@Override
        public boolean equals(Object o) {
            if ( ! super.equals(o)) return false;

            var other = (EntryBase)o;
            if ( ! Objects.equals(this.key, other.key)) return false;
            if ( this.subQueryBitmap != other.subQueryBitmap) return false;
            return true;
        }
An entry in a predicate item. This is immutable.
container-search/src/main/java/com/yahoo/prelude/query/PredicateQueryItem.java