ErrorHandler's API

ErrorHandlerAPI.java

service
  .getMessages()
  .subscribe(new Subscriber<List<Message>>(){
    @Override
    public void onCompleted(){}
    
    @Override
    public void onError(Throwable e) {
      ErrorHandler
      .create()
      .on(StaleDataException.class, (throwable, errorHandler) -> {
          reloadList();
          errorHandler.skipDefaults();
      })
      .on(404, (throwable, errorHandler) -> {
          // We handle 404 specifically on this screen by overriding the default action
          displayAlert("Could not load new messages");
          errorHandler.skipDefaults();
      })
      .handle(e);
    }
    
    @Override
    public void onNext(List<Message> messages) {}
  });