Sling Model with method having @PostConstruct - how to debug | Community
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jydps87387977
jydps87387977
Level 3
Mar 9, 2016 9:54 PM UTC
Solved

Sling Model with method having @PostConstruct - how to debug

Hi,

1. Can you please recommend the steps to debug the sling model.

2. If I have the method with @PostConstruct, when will it get executed ?

3. If there is a constructor, when will it get executed ?

 

++++ EXAMPLE ++++

@Model(adaptables=Resource.class)
public class TestModel {

    @Inject @Named("path")
    private String id;

    @Inject @Named("jcr:title")
    private String title;

    @PostConstruct
    protected void init() {
        LOG.info("Inside init() ");

    }

    @Inject
    public TestModel(Resource resource) {

        final String id = resource.getPath();
     

    }

}

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    Jitendra_S_Toma
    Jitendra_S_TomaAccepted solution
    Level 10
    Mar 10, 2016 4:44 AM UTC

    Hi,

    Here is a very good Sling model document. I guess you might have gone through if not, please do. Let me know if you have some other question which is not covered in the document. Regarding debugging, Logging could be a good option. I don't know about Eclipse way of debugging. But, people do use eclipse as well.

    https://sling.apache.org/documentation/bundles/models.html#postconstruct-methods

    ----Jitendra

    View reply

    6 replies

    Feike_Visser1
    Feike_Visser1
    Employee
    Aug 29, 2017 6:55 PM UTC

    PostConstruct is only used by sling-models. With WCMUsePojo you have the activate method.

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      chanchalesj6077
      chanchalesj6077
      Level 2
      Aug 29, 2017 8:29 AM UTC

      what if you have WCMUSEPOJO working but not the sling models as sling models-->@postconstruct method not at all being called form the HTL component in AEM 6.3 .

      Any clue ?

      Translate
      vyan024
      vyan024
      Level 2
      Aug 10, 2016 11:59 AM UTC

      Did you find any better way to debug sling model via eclipse? 

      Translate
      jydps87387977
      jydps87387977Author
      Level 3
      Mar 10, 2016 3:18 PM UTC

      Thank you for sharing the links. They helped.

      Also, I found one more good link with many Model examples:

      MODEL EXAMPLES:

      http://svn.apache.org/repos/asf/sling/trunk/bundles/extensions/models/impl/src/test/java/org/apache/sling/models/testmodels/classes/

      Translate
      edubey
      edubey
      Level 10
      Mar 10, 2016 4:52 AM UTC

      Here is one article which shows usage of postconstruct

      http://adobeaemclub.com/sightly-pagination-component-using-sling-model-and-javascript-use-api-in-aem-6-1/

      Sling model works on injection, once all injections are completed this will method (@postconstruct) gets called.

      In order to debug you can simply configure slf4j logger in your class and logs can be seen in error.log of your project.

      Translate
      Jitendra_S_Toma
      Jitendra_S_TomaAccepted solution
      Level 10
      Mar 10, 2016 4:44 AM UTC

      Hi,

      Here is a very good Sling model document. I guess you might have gone through if not, please do. Let me know if you have some other question which is not covered in the document. Regarding debugging, Logging could be a good option. I don't know about Eclipse way of debugging. But, people do use eclipse as well.

      https://sling.apache.org/documentation/bundles/models.html#postconstruct-methods

      ----Jitendra

      Translate
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