Skip to content

Tag: amazon-dynamodb

Query DynamoDb Global Secondary Index

i am trying out dynamodb locally and got the following table: I want to query it with Java like this: But it throws a Exception with “QUery Key Condition not supported”. I dont understand this, because in the docs, the “<” operator is described as regular operation. Can anybody help me Answer DDB Query() requires a key condition that includes

Converting POJO into map

I have a Java class having 10 attributes, I want to convert this into 3 maps(Breaking it into 5,3,2 fields resepectively). I did some research and found that Jackson’s ObjectMapper can be used by doing something like this: This will be creating a single map for all the attributes in my POJO. What I want is have this POJO converted