code: @Override
  	public void getEntities(SocializeSession session, SortOrder sortOrder, EntityListener listener, String...keys) {
  		Map<String, String> extraParams = null;
  		
  		if(!sortOrder.equals(SortOrder.CREATION_DATE)) {
  			extraParams = new HashMap<String, String>();
  			extraParams.put("sort", sortOrder.name().toLowerCase() );
  		}
  		
  		listAsync(session, ENDPOINT, null, "entity_key", extraParams, 0, SocializeConfig.MAX_LIST_RESULTS, listener, keys);
  	}
docs: /* (non-Javadoc)
  @see com.socialize.api.action.EnitySystem#listEntities(com.socialize.api.SocializeSession, com.socialize.listener.entity.EntityListener, java.lang.String)