ArxDynamoConnection class · DynamoDB in C#

Definition

Namespace: ARX.SDK.DynamoDb.Services
Package: ARX.SDK.DynamoDb

public sealed class ArxDynamoConnection : ArxConnection

ARX transactions on DynamoDB. DynamoDB has no interactive transaction: an ArxDynamoTransaction collects the writes of the calls made with it and sends them as one TransactWriteItems at CommitAsync, all or nothing, across tables, with every condition kept.

Constructor

ArxDynamoConnection(ArxDynamoDbService service)
A connection for this service's transactions. It holds no network connection: DynamoDB has none to hold.
Parameter Type Description
service ArxDynamoDbService The service whose client and model the transaction uses.

Parameter	Type	Description
`service`	`ArxDynamoDbService`	The service whose client and model the transaction uses.

Usage

A line from a verified sample; the full, runnable code is on its page.

await using var connection = new ArxDynamoConnection(service);

Create in an ARX transaction, scenario 1

Used in:

Create in an ARX transactionCreate
Replace a record in a transactionDelete

Notes

What follows from that: a transaction holds at most 100 writes (a call that would pass the limit is ARX8001 and the transaction stays usable); reads made with the transaction see committed data only, not its own pending writes; a write's failure (a duplicate, a missing item) shows at commit, which then throws and writes nothing; there are no savepoints. No driver types in your code.