, OpcUa::ProgramStateMachineTypeBase, and OpcUa::ExclusiveLimitStateMachineType.

The documentation for this class was generated from the following files:

C:/work/uasdkcpp/src/uaserver/uaservercpp/coremodule/opcua_finitestatemachinetype.h
C:/work/uasdkcpp/src/uaserver/uaservercpp/coremodule/opcua_finitestatemachinetype.cpp

Public Member Functions

Static Public Member Functions

Protected Member Functions

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation