Question

This bean State :

public class State {
    
    private boolean isSet;

    @JsonProperty("isSet")
    public boolean isSet() {
        return isSet;
    }

    @JsonProperty("isSet")
    public void setSet(boolean isSet) {
        this.isSet = isSet;
    }

}

is sent over the wire using the ajax success callback :

success : function(response) {  
    if(response.State.isSet){   
        alert('success called successfully)
    }
}
            

Is the annotation @JsonProperty required here? What is the advantage of using it?
I think I can remove this annotation without causing any side effects.

Reading about this Jackson Annotations I don’t know when this is required to be used ?

Answer 1

Here’s a good example. I use it to rename the variable because the JSON is coming from a .Net environment where properties start with an upper-case letter.

public class Parameter {
  @JsonProperty("Name")
  public String name;
  @JsonProperty("Value")
  public String value; 
}

This correctly parses to/from the JSON:

"Parameter":{
  "Name":"Parameter-Name",
  "Value":"Parameter-Value"
}