@Override
public boolean equals(Object obj) {
if (this == obj) return true;
if (obj == null) return false;
if (getClass() != obj.getClass()) return false;
Update other = (Update) obj;
if (!getOuterType().equals(other.getOuterType())) return false;
if (key == null) {
if (other.key != null) return false;
} else if (!key.equals(other.key)) return false;
if (type != other.type) return false;
return true;
}
