DynamoDB EnhancedAttributeValue "set" operations should accept sets

[chrylis]

Describe the feature

DynamoDB supports "set" types for homogenous multi-valued data, and the EnhancedAttributeValue type provides mapper methods for those (e.g., fromSetOfNumbers). However, the signatures of those methods accept specifically List. Instead, they should accept Collection.

Use Case

I would like to pass an actual Set implementation to fromSetOf*.

Proposed Solution

No response

Other Information

No response

Acknowledgements

• I may be able to implement this feature request
• This feature might incur a breaking change

AWS Java SDK version used

2.17.284

JDK version used

AdoptOpenJDK-11.0.11+9

Operating System and version

Gentoo Linux

[yasminetalby]

Hello @chrylis ,

Thank you very much for your submission.
The Set Types (NS, BS and SS type) are all defined as list by the API see hence why the SDK accept list specifically for those method.
This would be more of a service behavior rather than an SDK behavior feature request.

Best,

Yasmine

[chrylis]

The DynamoDB documentation explicitly says that the set types display set semantics, not list semantics, and this is the behavior I observe when using the service:

Each value within a set must be unique. The order of the values within a set is not preserved.

[yasminetalby]

Hello @chrylis ,

Update: The team has discussed the feature-request and has added it to the backlog.
There will be an update posted on this issue once the feature-request is implemented.

Thank you very much for your submission and collaboration.

Sincerely,

Yasmine.