hasPermissionData()

yolufudo
yolufudo Newcomer
in Elektron

Hi,


Inside OnRefreshMsge() and OnUpdateMsg() I check if item has permission data by calling


message.hasPermissionData().


For the same item hasPermissionData() gives me TRUE if i'm inside a Refresh Message and FALSE if i'm inside an Update Message.


Is it normal? I'm struggling to understand why?


Thank you

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Best Answer

  • Gurpreet
    Gurpreet admin
    Answer ✓

    Hi @yolufudo,

    Yes, this is normal. The permission data is an optional field of Refresh and Update messages. Once this data is provided to an application in the Refresh message, there is no need to provide it again in update message, if the permissionable entity (PE) hasn't changed. This is very similar to how update messages only carry the fields which have changed since the last Refresh or Update.

    Here us the snippet from the EMA documentation:

    1664284966953.png


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