CODEWITHSUNDEEP
androidamazon-web-servicesamazon-dynamodbaws-sdk
Michael
Michael

Reputation: 276

Marshalling Undetermined data type

With a custom Marshaller I try to map a DynamoDB query to an object

class ownObject {
  private int myInteger;

  @DynamoDBMarshalling(marshallerClass = MasrshallAsInteger.class)
  @DynamoDBAttribute      
  public int getMyInteger {
    return myInteger;
  }

  public void setMyInteger(int newint) {
    myInteger = newint;
  }
}

Since the value myInteger in the db has both types String and Number, the SDK throws the Exception: "Expected S in value {N:123,}" if I use the marshaller and "Expected N in value {S:123,}" on an other object if I don't .

Is there any way to force the DynamoDB to use a custom marshaller and parse the value of the Key as String? Or is there any other way to parse a undetermined type of data but using PaginatedQueryList?

Upvotes: 1

Views: 333

Answers (1)

Alexander Patrikalakis
Alexander Patrikalakis

Reputation: 5205

I recommend you use the Document SDK to paginate, parse your items into Item objects, paginate, and then convert those Items to your domain.

Table table = new AmazonDynamoDBClient(new DefaultCredentialsProviderChain()).getTable("ownObject");
for (Item item : table.scan()) {
    //convert item to your domain object here
}

Upvotes: 1

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