EventListener

public interface EventListener<T>


An interface for event listeners.

Summary

Public methods

abstract void

onEvent will be called with the new value or the error if an error occurred.

Public methods

onEvent

abstract void onEvent(@Nullable T value, @Nullable FirebaseFirestoreException error)

onEvent will be called with the new value or the error if an error occurred. It's guaranteed that exactly one of value or error will be non-null.

Parameters
@Nullable T value

The value of the event. null if there was an error.

@Nullable FirebaseFirestoreException error

The error if there was error. null otherwise.