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https://issues.apache.org/jira/browse/TAPESTRY-2289?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Howard M. Lewis Ship updated TAPESTRY-2289:
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Summary: Tapestry's understanding of generics is limited to getter and
setter methods; it does not understand generics as parameters to event handler
methods such as onActivate() (was: Generic support does not handle onActivate)
> Tapestry's understanding of generics is limited to getter and setter methods;
> it does not understand generics as parameters to event handler methods such
> as onActivate()
> -------------------------------------------------------------------------------------------------------------------------------------------------------------------------
>
> Key: TAPESTRY-2289
> URL: https://issues.apache.org/jira/browse/TAPESTRY-2289
> Project: Tapestry
> Issue Type: Improvement
> Components: tapestry-core
> Affects Versions: 5.0.12
> Reporter: Angelo Chen
> Priority: Minor
>
> Hi,
> I'm trying out generic in 5.0.11, I have a base class ObjectEdit, then
> public class ObjectEdit<T> {
> private T object;
> public T getObject() { return object;}
> public void setObject(T object) { this.object = object;}
> public void onActivate(T obj) { object = obj;}
> public T onPassivate() { return object; }
> }
> I was hoping that I can just extend it like this:
> public class UserEdit extends ObjectEdit <Usr> {
> }
> but it does not work, error:
> org.apache.tapestry.ioc.internal.util.TapestryException
> Failure reading parameter 'object' of component admin/UserEdit:object:
> java.lang.String
> I have to do:
> public class UserEdit extends ObjectEdit <User> {
> public void onActivate(User obj) {
> this.setObject(obj);
> }
> }
> and remove the onActivate from ObjectEdit, why onActivate does not work in a
> base class when onPassivate can? Thanks,
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