CacheSignal Class Reference
#include <uadatavariablecache.h>
Public Member Functions | |
| virtual | ~CacheSignal () |
| virtual void | setChanged ()=0 |
| virtual OpcUa_UInt32 | getSamplingRate ()=0 |
| virtual UaNumericRange * | getIndexRange () |
| virtual OpcUa_Boolean | isPercentDeadband (OpcUa_Double &absoluteChange) |
| virtual void | setInvalid ()=0 |
Detailed Description
Interface class for the connection between variables and the data sampling.
This class defines the abstract interface for the connection between a variable and the sampling item in an IOManager implementation. It is used to signal changes of the variable value and to indicate that the variable is not longer valid.
Constructor & Destructor Documentation
| virtual CacheSignal::~CacheSignal | ( | ) | [inline, virtual] |
destruction
Member Function Documentation
| virtual UaNumericRange* CacheSignal::getIndexRange | ( | ) | [inline, virtual] |
Get the index range for the sampling item. Returns NULL if no index range is set
| virtual OpcUa_UInt32 CacheSignal::getSamplingRate | ( | ) | [pure virtual] |
Get the sampling rate of the item
Implemented in CacheVariableConnector.
| virtual OpcUa_Boolean CacheSignal::isPercentDeadband | ( | OpcUa_Double & | absoluteChange ) | [inline, virtual] |
Indicates if percent deadband is requested and provides the value of the absulute change necessary to pass the deadband filter.
| virtual void CacheSignal::setChanged | ( | ) | [pure virtual] |
Signal a change in value or state
Implemented in CacheVariableConnector.
| virtual void CacheSignal::setInvalid | ( | ) | [pure virtual] |
Set the item invalid
Implemented in CacheVariableConnector.
The documentation for this class was generated from the following file:
- /home/buildbot/work/uasdkcpp/src/uaserver/uaservercpp/coremodule/uadatavariablecache.h
