IWP70 | Mobile Enterprise Application Platform

This week we are meeting again with our big friend Rob Tiffany. This time we talk about NoSQL. It's an easy way to store your data offline on your phone. During this conversation Rob explains what NoSQL is, why you would use it and what the challenges are.
Below are the code samples how to perform the CRUD operations on your in memory classes.
Define Table schema (Entity)
publicsealedclassCustomer { publicint CustomerId { get; set; } publicstring FirstName { get; set; } publicstring LastName { get; set; } }
Define Table (Generic List to hold collection of Customer objects)
publicstaticList<Customer> Customers { get; set; }
Create Table
Customers = newList<Customer>();
Save Table
publicstaticasyncTask SaveChanges<T>(T collection, String tableName) { var file = awaitApplicationData.Current.LocalFolder.CreateFileAsync(tableName, CreationCollisionOption.ReplaceExisting); var outStream = await file.OpenStreamForWriteAsync(); var serializer = newDataContractJsonSerializer(typeof(T)); serializer.WriteObject(outStream, collection); await outStream.FlushAsync(); outStream.Dispose(); }
Calling the Save Table Method
await SaveChanges<List<Customer>>(Customers, "Customer");
Load Table
publicstaticasyncTask<T> LoadTable<T>(string tableName) { StorageFile file = awaitApplicationData.Current.LocalFolder.GetFileAsync(tableName); Stream stream = await file.OpenStreamForReadAsync(); DataContractJsonSerializer serializer = newDataContractJsonSerializer(typeof(T)); T table = (T)serializer.ReadObject(stream); stream.Dispose(); return table; }
Calling the Load Table Method
Customers = await LoadTable<List<Customer>>("Customer");
Insert Customers
Customers.Add(newCustomer { CustomerId = 1, FirstName = "Andy", LastName = "Wigley" });
Update Customers
foreach (var item in Customers.Where((c) => c.CustomerId == 2)) { item.FirstName = "Mike"; }
Delete Customers
Customers.RemoveAll((c) => c.CustomerId == 2);
Select Customers
var query = from c inTableService.Customers select c; CustomersList.ItemsSource = query.ToList();
Tweet to @robtiffany or @mahoekst
Cool topic. It took me a while to realize that all there seems to be about this approach is in the SaveChanges/LoadTable methods provided.
Nice, I like this topic.
Thanks for the code examples & the overview video.
Please provide some more context for other (LOB), Website applications though.
Or apps that need to log a lot, these could benefit a lot from NoSQL approach.
How should we setup, which products does MS provide? Is there a whitepaper on setting these things up, outside WP.
Thanks,
What do you mean by other (LOB), Website applications?
Like the title "IWP71" --> WP 7.1