internal override void Execute(Processor processor, ActionFrame frame) {
Debug.Assert(processor != null && frame != null);
object ParamValue;
switch(frame.State) {
case Initialized:
if (this.selectKey != Compiler.InvalidQueryKey) {
ParamValue = processor.RunQuery(frame, this.selectKey);
processor.SetParameter(this.name, ParamValue);
frame.Finished();
}
else {
if (this.containedActions == null) {
processor.SetParameter(this.name, string.Empty);
frame.Finished();
break;
}
NavigatorOutput output = new NavigatorOutput(baseUri);
processor.PushOutput(output);
processor.PushActionFrame(frame);
frame.State = ProcessingChildren;
}
break;
case ProcessingChildren:
RecordOutput recOutput = processor.PopOutput();
Debug.Assert(recOutput is NavigatorOutput);
processor.SetParameter(this.name,((NavigatorOutput)recOutput).Navigator);
frame.Finished();
break;
default:
Debug.Fail("Invalid execution state inside VariableAction.Execute");
break;
}
}
}