How to call the component Models asynchronously | Community
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kbitra1998
June 2, 2022

How to call the component Models asynchronously

  • June 2, 2022
  • 2 replies
  • 1980 views

Hello, in the component, I'm having trouble with Models calls. This page is taking an extremely long time to render.
I've made a page with five components, let's call them C1,C2,C3,C4,C5, and we've used C2 four times and C4 ten times.
The page's components are arranged in the following order: C1,C2,C2,C2,C2,C3,C4,C4,C4,C4,C4,C4,C4,C4,C4,C4,C4,C4,C4,C4,C4,C4,C4,C4,C4,C4,C4,C4,C4,C4,C4,C4,C4,C4,C4,C4,C4,C4,C4,C4,
I've set a timer in the logs. I have observed page is rendering order of the components.
C1-300ms, C2-400ms, C2-400ms, C2-300ms, C2-300ms, C3-400ms, C4-400ms, C4-400ms, C4-400ms, C4-400ms, C4-400ms, C4-400ms, C4-400ms, C4-400ms, C4-400ms, C4-400ms, C4-400 C4-400ms C4-400ms C4-400ms C4-400ms C4-400ms Finally, C4-400ms and C5-100ms are used.
As a result, it will take at least 10-15 seconds for the page to render.
How to call C1,C2,C3,C4,C5 components at the same time, rather than in the order they appear on the page?

 

 

 

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2 replies

SantoshSai
Community Advisor
SantoshSaiCommunity Advisor
Community Advisor
June 2, 2022

Hi @kbitra1998 

you may take a look at Sling Model Caching. This does exactly what you want, as long as it is adaptable from Resource.

https://sling.apache.org/documentation/bundles/models.html#caching

You only have to specify cache=true in the Model-annotation.

@Model(adaptable = SlingHttpServletRequest.class, cache = true)
public class ModelClass {
   ...
}

Hope that helps!

Regards,
Santosh

Santosh Sai
    RajaShankar
    Community Advisor
    RajaShankarCommunity Advisor
    Community Advisor
    June 2, 2022

    Hi @santoshsai 

    It was a good pointer for caching the Adapted resource for all instance. But i have a doubt in this as mentioned by @kbitra1998  they are trying to use same component in multiple instance within same page exampleC1,C2,C2,C2 .If i cache the Sling model will it not return same attributes/values as that of first instance of C2 even for second and third case. LEt say if C2 first instance as a text value "This is text component1" in this case second and third instance also will get same value right."assert object1 == object2;"

    Please clarify.

    Regards,

    Rajashankar.R

     

     

      SantoshSai
      Community Advisor
      SantoshSaiCommunity Advisor
      Community Advisor
      June 2, 2022

      @rajashankar 
      No, Have a loot at below use case and result.

      @Model(adaptables = Resource.class, cache = true)
public class HelloWorldModel {
private String message;
..............
}

      Santosh Sai
        arunpatidar
        Community Advisor
        arunpatidarCommunity Advisor
        Community Advisor
        June 2, 2022

        Hi,

        If your page are cached at dispatcher than this issue will not occurs.

        I believe you are caching this page.

        but if you just want to show as per type than simple javascript can do a job.

        Arun Patidar
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