README

$this->get('j3f.pager') to get Pager object

Pager Interface:

public function getPage();
$page: Integer, current page
public function setPage($page);
public function needPaging();
public function hasNext();
public function nextPage();
public function hasPrevious();
public function previousPage();
public function getCountPage();
public function getItemsPerPage();
$number: Integer, Number of results 
public function setNumberItems($number);

Pager Default Config (YML)

j3tel_pager: 
    default:
        items_around_active_page: 2 #The number of pages that are displayed around the active page
        items_per_page: 25
        first_page: 1
        block_item: 3 #The number of first and last pages to be displayed 
        class: '' #css class name applied to pager html element
        template: 'J3telPagerBundle:Default:pager.html.twig'

Render Pager in Twig

_pager is a variable previously set in controller with pager Object (service)
{% block pager %}
    {% if _pager is defined %}
            {{ j3fPager(_pager, app.request) }}
    {% endif %}
{% endblock %}