@Override
public RandomAccessFilter buildRandomAccessFilter(String value, Properties prop)
throws IOException {
MultiValueFacetFilter f = new MultiValueFacetFilter(new MultiDataCacheBuilder(getName(),
_indexFieldName), value);
AdaptiveFacetFilter af = new AdaptiveFacetFilter(new SimpleDataCacheBuilder(getName(),
_indexFieldName), f, new String[] { value }, false);
return af;
}