public OracleDataProvider(string name, OracleVersion version)
: base(
name,
GetMappingSchema(name, OracleProviderAdapter.GetInstance(name).MappingSchema),
OracleProviderAdapter.GetInstance(name))
{
Version = version;
//SqlProviderFlags.IsCountSubQuerySupported = false;
SqlProviderFlags.IsIdentityParameterRequired = true;
SqlProviderFlags.IsCommonTableExpressionsSupported = true;
SqlProviderFlags.IsSubQueryOrderBySupported = true;
SqlProviderFlags.IsDistinctOrderBySupported = false;
SqlProviderFlags.IsUpdateFromSupported = false;
SqlProviderFlags.DefaultMultiQueryIsolationLevel = IsolationLevel.ReadCommitted;
if (version >= OracleVersion.v12)
{
SqlProviderFlags.IsApplyJoinSupported = true;
}
SqlProviderFlags.MaxInListValuesCount = 1000;
SetCharField("Char", (r, i) => r.GetString(i).TrimEnd(' '));
SetCharField("NChar", (r, i) => r.GetString(i).TrimEnd(' '));
SetCharFieldToType <char>("Char", (r, i) => DataTools.GetChar(r, i));
SetCharFieldToType <char>("NChar", (r, i) => DataTools.GetChar(r, i));
if (version == OracleVersion.v11)
{
_sqlOptimizer = new Oracle11SqlOptimizer(SqlProviderFlags);
}
else
{
_sqlOptimizer = new Oracle12SqlOptimizer(SqlProviderFlags);
}
SetProviderField(Adapter.OracleBFileType, Adapter.OracleBFileType, Adapter.GetOracleBFileReaderMethod, dataReaderType: Adapter.DataReaderType);
SetProviderField(Adapter.OracleBinaryType, Adapter.OracleBinaryType, Adapter.GetOracleBinaryReaderMethod, dataReaderType: Adapter.DataReaderType);
SetProviderField(Adapter.OracleBlobType, Adapter.OracleBlobType, Adapter.GetOracleBlobReaderMethod, dataReaderType: Adapter.DataReaderType);
SetProviderField(Adapter.OracleClobType, Adapter.OracleClobType, Adapter.GetOracleClobReaderMethod, dataReaderType: Adapter.DataReaderType);
SetProviderField(Adapter.OracleDateType, Adapter.OracleDateType, Adapter.GetOracleDateReaderMethod, dataReaderType: Adapter.DataReaderType);
SetProviderField(Adapter.OracleDecimalType, Adapter.OracleDecimalType, Adapter.GetOracleDecimalReaderMethod, dataReaderType: Adapter.DataReaderType);
SetProviderField(Adapter.OracleIntervalDSType, Adapter.OracleIntervalDSType, Adapter.GetOracleIntervalDSReaderMethod, dataReaderType: Adapter.DataReaderType);
SetProviderField(Adapter.OracleIntervalYMType, Adapter.OracleIntervalYMType, Adapter.GetOracleIntervalYMReaderMethod, dataReaderType: Adapter.DataReaderType);
SetProviderField(Adapter.OracleStringType, Adapter.OracleStringType, Adapter.GetOracleStringReaderMethod, dataReaderType: Adapter.DataReaderType);
SetProviderField(Adapter.OracleTimeStampType, Adapter.OracleTimeStampType, Adapter.GetOracleTimeStampReaderMethod, dataReaderType: Adapter.DataReaderType);
SetProviderField(Adapter.OracleTimeStampLTZType, Adapter.OracleTimeStampLTZType, Adapter.GetOracleTimeStampLTZReaderMethod, dataReaderType: Adapter.DataReaderType);
SetProviderField(Adapter.OracleTimeStampTZType, Adapter.OracleTimeStampTZType, Adapter.GetOracleTimeStampTZReaderMethod, dataReaderType: Adapter.DataReaderType);
SetProviderField(Adapter.OracleXmlTypeType, Adapter.OracleXmlTypeType, Adapter.GetOracleXmlTypeReaderMethod, dataReaderType: Adapter.DataReaderType);
// native provider only
if (Adapter.OracleRefType != null)
{
SetProviderField(Adapter.OracleRefType, Adapter.OracleRefType, Adapter.GetOracleRefReaderMethod !, dataReaderType: Adapter.DataReaderType);
}
ReaderExpressions[new ReaderInfo {
ToType = typeof(DateTimeOffset), ProviderFieldType = Adapter.OracleTimeStampTZType, DataReaderType = Adapter.DataReaderType
}]
= Adapter.ReadDateTimeOffsetFromOracleTimeStampTZ;
ReaderExpressions[new ReaderInfo {
ToType = typeof(decimal), ProviderFieldType = Adapter.OracleDecimalType, DataReaderType = Adapter.DataReaderType
}] = Adapter.ReadOracleDecimalToDecimalAdv;
ReaderExpressions[new ReaderInfo {
ToType = typeof(decimal), FieldType = typeof(decimal), DataReaderType = Adapter.DataReaderType
}] = Adapter.ReadOracleDecimalToDecimalAdv;
ReaderExpressions[new ReaderInfo {
ToType = typeof(int), FieldType = typeof(decimal), DataReaderType = Adapter.DataReaderType
}] = Adapter.ReadOracleDecimalToInt;
ReaderExpressions[new ReaderInfo {
