SprinBean annotated fields are not reinjected when the same instance of the
component is being reused.
------------------------------------------------------------------------------------------------------
Key: WICKET-2476
URL: https://issues.apache.org/jira/browse/WICKET-2476
Project: Wicket
Issue Type: Improvement
Components: wicket-spring
Affects Versions: 1.4.1
Reporter: Dominik Drzewiecki
Fix For: 1.4.2
SpringBean annotated components' fields get injected on instantiation only
(well, that's when the IComponentInstantiationListener implementations are
supposed kick in), while they are left as-is on subsequent reusage of the same
component (e.g. when Page instance is retrieved from the pageMap rather than
being instantiated). This behavior leads to the wrong instances of beans being
available as reused components injected fields whenever the scope of the bean
is declared as "prototype" or "request" (or some other scope narrower than
"session"). A glimpse at the wicket guts led me to the hypothesis that this
problem might be solved by additionally implementing
IComponentOnBeforeRenderListener and registering it using
addPreComponentOnBeforeRenderListener(). How about:
package org.apache.wicket.injection;
public class ComponentInjector
implements
IComponentInstantiationListener,
IComponentOnBeforeRenderListener
{
public void onInstantiation(Component component) {
getInjector().inject(component);
}
.....
public void onBeforeRender(Component component) {
getInjector().inject(component);
}
}
and then in Appliaction's int()
ComponentInjector injector = new SpringComponentInjector(this);
addComponentInstantiationListener(injector);
addPreComponentOnBeforeRenderListener(injector);
My initial observations prove that the injector.inject() should also correctly
address the case whenever the instance had already been injected with the proxy
(otherwise field.get(object) call fails)
--
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.
