2 Suggestions: 1. Have you tried cleaning your project and re-building it ? Restarting the server on which you are developing ? 2. Why don't you construct the bean yourself ? Add an event handler method to handle the "PREPARE" event of form embracing your bean editor.
On Tue, Oct 4, 2011 at 4:21 AM, George Ludwig <georgelud...@gmail.com>wrote: > I've got a bean that reads/writes to the file system. To do that, it's > constructor takes a param for the file path. Very straightforward, however > using this bean has been problematic. I got the "no service implements the > interface String" exception when constructing the bean, which led me to the > FAQ here: http://tapestry.apache.org/beaneditform-faq.html However, things > do not work as advertised in the FAQ. > > No matter what I do, Tapestry requires that the bean have a no argument > constructor, and that I annotate that constructor with @Inject. And in the > debugger I see that the parameterized constructor is called twice > from onPrepareFromMyBeanEditor(), after which the no-param constructor is > called. > > At the time the page renders, my bean lacks a filepath, I assume because > the > last time the constructor was called, it had no parameters. > > Summary: > Bean constructors are called multiple times, twice with params and once > without, always resulting in a bean that has been created with no > parameters. > > What can I do here? I've included hacked version of the FAQ code with > notes. > > Best, > > George > > public class MyBean { > @Inject <------------------------------ without this annotation > on the no-param constructor, Tapestry always throws a "no service ..." > exception > public MyBean() { ... } > public MyBean(String filePath) { ... } > } > > public class MyPage { > @Property > public MyBean myBean; <--------------- the example code declares this as > public, but Tapestry throws an exception, insisting it be made private...is > this possibly related to the problem I'm seeing? > void onPrepareFromMyBeanEditor() { > myBean = new MyBean(getFilePath()); <------------------- I need a param > to point to the file, but can't seem to hang on to the bean that is > instantiated here > } > } > -- *Regards,* *Muhammad Gelbana Java Developer*
