Class CassandraEventSourcingConfiguration
Namespace: Cephalon.EventSourcing.Cassandra
Assembly: Cephalon.EventSourcing.Cassandra.dll
Holds the CQL DDL template for bootstrapping the Cassandra event-store table.
public static class CassandraEventSourcingConfigurationInheritance
Section titled “Inheritance”object ← CassandraEventSourcingConfiguration
Inherited Members
Section titled “Inherited Members”object.Equals(object?), object.Equals(object?, object?), object.GetHashCode(), object.GetType(), object.MemberwiseClone(), object.ReferenceEquals(object?, object?), object.ToString()
Fields
Section titled “Fields”CreateTableCql
Section titled “ CreateTableCql”CQL DDL template for creating the event streams table.
The {0} placeholder must be substituted with the fully qualified table name
(optionally including keyspace prefix).
public const string CreateTableCql = "\n CREATE TABLE IF NOT EXISTS {0} (\n stream_id text,\n stream_version bigint,\n event_type text,\n payload text,\n occurred_at_utc timestamp,\n appended_at_utc timestamp,\n PRIMARY KEY (stream_id, stream_version)\n ) WITH CLUSTERING ORDER BY (stream_version ASC)"Field Value
Section titled “Field Value”Remarks
Section titled “Remarks”The composite primary key (stream_id, stream_version) with clustering order
ASC on stream_version makes per-stream range scans efficient and
enforces uniqueness at the partition/clustering-key level. LWT INSERT IF NOT EXISTS
uses this same uniqueness constraint to detect concurrent-write conflicts.