[ 
https://issues.apache.org/jira/browse/SLING-4997?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Konrad Windszus updated SLING-4997:
-----------------------------------
    Description: 
With the changes in SLING-4056 there was a change on a method in the 
{{ModelFactory}}:
{{public boolean isModelClass(Class<?> modelClass)}} became
{{public boolean isModelClass(Object adaptable, Class<?> type)}}

The adaptable parameter was necessary because of the alternate adapter classes 
defined in 
https://sling.apache.org/documentation/bundles/models.html#specifying-an-alternate-adapter-class-since-sling-models-110.

If you now have a Model defined like this
{code}
@Model(adaptables = Resource.class)
public class MyModel
{code}

a call of {{ModelFactory.isModelClass(<some SlingHttpServletRequest>, 
MyModel.class)}} returns {{true}}, although the model class is only defined on 
the adaptable {{Resource}}. 

On the other hand if you define a model like this
{code}
@Model(adapters=MyModel, adaptables = Resource.class)
public class MyModelImpl implements MyModel
{code}
a call of {{ModelFactory.isModelClass(<some SlingHttpServletRequest>, 
MyModel.class)}} returns {{false}}.

  was:
With the changes in SLING-4056 there was a change on a method in the 
{{ModelFactory}}:
{{public boolean isModelClass(Class<?> modelClass)}} changed to
{{public boolean isModelClass(Object adaptable, Class<?> type)}}

The adaptable is necessary because of the alternate adapter classes defined in 
https://sling.apache.org/documentation/bundles/models.html#specifying-an-alternate-adapter-class-since-sling-models-110.

If you now have a Model defined like this
{code}
@Model(adaptables = Resource.class)
public class MyModel
{code}

a call of {{ModelFactory.isModelClass(<some SlingHttpServletRequest>, 
MyModel.class)}} returns {{true}}, although the model class is only defined on 
the adaptable {{Resource}}. 

On the other hand if you define a model like this
{code}
@Model(adapters=MyModel, adaptables = Resource.class)
public class MyModelImpl implements MyModel
{code}
a call of {{ModelFactory.isModelClass(<some SlingHttpServletRequest>, 
MyModel.class)}} returns {{false}}.


> Inconsistency in ModelFactory.isModelClass()
> --------------------------------------------
>
>                 Key: SLING-4997
>                 URL: https://issues.apache.org/jira/browse/SLING-4997
>             Project: Sling
>          Issue Type: Bug
>          Components: Extensions
>    Affects Versions: Sling Models API 1.2.0
>            Reporter: Konrad Windszus
>
> With the changes in SLING-4056 there was a change on a method in the 
> {{ModelFactory}}:
> {{public boolean isModelClass(Class<?> modelClass)}} became
> {{public boolean isModelClass(Object adaptable, Class<?> type)}}
> The adaptable parameter was necessary because of the alternate adapter 
> classes defined in 
> https://sling.apache.org/documentation/bundles/models.html#specifying-an-alternate-adapter-class-since-sling-models-110.
> If you now have a Model defined like this
> {code}
> @Model(adaptables = Resource.class)
> public class MyModel
> {code}
> a call of {{ModelFactory.isModelClass(<some SlingHttpServletRequest>, 
> MyModel.class)}} returns {{true}}, although the model class is only defined 
> on the adaptable {{Resource}}. 
> On the other hand if you define a model like this
> {code}
> @Model(adapters=MyModel, adaptables = Resource.class)
> public class MyModelImpl implements MyModel
> {code}
> a call of {{ModelFactory.isModelClass(<some SlingHttpServletRequest>, 
> MyModel.class)}} returns {{false}}.



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