For the future reference:
One can inject using
@Inject Instance<MyBean> bean;
and then call
bean.isUnsatisfied()
This wouldn't throw an exception and allow to check before use.
Ondra
On 03/05/2013 12:59 AM, Igor Vaynberg wrote:
this is how cdi works, if it cannot inject something it fails. notice
the top frame is inside weld not wicket nor wicket-cdi.
if you have things that can be optional you should inject
Instance<Thing> and query that for thing.
-igor
On Mon, Mar 4, 2013 at 1:25 PM, Ondrej Zizka <[email protected]> wrote:
Hi all,
I use the CDI integration.
new
CdiConfiguration(bm).setPropagation(ConversationPropagation.NONE).configure(this);
When the injection fails, it happens in <init>. Can I configure it to set
the field to null, as a NPE during page rendering is easier to handle than
init exception?
I didn't find anything in the lib itself.
The stacktrace is:
at
org.jboss.weld.manager.SimpleInjectionTarget.inject(SimpleInjectionTarget.java:102)
at net.ftlines.wicket.cdi.NonContextual.inject(NonContextual.java:141)
at
net.ftlines.wicket.cdi.NonContextualManager.inject(NonContextualManager.java:49)
at
net.ftlines.wicket.cdi.AbstractInjector.inject(AbstractInjector.java:38)
at
net.ftlines.wicket.cdi.ComponentInjector.onInstantiation(ComponentInjector.java:43)
at
org.apache.wicket.application.ComponentInstantiationListenerCollection$1.notify(ComponentInstantiationListenerCollection.java:36)
at
org.apache.wicket.application.ComponentInstantiationListenerCollection$1.notify(ComponentInstantiationListenerCollection.java:34)
at
org.apache.wicket.util.listener.ListenerCollection.notify(ListenerCollection.java:80)
at
org.apache.wicket.application.ComponentInstantiationListenerCollection.onInstantiation(ComponentInstantiationListenerCollection.java:32)
at org.apache.wicket.Component.<init>(Component.java:679)
Thanks,
Ondra
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