The reactive, scalable, and resilient CQRS storage and projection tool for services and applications built on the vlingo/platform.

The name "symbio" highlights the symbiotic relationship between domain models and persistence mechanisms. Domain models must be persisted and individual parts must be reconstituted to memory when needed. Persistence mechanisms crave data to store. Hence we can conclude that the two need and benefit from the other.

Interestingly too is that the name "symbio" ends with the letters, i and o, for input and output. The StateStorage, introduced next, produces domain model output to disk, and input from disk back to the domain model.

The Journal and related protocols support simple-to-use Event Sourcing, including JournalReader for streaming across all entries in the journal, and StreamReader for reaching individual "sub-streams" belonging to entities/aggregates in your application. There is a growing number of implementations:

TODO: List implementations

The ObjectStore is a simple object-relational mapped storage mechanism that can be run against a number of persistence engines. These are the available implementations:

TODO: List implementations

The StateStore is a simple CQRS Key-CLOB/BLOB storage mechanism that can be run against a number of persistence engines. Use it for both Command/Write Models and Query/Read Models. These are the available storage implementations:

• In-memory binary: InMemoryBinaryStateStoreActor
• In-memory text: InMemoryTextStateStoreActor

TODO: Add implementations

We welcome you to add support for your favorite database!

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