Cannot resolve any beans for Type: xxx; Qualifiers: [@ javax.enterprise.inject.Any ()]
I have a LoginProvider interface:
public interface LoginProvider {
boolean login(String username, String password);
}
And two different implementations:
public class LoginProvider1Impl implements LoginProvider {
@Override
public boolean login(String username, String password) {
...
}
}
public class LoginProvider2Impl implements LoginProvider {
@Override
public boolean login(String username, String password) {
...
}
}
Then the manufacturer's annotation:
@Qualifier
@Retention(RetentionPolicy.RUNTIME)
@Target({FIELD, METHOD, PARAMETER, TYPE, CONSTRUCTOR})
public @interface LoginProviderProducer {
}
Annotation to indicate the provider implementation:
@Retention(RetentionPolicy.RUNTIME)
@Target({FIELD, METHOD, TYPE})
public @interface LoginProviderType {
LoginProviderName value();
public enum LoginProviderName {
PROVIDER1(LoginProvider1Impl.class),
PROVIDER2(LoginProvider2Impl.class);
private Class<? extends LoginProvider> loginProviderType;
private LoginProviderName(Class<? extends LoginProvider> loginProviderType) {
this.loginProviderType = loginProviderType;
}
public Class<? extends LoginProvider> getLoginProviderType() {
return loginProviderType;
}
}
}
And the factory:
@ApplicationScoped
public class LoginProviderFactory {
@Produces
@LoginProviderProducer
public LoginProvider createLoginProvider(@Any Instance<LoginProvider> instance, InjectionPoint injectionPoint) {
Annotated annotated = injectionPoint.getAnnotated();
LoginProviderType loginProviderTypeAnnotation = annotated.getAnnotation(LoginProviderType.class);
Class<? extends LoginProvider> loginProviderType = loginProviderTypeAnnotation.value().getLoginProviderType();
return instance.select(loginProviderType).get();
}
}
Finally, I have a helper that injects login providers:
@ApplicationScoped
public class LoginProviderHelperImpl implements LoginProviderHelper {
@Inject
@LoginProviderProducer
@LoginProviderType(LoginProviderName.PROVIDER1)
private LoginProvider provider1;
@Inject
@LoginProviderProducer
@LoginProviderType(LoginProviderName.PROVIDER2)
private LoginProvider provider2;
...
}
I am getting this error when using the helper:
org.jboss.weld.exceptions.UnsatisfiedResolutionException:
WELD-001308: Unable to resolve any beans for Type:
class com.xxx.LoginProvider1Impl; Qualifiers: [@javax.enterprise.inject.Any()]
Thank!
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1 answer
I added annotation @ApplicationScoped
to LoginProvider1Impl and LoginProvider2Impl.
Another way to do it is to change the factory method:
@ApplicationScoped
public class LoginProviderFactory {
@Produces
@LoginProviderProducer
public LoginProvider createLoginProvider(@Any Instance<LoginProvider> instance, InjectionPoint injectionPoint) {
Annotated annotated = injectionPoint.getAnnotated();
LoginProviderType loginProviderTypeAnnotation = annotated.getAnnotation(LoginProviderType.class);
Class<? extends LoginProvider> loginProviderType = loginProviderTypeAnnotation.value().getLoginProviderType();
//return instance.select(loginProviderType).get();
if (loginProviderType == LoginProvider1Impl.class) {
return new LoginProvider1Impl();
} else if (loginProviderType == LoginProvider2Impl.class) {
return new LoginProvider2Impl();
} else
return null;
}
}
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