@DynamoDBDocument not working

[ricardoseb]

I'm using dynamodb-enhanced with spring webflux, but in the moment to create my table using @DynamoDBDocument i get the error caused by : Converter not found for EnhancedType(java.util.Set.myClass$AttributeName)

Describe the issue

This is my entity class:

@DynamoDbBean
public class Item {
 private String id;
private Set<Tags> tags;

@DynamoDBDocument
    public static class Tags {
        private String name;
        private String value;

        @DynamoDBAttribute
        public String getName() {
            return name;
        }

        public void setName(String name) {
            this.name = name;
        }

        @DynamoDBAttribute
        public String getValue() {
            return value;
        }

        public void setValue(String value) {
            this.value = value;
        }
    }
@DynamoDbPartitionKey
    public String getId() {
        return id;
    }

@DynamoDBTypeConvertedJson
    public Set<Tags> getTags() {
        return tags;
    }

//setters ...
}

And i have a method creating the table:

@Bean
    public void createItemSchema() {
TableSchema<Item> ITEM_TABLE_SCHEMA = TableSchema.fromClass(Item.class);
 DynamoDbAsyncTable<Item> itemTable = dynamoDbEnhancedAsyncClient.table(
                "Item",
                ITEM_TABLE_SCHEMA
        );
        itemTable.createTable();

    }
}

also I leave the libraries that I am using (maven):

 <dependency>
            <groupId>com.amazonaws</groupId>
            <artifactId>aws-java-sdk-dynamodb</artifactId>
            <version>1.12.50</version>
        </dependency>
        <dependency>
            <groupId>software.amazon.awssdk</groupId>
            <artifactId>dynamodb-enhanced</artifactId>
            <version>2.17.22</version>
        </dependency>

Expected Behavior

Current Behavior

Your Environment

• AWS Java SDK version used: 1.12.50
• JDK version used: 11
• Operating System and version:mac os catalina 10.15.7

[debora-ito]

Hi @ricardoseb @DynamoDBDocument and @DynamoDBTypeConvertedJson are annotations used in the SDK v1 DynamoDB Mapper, they are not supported in the v2 DynamoDB Enhanced Client. Mixing annotations from the two high-level libraries in the same entity class won't work, you need to choose one.

Take a look at the Overview to see examples on how to flat map attributes in the Java SDK v2 DynamoDB Enhanced Client:
https://github.com/aws/aws-sdk-java-v2/tree/master/services-custom/dynamodb-enhanced#flat-map-attributes-from-another-class