protected override void ReadMetadata(string providerManifestToken, DbProviderServices providerServices, DbDataReader reader)
{
base.ReadMetadata(providerManifestToken, providerServices, reader);
var fieldCount = FieldCount;
var hasSpatialColumns = false;
DbSpatialDataReader spatialDataReader = null;
if (fieldCount > 0)
{
// FieldCount == 0 indicates NullDataReader
spatialDataReader = providerServices.GetSpatialDataReader(reader, providerManifestToken);
}
if (spatialDataReader != null)
{
_geographyColumns = new bool[fieldCount];
_geometryColumns = new bool[fieldCount];
for (var i = 0; i < fieldCount; i++)
{
_geographyColumns[i] = spatialDataReader.IsGeographyColumn(i);
_geometryColumns[i] = spatialDataReader.IsGeometryColumn(i);
hasSpatialColumns = hasSpatialColumns || _geographyColumns[i] || _geometryColumns[i];
Debug.Assert(!_geographyColumns[i] || !_geometryColumns[i]);
}
}
_spatialDataReader = hasSpatialColumns ? spatialDataReader : null;
}
protected override void ReadMetadata(
string providerManifestToken,
DbProviderServices providerServices,
DbDataReader reader)
{
base.ReadMetadata(providerManifestToken, providerServices, reader);
int fieldCount = this.FieldCount;
bool flag = false;
DbSpatialDataReader spatialDataReader = (DbSpatialDataReader)null;
if (fieldCount > 0)
{
spatialDataReader = providerServices.GetSpatialDataReader(reader, providerManifestToken);
}
if (spatialDataReader != null)
{
this._geographyColumns = new bool[fieldCount];
this._geometryColumns = new bool[fieldCount];
for (int ordinal = 0; ordinal < fieldCount; ++ordinal)
{
this._geographyColumns[ordinal] = spatialDataReader.IsGeographyColumn(ordinal);
this._geometryColumns[ordinal] = spatialDataReader.IsGeometryColumn(ordinal);
flag = flag || this._geographyColumns[ordinal] || this._geometryColumns[ordinal];
}
}
this._spatialDataReader = flag ? spatialDataReader : (DbSpatialDataReader)null;
}
private static ReaderMetadata ReadMetadata(string providerManifestToken, DbProviderServices providerSerivces, DbDataReader reader)
{
var fieldCount = reader.FieldCount;
var hasSpatialColumns = false;
DbSpatialDataReader spatialDataReader = null;
bool[] geographyColumns = null;
bool[] geometryColumns = null;
try
{
spatialDataReader = providerSerivces.GetSpatialDataReader(reader, providerManifestToken);
geographyColumns = new bool[fieldCount];
geometryColumns = new bool[fieldCount];
}
catch (ProviderIncompatibleException)
{
}
var dataTypeNames = new string[fieldCount];
var columnTypes = new Type[fieldCount];
var columnNames = new string[fieldCount];
for (var i = 0; i < fieldCount; i++)
{
dataTypeNames[i] = reader.GetDataTypeName(i);
columnTypes[i] = reader.GetFieldType(i);
columnNames[i] = reader.GetName(i);
if (spatialDataReader != null)
{
geographyColumns[i] = spatialDataReader.IsGeographyColumn(i);
geometryColumns[i] = spatialDataReader.IsGeometryColumn(i);
hasSpatialColumns = hasSpatialColumns || geographyColumns[i] || geometryColumns[i];
Debug.Assert(!geographyColumns[i] || !geometryColumns[i]);
}
}
return(new ReaderMetadata(
fieldCount, dataTypeNames, columnTypes, columnNames, hasSpatialColumns, spatialDataReader, geographyColumns, geometryColumns));
}