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