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Hy there,
I am absolutely fresh to Java EE and CDI. I try to set up a test-project in order to do my first steps with JAX-RS and CDI. I have CDI enabled by providing a beans.xml. As long as I am testing, I use the bean-discovery-mode="all" element. CDI seems to work fine, as I can successfully inject a BeanManager into my test-resource and I can output all the beans it discovered.
I try to inject a class provided by a producer method. Netbeans shows me a warning for the provideMe field: No enabled eligible for injection beans are found
When I deploy the application to Glassfish, I get the weld exception:
WELD-001408 Unsatisfied dependencies for type [ProvideMeInterface] with qualifiers [@Default] at injection point [[BackedAnnotatedField] @Inject private com.test.rest.DataImport.provideMe]
Here are my classes for this little test:
Interface:
package com.test.orm;
public interface ProvideMeInterface
{
int getCount();
}
Implementation:
package com.test.orm;
public class ProvideMeImpl implements ProvideMeInterface {
int cnt;
ProvideMeImpl(int cnt)
{
this.cnt = cnt;
}
@Override
public int getCount() {
return cnt;
}
}
Producer:
package com.test.orm;
import javax.enterprise.context.ApplicationScoped;
import javax.ws.rs.Produces;
public class ProvideMeProvider {
@Produces
@ApplicationScoped
public ProvideMeInterface produceFactory() {
return new ProvideMeImpl(111);
}
}
Resource:
package com.test.rest;
import ...
...
@Path("rest/import")
public class DataImport {
private final Logger logger = LoggerFactory.getLogger(getClass());
@Inject
private ProvideMeInterface provideMe;
@Inject
BeanManager beanManager;
public DataImport() {}
@GET
@Produces("text/html")
public String getHtml() {
return "<html><body><h1>IMPORT Resource: " + provideMe.getCount() + " </body></h1></html>";
}
}
When I start the application without the "ProvideMe" test and I print print out all the discovered beans, the ProvideMeProvider class is discovered, as also 'ProvideMe':
...
INFO: 2014-07-14 14:09:31,040 [DEBUG] com.test.rest.DataImport - Bean: com.test.orm.ProvideMeProvider
INFO: 2014-07-14 14:09:31,041 [DEBUG] com.test.rest.DataImport - Bean: com.test.orm.ProvideMe
...
Questions:
1) Why do I get the "Unsatisfied dependencies.." error when trying to inject the only implementation for the interface?
2) Are all necessary classes discovered here?
3) If not, what do I need to do so they get discovered?
4) What is the "ProvideMe" class that it discovers? (I've got ProvideMeImpl, ProvideMeInterface and ProvideMeProvider, but no class ProvideMe)
I am using: Glassfish 4.0 (build 89) (Java EE 7 Web)/NetBeans 8.0/maven 3.2.1/JDK 1.7
546
You are importing @Produces from javax.ws.rs (used by the JAX-RS runtime), instead from javax.enterprise.inject.
58
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