Inheritance – AEM | AEM Community Blog Seeding

[kautuk_sahni]

Inheritance – AEM by Kiran Vedantam

Abstract

There are many ways inheritance is implemented in AEM. For today’s topic, we would be discussing a couple of use-cases on how to access the properties from either ancestral pages or components

Use case1:

Accessing a page property that is authored on the home page into its child pages using java code.

Solution: HierarchyNodeInheritanceValueMap

An InheritanceValueMap for a given page resource that will inherit values from ancestral pages.

On my /content/allaem/us/en page, I have added a property

A new object is created for HierarchyNodeInheritanceValueMap and current page content resource is passed into it as a parameter.

Here, the InheritanceValueMap checks for “jcr:description” in

/content/allaem/us/en/home/jcr:content
/content/allaem/us/en/jcr:content
/content/allaem/us/jcr:content
/content/allaem/jcr:content
If the property is found nowhere, null is returned.

This model is now referenced in the text component’s htl in the below way

${text @ context = textModel.isRichText ? 'html' : 'text'}

Inheritance Property is: ${inheritance.description}

Read Full Blog

Inheritance – AEM

Q&A

Please use this thread to ask the related questions.