// The provider manifest token helps to distinguish between store versions.
// We have only one backend version.
// However, use the connection passed in to determine whether
// the provider is local provider or remote provider
//
/// <summary>
/// Returns provider manifest token for a given connection.
/// </summary>
/// <param name="connection">Connection to find manifest token from.</param>
/// <returns>The provider manifest token for the specified connection.</returns>
protected override string GetDbProviderManifestToken(DbConnection connection)
{
Check.NotNull(connection, "connection");
// vamshikb: Do we need to validate the connection and connection string
// before returning the ProviderManifestToken????
// Determine the type of DbConnection
// This method should never be called at runtime, so the provider
// must be remote provider.
// Throw if it is none.
//
if (connection.GetType() == typeof(SqlCeConnection))
{
_isLocalProvider = true;
}
else if (RemoteProviderHelper.CompareObjectEqualsToType(connection, RemoteProvider.SqlCeConnection))
{
_isLocalProvider = false;
}
else
{
throw ADP1.Argument(EntityRes.GetString(EntityRes.Mapping_Provider_WrongConnectionType, "SqlCeConnection"));
}
return(SqlCeProviderManifest.Token40);
}
// Private helper for validatingn the SqlCeConnection.
private void ValidateConnection(DbConnection connection)
{
// Check whether it is a valid SqlCeConnection.
var isValid = _isLocalProvider
? connection is SqlCeConnection
: RemoteProviderHelper.CompareObjectEqualsToType(connection, RemoteProvider.SqlCeConnection);
if (!isValid)
{
throw ADP1.InvalidConnectionType();
}
}
