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Deligate design pattern

Forum|Forum|2 years ago
January 24, 2024
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For our requirement, I am creating a class called ListDelegate and implementing the List component interface. because i want to add extra functionlity sortBy ranking (which i added in page properties) ,like sortBy asc and desc present in list, how to solve this thing or any other solution?

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Best answer by Mahesh_Gunaje

These links might help you. check the solutions given by @veenavikraman

You are utilizing the Out of the box core component feature. Plus you are adding your own customization by utilizing the Sling delegation pattern.

https://experienceleaguecommunities.adobe.com/t5/adobe-experience-manager/delegation-pattern-for-sling-models-doesn-t-populate-all-the/m-p/435498

https://github.com/adobe/aem-core-wcm-components/wiki/Delegation-Pattern-for-Sling-Models

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@knki Check this https://github.com/adobe/aem-core-wcm-components/wiki/Delegation-Pattern-for-Sling-Models .also read https://medium.com/@veena.vikraman19/aem-avoiding-delegation-pattern-pitfalls-with-core-components-973c93a59fc7

If you are using everything from List https://github.com/adobe/aem-core-wcm-components/blob/main/bundles/core/src/main/java/com/adobe/cq/wcm/core/components/models/List.java as is , you can just add @delegate annotation.

But I assume you are going to add one more option for sorting . That means you will need to override https://github.com/adobe/aem-core-wcm-components/blob/main/bundles/core/src/main/java/com/adobe/cq/wcm/core/components/internal/models/v4/ListImpl.java the `getListItems` to modify the logic of `getStaticListItems` method to add the sorting mechanism.

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These links might help you. check the solutions given by @veenavikraman

You are utilizing the Out of the box core component feature. Plus you are adding your own customization by utilizing the Sling delegation pattern.

https://experienceleaguecommunities.adobe.com/t5/adobe-experience-manager/delegation-pattern-for-sling-models-doesn-t-populate-all-the/m-p/435498

https://github.com/adobe/aem-core-wcm-components/wiki/Delegation-Pattern-for-Sling-Models