本主題討論 DynamoDB 增強型用戶端 API 的基本功能,並將其與標準 DynamoDB 用戶端 API進行比較。 如果您是初次使用 DynamoDB 增強型用戶端 API,我們建議您瀏覽簡介教學課程,熟悉基本類別。 Java 中的 DynamoDB 項目 DynamoDB 資料表存放項目。根據您的使用案例,Java 端的項目可以採用靜態結構化資料或動態建立的...
The example creates an item, retrieves it, performs various updates, and finally deletes the item. Note The SDK for Java also provides an object persistence model, enabling you to map your client-side classes to DynamoDB tables. This approach can reduce the amount of code that you have to...
DynamoDB: UpdateItem, Ignore Null values in ExpressionAttributeValues 解决方案是 DynamoDBJava版本有UPDATE_SKIP_NULL_ATTRIBUTES支持跳过空参数,但是Node.js 并没有该操作,不过他自己实现了该方案。 尝试之后,发现只支持主键不为空,但是子键没有办法,也可能是我的Node.js 功力不够,无法实现,时间问题,放弃的方案...
importcom.amazonaws.services.dynamodbv2.datamodeling.DynamoDBQueryExpression;importcom.amazonaws.services.dynamodbv2.datamodeling.DynamoDBScanExpression;importcom.amazonaws.services.dynamodbv2.datamodeling.QueryResultPage;importcom.amazonaws.services.dynamodbv2.datamodeling.ScanResultPage;importcom.amazonaws.se...
TheDynamoDbEnhancedClientprovides a programming model that closely resembles the Java Persistence API (JPA), whereby a class can be transformed into an entity by applying specific annotations. 3. Creating a Table in DynamoDB 3.1 Model/Entity ...
In this quick article, we have learned how to create a Lambda application with DynamoDB and Java 8. The detailed instructions should give you a head start in setting everything up. And, as always, the full source code for the example app can be found over on GitHub.Baeldung...
@DynamoDBTable(tableName = "xxx")publicclassUser {privateString id =null;privateString name =null;privateString telephone =null; publicUser(String id, String name, String telephone) {super();this.id =id;this.name =name;this.telephone =telephone; ...
The first step to getting going with the DynamoDB Enhanced Client for Java is to include a dependency for it in your project. The example here will show you how to do it in Maven, but there are more instructions in thedeveloper guidefor using other dependency management fr...
The first step to getting going with the DynamoDB Enhanced Client for Java is to include a dependency for it in your project. The example here will show you how to do it in Maven, but there are more instructions in the developer guide for using other dependency management...
dynamodb-import-export-tool - Import and export examples. dynamodb-online-index-violation-detector - Finds violations on an online GSI's hash key and range key. dynamodb-streams-kinesis-adapter - Kinesis interface to consume and process data from a DynamoDB stream. dynamodb-tictactoe-example-ap...