private void filter(HeaderCell cell, String filterValue) {
        JSONObject cfg = getWidgetConfiguration();
        if (filterValue != null && filterValue.isEmpty()) {
            filterValue = null;
        }
        cell.setFilterValue(cfg, filterValue);
    }
Filter using the widget configuration for "filterDelay" and "filterEvent".

@param cell the cell to filter
@param filterValue the value to pass to the filter.
primefaces-selenium/primefaces-selenium-components/src/main/java/org/primefaces/selenium/component/base/AbstractTable.java