public void IColumnExtensions_FindComponent()
{
IColumn <object> column = ColumnFactory.Build(new ColumnDetails("sample", "string", null), 0);
Assert.IsNotNull(column.FindComponent <IndexedColumn>());
Assert.IsNotNull(column.FindComponent <UntypedColumn <ByteBlock> >());
Assert.IsNotNull(column.FindComponent <ByteBlockColumn>());
Assert.IsNotNull(column.FindComponent <SortedColumn <ByteBlock> >());
Assert.IsNull(column.FindComponent <ValueTypeColumn <int> >());
IColumn c2 = new ValueTypeColumn <short>(short.MinValue);
Assert.IsNull(c2.FindComponent <SortedColumn <short> >());
Assert.IsNotNull(c2.FindComponent <ValueTypeColumn <short> >());
}
private static IUntypedColumn Build <T>(ColumnDetails details, string[] typeComponents, ushort initialCapacity) where T : struct, IComparable <T>, IEquatable <T>
{
// Convert the default for the new column
Value defaultValue = Value.Create(details.Default);
T dAsT;
if (!defaultValue.TryConvert <T>(out dAsT))
{
dAsT = default(T);
}
// Build the raw column
IColumn <T> columnSoFar = new ValueTypeColumn <T>(dAsT, initialCapacity);
// Wrap the column as requested (the last component is the type itself)
for (int i = typeComponents.Length - 2; i >= 0; --i)
{
switch (typeComponents[i])
{
case "sorted":
columnSoFar = CreateSortedColumn(columnSoFar, initialCapacity);
break;
default:
throw new ArribaException(StringExtensions.Format("Column Type Wrapper '{0}' is not currently supported.", typeComponents[i]));
}
}
// De-type the column for generic use
var utc = new UntypedColumn <T>(columnSoFar);
// Tell it the column name
utc.Name = details.Name;
return(utc);
}
