We are able to execute verification with help of PhaseListener.

However we should be able to invoke JSF logic like:

• conversion
• validation
• action invocation

To achieve that, one can place auxilliary JSF component into built JSF tree and if there will be any actions defined, trigger action.

API proposal:

@DuringConversion
public void throwConversionError() {};

@DuringValidation
public void throwValidationError() {};

@DuringApplicationInvocation
public void manipulateWithModel() {};