Difference between @JsonIgnore and @JsonBackReference, @JsonManagedReference

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Lets suppose we have

private class Player {
    public int id;
    public Info info;
}
private class Info {
    public int id;
    public Player parentPlayer;
}

// something like this:
Player player = new Player(1);
player.info = new Info(1, player);

Serialization

@JsonIgnore 

private class Info {
    public int id;
    @JsonIgnore
    public Player parentPlayer;
}

and @JsonManagedReference + @JsonBackReference 

private class Player {
    public int id;
    @JsonManagedReference
    public Info info;
}

private class Info {
    public int id;
    @JsonBackReference
    public Player parentPlayer;
}

will produce same output. And output for demo case from above is: {"id":1,"info":{"id":1}}

Deserialization

Here is main difference, because deserialization with @JsonIgnore
will just set null to the field so in our example parentPlayer will be == null.

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But with @JsonManagedReference + @JsonBackReference we will get Info referance there

enter image description here

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