static void Main(string[] args)
{
try
{
DynamoDBContext context = new DynamoDBContext(client);
// 1. Create a book.
DimensionType myBookDimensions = new DimensionType()
{
Length = 8M,
Height = 11M,
Thickness = 0.5M
};
Book myBook = new Book
{
Id = 501,
Title = "AWS SDK for .NET Object Persistence Model Handling Arbitrary Data",
ISBN = "999-9999999999",
BookAuthors = new List <string> {
"Author 1", "Author 2"
},
Dimensions = myBookDimensions
};
context.Save(myBook);
// 2. Retrieve the book.
Book bookRetrieved = context.Load <Book>(501);
// 3. Update property (book dimensions).
bookRetrieved.Dimensions.Height += 1;
bookRetrieved.Dimensions.Length += 1;
bookRetrieved.Dimensions.Thickness += 0.2M;
// Update the book.
context.Save(bookRetrieved);
Console.WriteLine("To continue, press Enter");
Console.ReadLine();
}
catch (AmazonDynamoDBException e) { Console.WriteLine(e.Message); }
catch (AmazonServiceException e) { Console.WriteLine(e.Message); }
catch (Exception e) { Console.WriteLine(e.Message); }
}
public DynamoDBEntry ToEntry(object value)
{
DimensionType bookDimensions = value as DimensionType;
if (bookDimensions == null)
{
throw new ArgumentOutOfRangeException();
}
string data = string.Format("{1}{0}{2}{0}{3}", " x ",
bookDimensions.Length, bookDimensions.Height, bookDimensions.Thickness);
DynamoDBEntry entry = new Primitive
{
Value = data
};
return(entry);
}
public object FromEntry(DynamoDBEntry entry)
{
Primitive primitive = entry as Primitive;
if (primitive == null || !(primitive.Value is String) || string.IsNullOrEmpty((string)primitive.Value))
{
throw new ArgumentOutOfRangeException();
}
string[] data = ((string)(primitive.Value)).Split(new string[] { " x " }, StringSplitOptions.None);
if (data.Length != 3)
{
throw new ArgumentOutOfRangeException();
}
DimensionType complexData = new DimensionType
{
Length = Convert.ToDecimal(data[0]),
Height = Convert.ToDecimal(data[1]),
Thickness = Convert.ToDecimal(data[2])
};
return(complexData);
}
