Eval

public interface Eval

Interface to be implemented by evaluation functions (see Workspace.registerEval(Path,Eval))

Methods

callback

public Value callback(Path path, Properties props)

The callback operation called each time the Workspace.get(Selector) operation is called for a Selector matching the Path this Eval is registered with. Zenoh will wrap the returned Value into a Data and add it to the result of the get() operation.

Parameters:

• path – the Path with which the Eval has been registered with (in case the same Eval is registered with several Paths).
• props – the Properties specified in the Selector used in eval operation.

Returns:

a Value resulting of the evaluation.