You are viewing a plain text version of this content. The canonical link for it is here.
Posted to commits@tapestry.apache.org by "Massimo Lusetti (JIRA)" <ji...@apache.org> on 2011/08/12 00:20:27 UTC
[jira] [Commented] (TAP5-191) 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()
[ https://issues.apache.org/jira/browse/TAP5-191?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13083741#comment-13083741 ]
Massimo Lusetti commented on TAP5-191:
--------------------------------------
Josh how is this?
> 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: TAP5-191
> URL: https://issues.apache.org/jira/browse/TAP5-191
> Project: Tapestry 5
> Issue Type: Improvement
> Affects Versions: 5.0.15
> Reporter: Angelo Chen
> Assignee: Josh Canfield
> 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,
--
This message is automatically generated by JIRA.
For more information on JIRA, see: http://www.atlassian.com/software/jira