More than one result set with @ResultMap

[emacarron]

Right now @resultMap looks like

public @interface ResultMap {
  String value();
}

So it looks like only one resultmap can be specified, but in fact it accepts setting the value like this way:

@resultMap("rm1,rm2")

I suggest changing the signature to:

public @interface ResultMap {
  String[] value();
}

So it is evident that it supports more than one resultMap and will be used like:

@resultMap("rm1") for one
@resultMap({"rm1","rm2"}) for more than one

We should keep compat with the old method.