public static IQueryable <UtilityRow> CreateRowQuery(string accountName, string tableName, DbTableDataContext context)
{
DbTableRowQueryProvider <UtilityRow> dbTableRowQueryProvider = new DbTableRowQueryProvider <UtilityRow>(context, accountName, tableName);
if (context.SignedAccountIdentifier != null && (context.SignedAccountIdentifier.StartingPartitionKey != null || context.SignedAccountIdentifier.StartingRowKey != null || context.SignedAccountIdentifier.EndingPartitionKey != null || context.SignedAccountIdentifier.EndingRowKey != null))
{
KeyBounds keyBound = new KeyBounds()
{
MinPartitionKey = context.SignedAccountIdentifier.StartingPartitionKey,
MinRowKey = context.SignedAccountIdentifier.StartingRowKey,
MaxPartitionKey = context.SignedAccountIdentifier.EndingPartitionKey,
MaxRowKey = context.SignedAccountIdentifier.EndingRowKey
};
dbTableRowQueryProvider.SASKeyBounds = keyBound;
}
return(new DbTableRowQueryable <UtilityRow>(dbTableRowQueryProvider));
}
private T ExecuteQuery <T>(ChangeDescription changeDescription)
{
((DbTableRowQueryProvider <T>)changeDescription.QueryableRow.Provider).CheckForReadPermission = false;
DbTableRowQueryProvider <T> provider = (DbTableRowQueryProvider <T>)changeDescription.QueryableRow.Provider;
IEnumerator <T> enumerator = provider.Execute <IEnumerator <T> >(changeDescription.QueryableRow.Expression);
if (!enumerator.MoveNext())
{
return(default(T));
}
T current = enumerator.Current;
if (enumerator.MoveNext())
{
throw new DataServiceException(400, "Multiple objects match the query");
}
return(current);
}
