In what package are these implementation classes?
On Feb 1, 2008 1:53 AM, Moritz Gmelin <[EMAIL PROTECTED]> wrote:
> P.P.S.
>
> If I just hit reload after the exception has occured, the EditPage
> loads as expected.
>
> M.
>
> Am 01.02.2008 um 10:03 schrieb Moritz Gmelin:
>
>
> > P.S. this happens with T 5.0.9
> >
> > Am 01.02.2008 um 10:02 schrieb Moritz Gmelin:
> >
> >> Hi,
> >>
> >> I have an Editing page that I would like to use to edit different
> >> object implementing the same class. If I switch the object I want
> >> to edit I get a ClassCastException in the
> >> CoercingPropertyConduitWrapper (see below).
> >>
> >> I have created a simple scenario to reproduce this.
> >>
> >> First there is a Base Page CoercTest that hast 2 ActionLinks that
> >> lead to the ObjectEditPage
> >>
> >> -----------------------------
> >>
> >> public class CoercTest {
> >>
> >> @InjectPage
> >> private ObjectEditPage editPage;
> >>
> >> @OnEvent(component="typeTO1")
> >> public ObjectEditPage onTypeTO1() {
> >> editPage.setTestObject(new TO1());
> >> return editPage;
> >>
> >> }
> >>
> >> @OnEvent(component="typeTO2")
> >> public ObjectEditPage onTypeTO2() {
> >> editPage.setTestObject(new TO2());
> >> return editPage;
> >>
> >> }
> >>
> >> }
> >>
> >> ----------------------------------
> >>
> >> TO1 and TO2 both implement TestInterface
> >>
> >> This is what ObjectEditPage looks like
> >>
> >> -------------------
> >>
> >> @Persist
> >> private TestInterface testObject;
> >>
> >> public TestInterface getTestObject() {
> >> return testObject;
> >> }
> >>
> >> public void setTestObject(TestInterface to) {
> >> this.testObject = to;
> >> }
> >>
> >> public Object onSuccess() {
> >> testObject = null;
> >> return CoercTest.class;
> >> }
> >>
> >> ------------------------
> >>
> >> the tml contains just a BeanForm to edit the "testObject"
> >>
> >>
> >> Now if the user hits the first ActionLink on the CoercTest page,
> >> and submits the form everything looks OK. But as soons as he then
> >> hits the 2. ActionLink to edit an Object of the other SubType of
> >> TestInterface he gets the following Exception
> >>
> >> ------------------------
> >>
> >> java.lang.ClassCastException
> >> de.avetana.app.pages.test.TO2
> >> Stack trace
> >> •
> >> org
> >> .apache
> >> .tapestry
> >> .internal
> >> .services
> >> .CoercingPropertyConduitWrapper
> >> .get(CoercingPropertyConduitWrapper.java:36)
> >> • org.apache.tapestry.corelib.components.PropertyEditor
> >> $1.getPropertyValue(PropertyEditor.java:151)
> >> •
> >> org
> >> .apache.tapestry.internal.bindings.PropBinding.get(PropBinding.java:
> >> 54)
> >> •
> >> org
> >> .apache
> >> .tapestry
> >> .internal
> >> .structure
> >> .InternalComponentResourcesImpl
> >> .readParameter(InternalComponentResourcesImpl.java:209)
> >> •
> >> org
> >> .apache
> >> .tapestry
> >> .internal
> >> .structure
> >> .InternalComponentResourcesImpl
> >> .readParameter(InternalComponentResourcesImpl.java:224)
> >> • org.apache.tapestry.corelib.base.AbstractTextField._
> >> $read_parameter_value(AbstractTextField.java)
> >> •
> >> org
> >> .apache
> >> .tapestry
> >> .corelib.base.AbstractTextField.begin(AbstractTextField.java:154)
> >> •
> >> org
> >> .apache
> >> .tapestry
> >> .corelib.base.AbstractTextField.beginRender(AbstractTextField.java)
> >> •
> >> org.apache.tapestry.internal.structure.ComponentPageElementImpl
> >> $10$1.run(ComponentPageElementImpl.java:327)
> >> •
> >> org
> >> .apache
> >> .tapestry
> >> .internal
> >> .structure
> >> .ComponentPageElementImpl.invoke(ComponentPageElementImpl.java:869)
> >> •
> >> org
> >> .apache.tapestry.internal.structure.ComponentPageElementImpl.access
> >> $100(ComponentPageElementImpl.java:53)
> >> •
> >> org.apache.tapestry.internal.structure.ComponentPageElementImpl
> >> $10.render(ComponentPageElementImpl.java:331)
> >> •
> >> org
> >> .apache
> >> .tapestry
> >> .internal.services.RenderQueueImpl.run(RenderQueueImpl.java:58)
> >> •
> >> org
> >> .apache
> >> .tapestry
> >> .internal
> >> .services.PageRenderQueueImpl.render(PageRenderQueueImpl.java:63)
> >> • org.apache.tapestry.services.TapestryModule
> >> $19.renderMarkup(TapestryModule.java:1291)
> >> • org.apache.tapestry.services.TapestryModule
> >> $23.renderMarkup(TapestryModule.java:1399)
> >> • org.apache.tapestry.services.TapestryModule
> >> $22.renderMarkup(TapestryModule.java:1380)
> >>
> >> ----------------------------
> >>
> >>
> >>
> >>
> >> Is there anything one can do to have EditingPages that can handle
> >> more than one object type?
> >>
> >> M.
> >> ---------------------------------------------------------------------
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> >
> >
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--
Howard M. Lewis Ship
Creator Apache Tapestry and Apache HiveMind
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