@Override
    public String toString() {
        return "HeaderCell{text=" + getColumnTitle().getText() + "}";
    }
Filter the column using these values.

@param filterValue the value to filter for
@param filterEvent the event causing the filter to trigger such as "keyup" or "enter"
@param filterDelay the delay in milliseconds if a "keyup" filter
primefaces-selenium/primefaces-selenium-components/src/main/java/org/primefaces/selenium/component/model/datatable/HeaderCell.java