Hi, regretfully Java lambdas don't provide type information via reflection.
Have fun Sven Am 16. Juni 2018 12:31:40 MESZ schrieb smallufo <small...@gmail.com>: >Thanks . >It works (but seems a little duplication) > >Andrew Geery <andrew.ge...@gmail.com> 於 2018年6月16日 週六 下午5:32寫道： > >> You have to use the TextField constructor that specifies the type of >the >> model: >> >> >https://ci.apache.org/projects/wicket/apidocs/8.x/org/apache/wicket/markup/html/form/TextField.html#TextField-java.lang.String-org.apache.wicket.model.IModel-java.lang.Class- >> >> It should be: >> >> add(new TextField<>("year", LambdaModel.of(obj::getYear, >obj::setYear), >> Integer.class)); >> >> That one always gets me too... >> >> Thanks >> Andrew >> >> On Sat, Jun 16, 2018 at 3:30 AM smallufo <small...@gmail.com> wrote: >> >> > After upgrading to 8.0 , I tried the exciting LambdaModel , try to >> replace >> > the non-TypeSafety PropertyModel >> > But I found it cannot handle type intelligently. >> > For a TextField<Integer> , for example : >> > >> > form.add(new TextField<Integer>("year", >LambdaModel.of(obj::getYear, >> > obj::setYear ))); >> > >> > At runtime , it reports Cannot cast from String to Integer. >> > >> > I have to rewrite getter / setter to String type (and do conversion > in >> > setter ) , but the backing field is Integer type. (And change >> > TextField<Integer> to TextField<String> , or <> ) >> > >> > This is pity ... >> > Did I miss anything ? >> > >> > Thanks. >> > >>
