private String stringRepresentation;
public TransactionIdentifier(String memberName, long counter) {
this.memberName = Preconditions.checkNotNull(memberName, "memberName should not be null");
this.counter = counter;
private String stringRepresentation;
public TransactionIdentifier(String memberName, long counter) {
this.memberName = Preconditions.checkNotNull(memberName, "memberName should not be null");
this.counter = counter;