// ignore
}
}
} else if (sourceFilter instanceof XBooleanFilter) {
XBooleanFilter booleanFilter = (XBooleanFilter) sourceFilter;
for (FilterClause clause : booleanFilter.clauses()) {
if (clause.getOccur() == BooleanClause.Occur.MUST || clause.getOccur() == BooleanClause.Occur.SHOULD) {
flatten(clause.getFilter(), reader, flatQueries);
}
}
}