aws-sdk-java-v2-dynamodb

# AWS SDK for Java 2.x - Amazon DynamoDB ## Overview Provides DynamoDB patterns using AWS SDK for Java 2.x with Enhanced Client for type-safe CRUD, queries, batch operations, transactions, and Spring Boot integration. ## When to Use - CRUD operations on DynamoDB items - Querying tables with sort keys or GSI - Batch operations for multiple items - Atomic transactions across tables - Spring Boot integration with DynamoDB ## Instructions 1. Add AWS SDK DynamoDB dependencies to `pom.xml` 2. Configure client setup (low-level or Enhanced Client) 3. Define entity classes with `@DynamoDbBean` annotations 4. Perform operations using `DynamoDbTable` (CRUD, query, scan, batch, transactions) 5. Handle partial failures with retry logic and exponential backoff 6. Use repository pattern for Spring Boot integration ## Dependencies Add to `pom.xml`: ```xml <!-- Low-level DynamoDB client --> <dependency> <groupId>software.amazon.awssdk</groupId> <artifactId>dynamodb</artifactId> </dependency> <!-- Enhanced client (recommended) --> <dependency> <groupId>software.amazon.awssdk</groupId> <artifactId>dynamodb-enhanced</artifactId> </dependency> ``` ## Client Setup ### Low-Level Client ```java import software.amazon.awssdk.regions.Region; import software.amazon.awssdk.services.dynamodb.DynamoDbClient; DynamoDbClient dynamoDb = DynamoDbClient.builder() .region(Region.US_EAST_1) .build(); ``` ### Enhanced Client (Recommended) ```java import software.amazon.awssdk.e...