Feature Matrix
The following is a list of availability of all major features across the Kalix SDKs. Lightbend strives for feature parity across our SDKs, however in some cases new features roll out for some SDKs before others.
| Feature | Spring | Java | Scala | JavaScript |
|---|---|---|---|---|
Code-first Development |
✓ |
x |
x |
x |
Protocol-first Development |
x |
✓ |
✓ |
✓ |
gRPC services |
x |
✓ |
✓ |
✓ |
REST services |
✓ |
✓ |
✓ |
✓ |
Value Entities |
✓ |
✓ |
✓ |
✓ |
Event Sourced Entities |
✓ |
✓ |
✓ |
✓ |
Replicated Entities |
x |
✓ |
✓ |
✓ |
Views |
✓ |
✓ |
✓ |
✓ |
Actions |
✓ |
✓ |
✓ |
✓ |
Access Control Lists (ACLs) |
✓ |
✓ |
✓ |
✓ |
Service to Service Eventing |
✓ |
✓ |
✓ |
x |
View Joins |
✓ |
✓ |
✓ |
x |
Timers |
✓ |
✓ |
✓ |
x |
Entity Deletion |
✓ |
✓ |
✓ |
x |