David, it is not currently possible to specify the Operator to use when Conditions to DynamoDB Models, but this is on our near-term roadmap. We have slated it for an upcoming sprint, so it should be available soon.
DynamoDB has a limited set of operators that it supports on Text fields, so what we can do is limited by DynamoDB’s capabilities, but here is what we are targeting to provide:
Single specified value
- Equals
- Does not equal
- Starts with
- Contains
- Does not contain
Multiple specified values
- In
- Not in
