AEM service impl class v/s Java Utility class or methods

Question

Hello All,

Difference between the use cases of AEM service class (i mean service impl class), Java utility classes.

Even for the service impl class, we are passing the resource resolver object, other resources. Same case for Java utility methods. Then, in which scenario, we need to prefer AEM service impl classes over Java utility class (or methods).

I know one point is: We can get Run mode specific config files details in service impl class. Where as these values to passed if you are calling java utility methods.

SureshDhulipudi · Accepted Answer

AEM Prefers this hierarchy

Java™ API preference “rule of thumb”

The general rule is to prefer the APIs/abstractions the following order:

AEM
Sling
JCR
OSGi

Please go through these articles / documentation for more details:

https://www.linkedin.com/pulse/aem-apis-application-programming-interfaces-suresh-dhulipudi-za2if%3FtrackingId=yLBXqoORInywlBo1r4pN8w%253D%253D/?trackingId=yLBXqoORInywlBo1r4pN8w%3D%3D

https://experienceleague.adobe.com/docs/experience-manager-learn/foundation/development/understand-java-api-best-practices.html?lang=en#:~:text=Always%20prefer%20the%20JCR%20APIs,for%20implementing%20a%20JCR%20repository.

kautuk_sahni · Answer

@mahesh_gunaje Did you find the suggestions from users helpful? Please let us know if more information is required. Otherwise, please mark the answer as correct for posterity. If you have found out solution yourself, please share it with the community.

Java™ API preference “rule of thumb”

Java™ API preference “rule of thumb”

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