Thursday, July 16, 2015

Serialize manually using faster jackson library in spring

I am trying to get a JSON Structure for my object Order which internally has OrderDetails as oneToMany mapping,

public class Order {    
        All the fields associated with this class
    @OneToMany(fetch = FetchType.EAGER, mappedBy = "orderId")
    private Set<OrderDetails> orderDetails;

    //Getters for all properties defined in this class as jackson would depend on this thing
In my case I am using a textWebSocket which is expecting a message only in String format so I need to serialize the objects and push to the client, I am depending on faster jackson to do it and here it goes,

public String getObjectAsString()

    //orderObjs : Considering this is the list of objects of class Order

    ObjectMapper objMapper = new ObjectMapper();
            returnValue = objMapper.writerWithType(
                            List.class, Order.class)).writeValueAsString(
    return returnValue;


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