ToType = typeof(long), FieldType = typeof(decimal), DataReaderType = Adapter.DataReaderType
}] = Adapter.ReadOracleDecimalToLong;
ReaderExpressions[new ReaderInfo {
FieldType = typeof(decimal), DataReaderType = Adapter.DataReaderType
}] = Adapter.ReadOracleDecimalToDecimal;
ReaderExpressions[new ReaderInfo {
ToType = typeof(DateTimeOffset), ProviderFieldType = Adapter.OracleTimeStampLTZType, DataReaderType = Adapter.DataReaderType
}] = Adapter.ReadDateTimeOffsetFromOracleTimeStampLTZ;
}
protected OracleDataProvider(string name, OracleProvider provider, OracleVersion version)
: base(name, GetMappingSchema(provider, version), OracleProviderAdapter.GetInstance(provider))
{
Provider = provider;
Version = version;
SqlProviderFlags.IsIdentityParameterRequired = true;
SqlProviderFlags.IsCommonTableExpressionsSupported = true;
SqlProviderFlags.IsSubQueryOrderBySupported = true;
SqlProviderFlags.IsDistinctOrderBySupported = false;
SqlProviderFlags.IsUpdateFromSupported = false;
SqlProviderFlags.DefaultMultiQueryIsolationLevel = IsolationLevel.ReadCommitted;
SqlProviderFlags.IsNamingQueryBlockSupported = true;
SqlProviderFlags.RowConstructorSupport = RowFeature.Equality | RowFeature.CompareToSelect | RowFeature.In |
RowFeature.Update | RowFeature.Overlaps;
if (version >= OracleVersion.v12)
{
SqlProviderFlags.IsApplyJoinSupported = true;
}
SqlProviderFlags.MaxInListValuesCount = 1000;
SetCharField("Char", (r, i) => r.GetString(i).TrimEnd(' '));
SetCharField("NChar", (r, i) => r.GetString(i).TrimEnd(' '));
SetCharFieldToType <char>("Char", DataTools.GetCharExpression);
SetCharFieldToType <char>("NChar", DataTools.GetCharExpression);
if (version == OracleVersion.v11)
{
_sqlOptimizer = new Oracle11SqlOptimizer(SqlProviderFlags);
}
else
{
_sqlOptimizer = new Oracle12SqlOptimizer(SqlProviderFlags);
}
foreach (var(type, method) in Adapter.CustomReaders)
{
SetProviderField(type, type, method, dataReaderType: Adapter.DataReaderType);
}
if (Adapter.OracleTimeStampTZType != null)
{
ReaderExpressions[new ReaderInfo {
ToType = typeof(DateTimeOffset), ProviderFieldType = Adapter.OracleTimeStampTZType, DataReaderType = Adapter.DataReaderType
}] = Adapter.ReadDateTimeOffsetFromOracleTimeStampTZ;
}
else
{
ReaderExpressions[new ReaderInfo {
ToType = typeof(DateTimeOffset), ProviderFieldType = Adapter.OracleTimeStampType, DataReaderType = Adapter.DataReaderType, DataTypeName = "TIMESTAMP WITH TIME ZONE"
}] = Adapter.ReadDateTimeOffsetFromOracleTimeStampTZ;
}
if (Adapter.ReadDateTimeOffsetFromOracleTimeStamp != null)
{
ReaderExpressions[new ReaderInfo {
ToType = typeof(DateTimeOffset), ProviderFieldType = Adapter.OracleTimeStampType, DataReaderType = Adapter.DataReaderType, DataTypeName = "TIMESTAMP"
}] = Adapter.ReadDateTimeOffsetFromOracleTimeStamp;
}
if (Adapter.ReadOracleDecimalToDecimalAdv != null)
{
ReaderExpressions[new ReaderInfo {
ToType = typeof(decimal), ProviderFieldType = Adapter.OracleDecimalType, DataReaderType = Adapter.DataReaderType
}] = Adapter.ReadOracleDecimalToDecimalAdv;
ReaderExpressions[new ReaderInfo {
ToType = typeof(decimal), FieldType = typeof(decimal), DataReaderType = Adapter.DataReaderType
}] = Adapter.ReadOracleDecimalToDecimalAdv;
}
if (Adapter.ReadOracleDecimalToInt != null)
{
ReaderExpressions[new ReaderInfo {
ToType = typeof(int), FieldType = typeof(decimal), DataReaderType = Adapter.DataReaderType
}] = Adapter.ReadOracleDecimalToInt;
}
if (Adapter.ReadOracleDecimalToLong != null)
{
ReaderExpressions[new ReaderInfo {
ToType = typeof(long), FieldType = typeof(decimal), DataReaderType = Adapter.DataReaderType
}] = Adapter.ReadOracleDecimalToLong;
}
if (Adapter.ReadOracleDecimalToDecimal != null)
{
ReaderExpressions[new ReaderInfo {
FieldType = typeof(decimal), DataReaderType = Adapter.DataReaderType
}] = Adapter.ReadOracleDecimalToDecimal;
}
if (Adapter.ReadDateTimeOffsetFromOracleTimeStampLTZ != null)
{
ReaderExpressions[new ReaderInfo {
ToType = typeof(DateTimeOffset), ProviderFieldType = Adapter.OracleTimeStampLTZType, DataReaderType = Adapter.DataReaderType
}] = Adapter.ReadDateTimeOffsetFromOracleTimeStampLTZ;
}
}
