@Override
public int compareTo(Signature other) {
if (other == this || other == null) return 0;
return this.getContextNode().compareTo(other.getContextNode());
}
@Override
public boolean equals(Object object) {
if (object == null || !(object instanceof Signature)) return false;
if (object == this) return true;
Signature other = (Signature) object;
return this.getContextNode().equals(other.getContextNode());
}