Obtaining The Reference And Key In Custom Object Firebase Android

I'm looking to pass the reference of the dataSnapshot and key of each specific object into a custom 'Message' object. I've tried using the key 'String key' within the Message.class

Solution 1:

When you get a Message instance from a DataSnapshot, you are likely doing:

Message message = snapshot.getValue(Message.class)

Since this is starting from getValue(), the message will not contain the key of the DataSnapshot.

What you can do is set the key yourself after reading the Message:

Message message = snapshot.getValue(Message.class);
message.setKey(snapshot.getKey());

You'll want to mark the getKey() as @JsonIgnore in that case, to ensure that Jackson tries to auto-populate or serialize it.

Solution 2:

I ended up adding a static method to create the object from the DataSnapshot:

publicstatic Message FromSnapshot(DataSnapshot snapshot){
    Message msg = snapshot.getValue(Message.class);
    msg.setKey(snapshot.getKey());

    return msg;
}