C# Class Opc.Ua.Com.Server.ComHdaItemManager

A class that implements a COM DA group.

Public Methods

Method	Description
ComHdaItemManager ( ComNamespaceMapper mapper ) : System	Initializes a new instance of the ComHdaItemManager class.
GetAnnotationsPropertyNodeId ( Session session, HdaItemHandle itemHandle ) : NodeId	Gets the annotations property node id.
GetAttributeHistoryNodeIds ( Session session, HdaItemHandle itemHandle, uint attributeIds, NodeId &nodeIds ) : int[]	Reads the node ids used to fetch the history of the specified attributes.
GetItemHandles ( Session session, string itemIds, int clientHandles, bool validateOnly ) : Opc.Ua.Com.Server.HdaItemHandle[]	Gets the item handles.
GetRemoteDataType ( HdaItemHandle handle ) : TypeInfo	Gets the type of the remote data.
LookupHandle ( int serverHandle ) : HdaItemHandle	Lookups the handle.
ReadCurrentValues ( Session session, HdaItemHandle itemHandle, uint attributeIds ) : DaValue[]	Reads the current values for the specified attributes.
ReleaseItemHandles ( Session session, int serverHandles ) : int[]	Releases the item handles.

Method	Description
Construct ( NodeId nodeId, uint hdaAttributeId ) : BrowsePath	Constructs the browse path.
Construct ( InternalHandle handle, uint uaAttributeId ) : ReadValueId	Constructs a ReadValueId for the specified UA attribute.
Construct ( NodeId nodeId, uint hdaAttributeId, uint uaAttributeId ) : ReadValueId	Constructs a ReadValueId for the specified UA attribute.
GetAttributeValue ( Session session, uint attributeId, DataValueCollection values, int index ) : DaValue	Converts a UA value to an HDA attribute value.
GetAvailableAttributes ( Session session, NodeId nodeId ) : ReadValueIdCollection	Gets the available attributes for an HDA item.
GetReadValueId ( ReadValueIdCollection supportedAttributes, uint attributeId ) : ReadValueId	Gets the read value id for the specified attribute.

Initializes a new instance of the ComHdaItemManager class.

public ComHdaItemManager ( ComNamespaceMapper mapper ) : System
mapper	ComNamespaceMapper	The object used to map namespace indexes.
return	System

Gets the annotations property node id.

public GetAnnotationsPropertyNodeId ( Session session, HdaItemHandle itemHandle ) : NodeId
session	Opc.Ua.Client.Session	The session.
itemHandle	HdaItemHandle	The item handle.
return	NodeId

Reads the node ids used to fetch the history of the specified attributes.

public GetAttributeHistoryNodeIds ( Session session, HdaItemHandle itemHandle, uint attributeIds, NodeId &nodeIds ) : int[]
session	Opc.Ua.Client.Session	The session.
itemHandle	HdaItemHandle	The item handle.
attributeIds	uint	The attribute ids.
nodeIds	NodeId	The node ids.
return	int[]

Gets the item handles.

public GetItemHandles ( Session session, string itemIds, int clientHandles, bool validateOnly ) : Opc.Ua.Com.Server.HdaItemHandle[]
session	Opc.Ua.Client.Session	The session.
itemIds	string	The item ids.
clientHandles	int	The client handles.
validateOnly	bool	if set to true handles are not created and item ids are only validated.
return	Opc.Ua.Com.Server.HdaItemHandle[]

Gets the type of the remote data.

public GetRemoteDataType ( HdaItemHandle handle ) : TypeInfo
handle	HdaItemHandle	The handle.
return	TypeInfo

Lookups the handle.

public LookupHandle ( int serverHandle ) : HdaItemHandle
serverHandle	int	The server handle.
return	HdaItemHandle

Reads the current values for the specified attributes.

public ReadCurrentValues ( Session session, HdaItemHandle itemHandle, uint attributeIds ) : DaValue[]
session	Opc.Ua.Client.Session	The session.
itemHandle	HdaItemHandle	The item handle.
attributeIds	uint	The attribute ids.
return	DaValue[]

Releases the item handles.

public ReleaseItemHandles ( Session session, int serverHandles ) : int[]
session	Opc.Ua.Client.Session	The session.
serverHandles	int	The server handles.
return	int[]