@Override
public int hashCode() {
final int prime = 31;
int result = 1;
result = prime * result + ((href == null) ? 0 : href.hashCode());
result = prime * result + id;
result = prime * result + level;
result = prime * result + ((name == null) ? 0 : name.hashCode());
result = prime * result + ((parent == null) ? 0 : parent.hashCode());
result = prime * result + sort;
return result;
}