@reference returns null.

[Nandujee]

Hello,

I have created service say XX. I tried to access that service XX in other Service YY. 

When I try to use the XX like 

@Reference XX xx in YY service

I got a null value.

Code:

@Component(immediate = true)

@Service(value = XX.class)
public class XX{
//some methods
}

@Component(immediate =true)
@Service(value=ZZ.class)
public class YY implements ZZ{
    @Reference
    XX xx;

public SB  aa(String ss) {
        LOG.info(xx);//Null

}

When I access my service in my servlet, It is working fine..

like 

@Component(immediate = true)
@Service(javax.servlet.Filter.class)
public class FilterManager implements Filter {

    @Reference
    XX xx;

    LOG.info(xx);//I can get an object here

}

Kindly guide me, Is it possible to access service inside other service? 

Note:

In Felix console, can I see the service is active for both XX, YY.

Thanks

Nanda

[smacdonald2008 · Accepted solution]

Yes - as long as the service is part of the AEM Service container - you can inject it into another service. See this article as an example. Notice that we are injecting a DataSourcePool into a custom AEM service:

http://helpx.adobe.com/experience-manager/using/datasourcepool.html

[ankurk67503819]

Nandujee wrote...

Hello,

I have created service say XX. I tried to access that service XX in other Service YY. 

When I try to use the XX like 

@Reference XX xx in YY service

I got a null value.

Code:

@Component(immediate = true)

@Service(value = XX.class)
public class XX{
//some methods
}

@Component(immediate =true)
@Service(value=ZZ.class)
public class YY implements ZZ{
    @Reference
    XX xx;

public SB  aa(String ss) {
        LOG.info(xx);//Null

}

When I access my service in my servlet, It is working fine..

like 

@Component(immediate = true)
@Service(javax.servlet.Filter.class)
public class FilterManager implements Filter {

    @Reference
    XX xx;

    LOG.info(xx);//I can get an object here

}

Kindly guide me, Is it possible to access service inside other service? 

Note:

In Felix console, can I see the service is active for both XX, YY.

Thanks

Nanda

Hi ,

I am also facing the same issue, could you please let us know how did you resolve this.

In our case we have two different bundles and trying to access the service as

@Reference

ServiceXyz xyz;

But its giving null.

Regards

Ankur