IDataProvider IDataProviderFactory.GetDataProvider(IEnumerable <NamedValue> attributes)
{
var version = attributes.FirstOrDefault(_ => _.Name == "version")?.Value;
var assemblyName = attributes.FirstOrDefault(_ => _.Name == "assemblyName")?.Value;
var dialect = OracleVersion.v12;
if (version?.Contains("11") == true)
{
dialect = OracleVersion.v11;
}
var provider = OracleProvider.Managed;
if (assemblyName == OracleProviderAdapter.DevartAssemblyName)
{
provider = OracleProvider.Devart;
}
else if (assemblyName == OracleProviderAdapter.NativeAssemblyName)
{
provider = OracleProvider.Native;
}
return(OracleTools.GetDataProvider(dialect, provider));
}
public OracleDataProvider(string name)
: base(name, null)
{
//SqlProviderFlags.IsCountSubQuerySupported = false;
SqlProviderFlags.IsIdentityParameterRequired = true;
SqlProviderFlags.MaxInListValuesCount = 1000;
SetCharField("Char", (r, i) => r.GetString(i).TrimEnd());
SetCharField("NChar", (r, i) => r.GetString(i).TrimEnd());
// ReaderExpressions[new ReaderInfo { FieldType = typeof(decimal), ToType = typeof(TimeSpan) }] =
// (Expression<Func<IDataReader,int,TimeSpan>>)((rd,n) => new TimeSpan((long)rd.GetDecimal(n)));
_sqlOptimizer = new OracleSqlOptimizer(SqlProviderFlags);
SetField <IDataReader, decimal>((r, i) => OracleTools.DataReaderGetDecimal(r, i));
}
IDataProvider IDataProviderFactory.GetDataProvider(IEnumerable <NamedValue> attributes)
{
var assemblyName = attributes.FirstOrDefault(_ => _.Name == "assemblyName");
return(OracleTools.GetDataProvider(null, assemblyName?.Value));
}