com.prosysopc.ua.server.nodes
Interface UaVariableCallback

All Known Implementing Classes:
ReflectionCallback

public interface UaVariableCallback

A variable implementation that accesses an external value via callback methods.


Method Summary
 Object getValue()
           
 boolean setValue(Object newValue)
           
 

Method Detail

getValue

Object getValue()
                throws StatusException
Returns:
the current value of the variable.
Throws:
StatusException - if the value is not available. Set the StatusCode to what should be provided.

setValue

boolean setValue(Object newValue)
                 throws StatusException
Parameters:
newValue - the new value to set for the variable.
Returns:
true if the value was changed
Throws:
StatusException - if the value cannot or may not be written


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