Java – add / remove items to the array in Amazon dynamodb

I'm looking for the most efficient atomic method to add an item to an array in a dynamodb object Now, I see that the only way to add content to the array atomically is to use the versioning method: get the field to be updated, add / remove values, and perform conditional updates using the "version" field in the row But it doesn't seem efficient to me Is there a better way?

Solution

The updateitem operation has add and delete operations If used on a collection, the operation adds / removes the specified value from the collection If used on a number, the add action increments or decrements the number atomically

It is important to remember that dynamodb actually supports collections, not arrays Therefore, adding or deleting values is atomic in nature