public virtual DcSchema CreateSchema(string name, DcSchemaKind schemaType)
{
DcSchema schema;
if (schemaType == DcSchemaKind.Dc)
{
schema = new Schema(name, this);
}
else if (schemaType == DcSchemaKind.Csv)
{
schema = new SchemaCsv(name, this);
}
else if (schemaType == DcSchemaKind.Oledb)
{
schema = new SchemaOledb(name, this);
}
else if (schemaType == DcSchemaKind.Rel)
{
throw new NotImplementedException("This schema type is not implemented.");
}
else
{
throw new NotImplementedException("This schema type is not implemented.");
}
_schemas.Add(schema);
NotifyAdd(schema);
return(schema);
}
public void OledbReadTest() // Load Oledb schema and data
{
// Important: this test uses Oledb engine which is architecture dependent (32 or 64) and hence the test can fail depending on what kind of Oledb engine is present (installed)
// The test executable has to have the same architecture as the installed Oledb engine (and it can depend on, say, the MS Office architecture)
// In VS, this can be set in: Menu | Test | Test Settings | Default Processor Architecture
// Connection object
ConnectionOledb conn = new ConnectionOledb();
conn.ConnectionString = Northwind;
conn.Open();
List <string> tables = conn.ReadTables();
conn.Close();
Assert.AreEqual(20, tables.Count);
DcSpace space = new Space();
// Db
SchemaOledb top = (SchemaOledb)space.CreateSchema("", DcSchemaKind.Oledb);
top.connection = conn;
//
// Load schema
//
/*
* top.LoadSchema();
*
* Assert.AreEqual(20, top.Root.SubTables.Count);
*
* Assert.AreEqual(11, top.GetSubTable("Order Details").Columns.Count);
* Assert.AreEqual("Orders", top.GetSubTable("Order Details").GetColumn("Order ID").Output.Name);
*
* // Load data manually
* System.Data.DataTable dataTable = top.LoadTable((TableRel)top.GetSubTable("Order Details"));
* Assert.AreEqual(58, dataTable.Rows.Count);
* Assert.AreEqual(37, dataTable.Rows[10][2]);
*/
//
// Configure import
//
/*
* DcSchema schema = space.CreateSchema("My Schema", DcSchemaKind.Dc);
*
* DcTable orderDetailsTable = space.CreateTable("Order Details", schema.Root);
*
* // Create mapping
* Mapper mapper = new Mapper();
* Mapping map = mapper.CreatePrimitive(top.GetSubTable("Order Details"), orderDetailsTable, schema);
* map.Matches.ForEach(m => m.TargetPath.Segments.ForEach(p => p.Add()));
*
* // Create generating/import column
* DcColumn dim = schema.CreateColumn(map.SourceSet.Name, map.SourceSet, map.TargetSet, false);
* dim.Definition.Mapping = map;
* dim.Definition.DefinitionType = DcColumnDefinitionType.LINK;
* dim.Definition.IsAppendData = true;
*
* dim.Add();
*
* schema.AddTable(orderDetailsTable, null, null);
* orderDetailsTable.Definition.Populate();
*
* Assert.AreEqual(58, orderDetailsTable.Data.Length);
*/
}
