Data

Cephalon.Data provides the transport-neutral data capability. Adapter packages wire each backend’s driver into the engine’s runtime catalog.

Packages

Click any package name to jump to its source-doc (canonical per-package detail).

Base

Package	NuGet ID	Maturity	Capability
Data (base)	Cephalon.Data	M3	Capability.Data
EntityFramework (adapter)	Cephalon.Data.EntityFramework	M3	Capability.Data

Backend adapters

Package	NuGet ID	Maturity	Engine:Data:Provider	Backend driver
Postgres	Cephalon.Data.Postgres	M3	"Postgres"	Npgsql
SQL Server	Cephalon.Data.SqlServer	M3	"SqlServer"	Microsoft.Data.SqlClient
MySQL	Cephalon.Data.MySql	M3	"MySql"	MySqlConnector
Oracle	Cephalon.Data.Oracle	M3	"Oracle"	Oracle.ManagedDataAccess.Core
MongoDB	Cephalon.Data.MongoDB	M3	"MongoDB"	MongoDB.Driver
Cassandra	Cephalon.Data.Cassandra	M3	"Cassandra"	CassandraCSharpDriver
ClickHouse	Cephalon.Data.ClickHouse	M3	"ClickHouse"	ClickHouse.Client
Elasticsearch	Cephalon.Data.Elasticsearch	M3	"Elasticsearch"	Elastic.Clients.Elasticsearch
OpenSearch	Cephalon.Data.OpenSearch	M3	"OpenSearch"	OpenSearch.Net
Redis	Cephalon.Data.Redis	M3	"Redis"	StackExchange.Redis
Neo4j	Cephalon.Data.Neo4j	M3	"Neo4j"	Neo4j.Driver
Qdrant	Cephalon.Data.Qdrant	M3	"Qdrant"	Qdrant.Client
NATS (KV/JetStream/Obj)	Cephalon.Data.Nats	M3	"Nats"	NATS.Client.Core
Debezium (CDC)	Cephalon.Data.Debezium	M2	(via Cephalon.Data:Cdc)	Debezium Engine .NET

Configuration shape

appsettings.json

{
  "Engine": {
    "Data": {
      "IdStrategy": "Sfid",                    // Cephalon.Ids.Sfid
      "Provider": "Postgres",                  // matches the adapter package
      "Migrations": { "ApplyOn": "Startup" },
      "Outbox": { "Enabled": true },
      "Inbox": { "Enabled": true }
    }
  },
  "ConnectionStrings": {
    "Default": "Host=…;Port=5432;Database=…;Username=…;Password=…"
  }
}

Full schema: Reference → Configuration → Data.

Read/write split

Both Engine:Data:ReadModel and Engine:Data:WriteModel accept the same shape — allowing separate providers per model:

{ "Engine": { "Data": {
    "WriteModel": { "Provider": "Postgres" },
    "ReadModel":  { "Provider": "ClickHouse" }
}}}

Requires both adapter packages installed.

See also

• Technology → Data — workload-to-backend matrix + use cases.
• Reference → Configuration → Data — full schema.