@Override
public boolean equals(Object o) {
if (this == o) {
return true;
} else if (o instanceof SparseVector) {
SparseVector vo = (SparseVector) o;
int sz = size();
int osz = vo.size();
if (sz != osz) {
return false;
} else {
if (!this.keySet().equals(vo.keySet())) {
return false; // same keys
}
// we know that sparse vector values are always in key order. so just compare them.
return this.values().equals(vo.values());
}
} else {
return false;
}
}
