com.firebase.client

Interface ValueEventListener

public interface ValueEventListener

Classes implementing this interface can be used to receive events about data changes at a location. Attach the listener to a location user Query.addValueEventListener(ValueEventListener).

Method Summary

Methods

Modifier and Type	Method and Description
void	onCancelled(FirebaseError error) This method will be triggered in the event that this listener either failed at the server, or is removed as a result of the security rules.
void	onDataChange(DataSnapshot snapshot) This method will be called with a snapshot of the data at this location.

Method Detail

onDataChange

void onDataChange(DataSnapshot snapshot)

This method will be called with a snapshot of the data at this location. It will also be called each time that data changes.

Parameters:

snapshot - The current data at the location

onCancelled

void onCancelled(FirebaseError error)

This method will be triggered in the event that this listener either failed at the server, or is removed as a result of the security rules. For more information on securing your data, see: Security Quickstart