I am using DynamoDB for storage. I need to store a Java object in one attribute within a table. I see two approaches: One to convert the object to JSON using Jackson on the client side, and then store the JSON string in the attribute. Another way is to use DynamoDB List/Map types to store my object. What are the pros and cons of each (In terms of item size, flexibility in Dynamo DB queries)?

Storing JSON as string in DynamoDB vs List/Map types

I am using DynamoDB for storage. I need to store a Java object in one attribute within a table. I see two approaches:

One to convert the object to JSON using Jackson on the client side, and then store the JSON string in the attribute.
Another way is to use DynamoDB List/Map types to store my object.

What are the pros and cons of each (In terms of item size, flexibility in Dynamo DB queries)?