Hi Mike,
Sorry for the late reply. I believe the PageScopeResolver is suppose to resolve this issue by making
pages prototype. The Click examples uses the same approach so not 100% sure why you are seeing
different behavior. Could you post your click.xml and spring.xml here, perhaps its a configuration
issue?
kind regards
bob
On 3/02/2010 10:02 AM, Mike W wrote:
Yes, it's the same.
elloWorldPage.onRender(): this.hashCode = 18557807
[Click] [info ] renderTemplate: /hello-world.htm - 131 ms
[Click] [info ] handleRequest: /hello-world.htm - 171 ms
[Click] [debug] GET http://localhost:8080/lamapp/hello-world.htm
HelloWorldPage.onRender(): this.hashCode = 18557807
On February 2, 2010 at 10:08 PM Bob Schellink <[email protected]> wrote:
> Hmm, sounds as if Spring is creating a singleton Page instance and
reserving it each request.
>
> If you print the Page hashcode do you receive the same value each
request?
>
> public void onRender() {
> System.out.println("Hash : " + this.getHashcode());
> }
>
> kind regards
>
> bob
>
>
> On 3/02/2010 08:31 AM, Mike W wrote:
> >
> >
> > Thanks for the quick reply, Bob.
> >
> > Yes, that's what it's acting like but how does the page get set to
> > Stateful? I'm not doing it by calling setStateful(true) or doing
> > anything in click.xml. The Page is just HelloWorld with @Component
added
> > to it.
> >
> > Does @Component/PageScopeResolver set the Page to stateful? I thought
> > that was supposed to do the opposite -- set any injected spring
beans to
> > 'prototype'.
> >
> > BTW, I'm using 2.1.0-RC1 if it makes a difference.
> >
> > Thanks again.
> >
> > On February 2, 2010 at 9:22 PM Bob Schellink <[email protected]> wrote:
> >
> > > Hi Mike,
> > >
> > > My guess is that the Page is set to stateful? Stateful Pages are
> > created once and reused on
> > > subsequent calls. You'll need to either put a guard against adding to
> > the model twice or use the
> > > onDestroy event to remove the value from the model.
> > >
> > > kind regards
> > >
> > > bob
> > >
> > > On 3/02/2010 02:42 AM, Mike W wrote:
> > > >
> > > >
> > > > I'm new to Click and I'm trying to integrate a Spring DAO into the
> > > > HelloWorldPage (at end) example.
> > > >
> > > > I'm getting a 'model already contains value' exception on the
second
> > > > call to the onRender() method so it appears that the page is being
> > > > reused instead of recreated. I guess I'm not sure what the
> > > > PageScopeResolver is supposed to do.
> > > >
> > > > I added @Component (with the intention of adding @Resource for DAOs
> > > > later) to HelloWorldPage.java and
> > > >
> > > > <context:component-scan
> > > > base-package="clickhello.page"
> > > >
> > > > scope-resolver="org.apache.click.extras.spring.PageScopeResolver"/>
> > > >
> > > > to my Spring beans configuration. If I take either of the above
changes
> > > > out, the page can be re-rendered as expected.
> > > >
> > > > Thanks.
> > > >
> > > >
> > > >
> > > >
> > > > package clickhello.page;
> > > >
> > > > import java.util.Date;
> > > > import java.util.Random;
> > > > import org.apache.click.Page;
> > > > import org.apache.click.control.ActionLink;
> > > >
> > > > *...@component
> > > > *public class HelloWorldPage extends Page {
> > > > private static final Random randomGenerator = new Random();
> > > > private Date date = new Date();
> > > >
> > > > public HelloWorldPage() {
> > > > ActionLink refreshLink = new ActionLink("refresh");
> > > > ActionLink randomLink = new ActionLink("random", this, "onRandom");
> > > >
> > > > addControl(refreshLink);
> > > > addControl(randomLink);
> > > > }
> > > >
> > > > public boolean onRandom() {
> > > > long maximum = System.currentTimeMillis();
> > > > long random = randomGenerator.nextLong() % maximum;
> > > > date = new Date(random);
> > > > return true;
> > > > }
> > > >
> > > > @Override
> > > > public void onRender() {
> > > > addModel("dateAndTime", date);
> > > > }
> > > > }
> > > >
> > > >
> > > >
> > >
>
