Amazon.SimpleDB.AmazonSimpleDBClient.PutAttributes C# (CSharp) Method

AmazonSimpleDBClient Class Documentation Usage Examples Of Amazon.SimpleDB.AmazonSimpleDBClient::PutAttributes Mostrar archivo Open project: aws/aws-sdk-net

PutAttributes() public method

The PutAttributes operation creates or replaces attributes in an item. The client may specify new attributes using a combination of the Attribute.X.Name and Attribute.X.Value parameters. The client specifies the first attribute by the parameters Attribute.0.Name and Attribute.0.Value, the second attribute by the parameters Attribute.1.Name and Attribute.1.Value, and so on.

Attributes are uniquely identified in an item by their name/value combination. For example, a single item can have the attributes { "first_name", "first_value" } and { "first_name", second_value" }. However, it cannot have two attribute instances where both the Attribute.X.Name and Attribute.X.Value are the same.

Optionally, the requestor can supply the Replace parameter for each individual attribute. Setting this value to true causes the new attribute value to replace the existing attribute value(s). For example, if an item has the attributes { 'a', '1' }, { 'b', '2'} and { 'b', '3' } and the requestor calls PutAttributes using the attributes { 'b', '4' } with the Replace parameter set to true, the final attributes of the item are changed to { 'a', '1' } and { 'b', '4' }, which replaces the previous values of the 'b' attribute with the new value.

You cannot specify an empty string as an attribute name.

Because Amazon SimpleDB makes multiple copies of client data and uses an eventual consistency update model, an immediate GetAttributes or Select operation (read) immediately after a PutAttributes or DeleteAttributes operation (write) might not return the updated data.

The following limitations are enforced for this operation:

256 total attribute name-value pairs per item
One billion attributes per domain
10 GB of total user data storage per domain

/// The specified attribute does not exist. /// /// The value for a parameter is invalid. /// /// The request must contain the specified missing parameter. /// /// The specified domain does not exist. /// /// Too many attributes in this domain. /// /// Too many bytes in this domain. /// /// Too many attributes in this item. ///

public PutAttributes ( PutAttributesRequest request ) : PutAttributesResponse
request	PutAttributesRequest	Container for the necessary parameters to execute the PutAttributes service method.
return	PutAttributesResponse

        public PutAttributesResponse PutAttributes(PutAttributesRequest request)
        {
            var marshaller = new PutAttributesRequestMarshaller();
            var unmarshaller = PutAttributesResponseUnmarshaller.Instance;

            return Invoke<PutAttributesRequest,PutAttributesResponse>(request, marshaller, unmarshaller);
        }

Usage Example

Ejemplo n.º 1

Mostrar archivo

Archivo: RouteRepository.cs Proyecto: bobtjanitor/bob-the-janitor-sample-code

 public bool AddUpdateRoute(Route route)
 {
     bool success = true;
     using (AmazonSimpleDBClient client = new AmazonSimpleDBClient(_publicKey, _secretKey))
     {
         PutAttributesRequest request = new PutAttributesRequest
                                            {
                                                DomainName = DomainName,
                                                ItemName = route.Id.ToString()
                                            };
         request.Attribute.Add(new ReplaceableAttribute() { Name = "Name", Replace = true, Value = route.Name });
         request.Attribute.Add(new ReplaceableAttribute() { Name = "Distance", Replace = true, Value = route.Distance.ToString() });
         request.Attribute.Add(new ReplaceableAttribute() { Name = "Id", Replace = true, Value = route.Id.ToString() });
         request.Attribute.Add(new ReplaceableAttribute() { Name = "LastTimeRidden", Replace = true, Value = route.LastTimeRidden.ToShortDateString() });
         request.Attribute.Add(new ReplaceableAttribute() { Name = "Location", Replace = true, Value = route.Location });
         try
         {
             PutAttributesResponse response = client.PutAttributes(request);
         }
         catch(Exception repositoryError)
         {
             success = false;
         }
     }
     return success;
 }

All Usage Examples Of Amazon.SimpleDB.AmazonSimpleDBClient::PutAttributes

AmazonSimpleDBClient

BatchDeleteAttributes

BatchDeleteAttributesAsync

BatchPutAttributes

BatchPutAttributesAsync

CreateDomain

CreateDomainAsync

CreateSigner

DeleteAttributes

DeleteAttributesAsync

DeleteDomain