amazon web services - DynamoDb model extends from Java entity and this entity has a field of other java entity

Question

For example I have a class

@Getter
@Setter
class A {
    private String password;
}

@Getter
@Setter
class B{
    private String username;
    private A a;
}

@DynamoDbBean
class DynamoDbB extends B{

    @DynamoDbAttribute("username")
    @Override
    public String getUsername(){
        return super.getUsername();
    }
    public void setUsername(String username){
        super.setUserName(username);
    }

    @DynamoDbAttribute("password")
    @Override
    public String getPassword(){
        return super.getA().getPassword();
    }
    public void setPassword(String password){
        super.getA().setPassword(password);
    }

}

I want to create DynamoDbBean that can override or save each fields of A & B class. In DynamoDb table I need to have username and password column. How can I approach to this? Does anyone experienced in such cases?

I somehow managed to save the data but when getting an item I receive null in super object, and cannot invoke getA() method. Note: I'm using DynamoDbEnhanced Java SDK v2

question from:https://stackoverflow.com/questions/65926950/dynamodb-model-extends-from-java-entity-and-this-entity-has-a-field-of-other-jav

Answer 1

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