CA.Blocks.DataAccess 3.4.172-prerelease

• Homepage
• Documentation
• NuGet Package Sqlite
• Source Code

The CA.Blocks.DataAccess is designed as a micro-ORM for relational databases. Its core functionality focuses on reducing the object-relational impedance mismatch that exists between the relational world and the object world of objects in .NET. It was designed to work with onion / layered and CQRS-type architectures and can work with or without dependency injection. The blocks are built on top of ADO.NET the core layer is implemented within CA.Blocks.DataAccess. This layer has no dependence on any provider, each provider is implemented as implementation on the abstract core. These are all independent assemblies such that each of the providers can be isolated. If you using MySQL you do not need to pull in the SQL server dependencies and visa versa.

If there no direct provider you can create use a OleDB connection the example below will make a connection to a Jet database the format used for Ms Access

	public class AccessDb : AbstractedDbDataAccessConnector<OleDbConnection, OleDbDataAdapter, OleDbCommand>
	{
		// https://learn.microsoft.com/en-us/dotnet/framework/data/adonet/ole-db-schema-collections 

		public AccessDb(string fileName, string password) : base(
			new SimpleConnectionStringDataAccessConfig($"Provider=Microsoft.Jet.OLEDB.4.0;Data Source={fileName};Jet OLEDB:System Database=system.mdw;Jet OLEDB:Database Password={password};"))
		{

		}
		
		public IList<string> GetTableNames()
		{
			DataTable dt = GetSchema("Tables");
			return dt.CreateDataReader().ToSingleNamedColumnList<string>("TABLE_NAME")
				.Where( x => !x.StartsWith("MSys") )  // <-- this is an access concern 
				.ToList();
		}

		public IList<string> GetColumnNames()
		{
			DataTable dt = GetSchema("Columns");
			return dt.CreateDataReader().ToSingleNamedColumnList<string>("TABLE_NAME")
				.Where(x => !x.StartsWith("MSys"))  // <-- this is an access concern 
				.ToList();
		}

		// create your data access methods as normal here
		

		
	}