AEM Slightly - How to call java method whose name is stored in variable - expression inside expression doesn’t work in sightly

Question

In AEM 6.5 sightly I have initialized the sling model class. Now, I want to call the method from that class. But method name is read from some variable (basically I read method name from other location). When I use that variable it doesn’t work. I know sightly doesn’t allow expression inside an expression, so would like to know if there is an alternative to fit this need.

<sly data-sly-use.detailsModel="org.svc.core.model.DetailsModel"/>

${detailsModel.{methodNameVariable}} - doesn’t work (if the method name is read from some variable)

${detailsModel.methodName} - works (if put the method name directly there)

Anudeep_Garnepudi · Accepted Answer

@karanmahi

I think this is not directly possible. One way you can do is, in your Model class itself call the method inside a getter method and return the value. Call that Sling Model getter method in HTL.

To call method using method name(String/Variable) use reflection API.

Refer: https://www.tutorialspoint.com/How-do-I-invoke-a-Java-method-when-given-the-method-name-as-a-string#:~:text=You%20can%20invoke%20the%20method,the%20form%20of%20a%20string.

Asutosh_Jena_ · Answer

Hi @karanmahi

What is the requirement where you are reading the method name from a variable?

You need to call the method directly by the sling model reference to make it work.

<sly data-sly-use.detailsModel="org.svc.core.model.DetailsModel"/>
${detailsModel.methodName}

Thanks!

Sign up

Login with SSO

Login to the community

Login with SSO

Scanning file for viruses.

This file cannot be downloaded