datatable filter primefaces

If you have troubles in adapting the primfaces demo for your needs, there is a similiar implementation in ivy available in the JsfWorkflowUi project. You can find the project in the Engine.zip under the /projects folder (see Screenshot).

To implement the filtering over all fields of a dataClass you could iterate over all fields by reflection like this:

public class ReflectionUtil {

    public static List<Data> filter(List<Data> tableData, String filterKeyword) throws NoSuchFieldException
    {
        List<Data> filtered = new ArrayList<Data>();
        for(Data data : tableData)
        {
            for(java.lang.reflect.Field field : data.getClass().getDeclaredFields())
            {
                Object fieldValue = data.get(field.getName());
                if (fieldValue != null && 
                        fieldValue.toString().contains(filterKeyword))
                {
                    filtered.add(data);
                    break; // no need to match all fields if one matches
                }
            }
        }
        return filtered;
    }

}