/** Get the subsequent operation (if any) */
public Operation getSubsequentOperation() {
return (iOperationNumber + 1 == iJob.countOperations()
? null
: iJob.getOperation(iOperationNumber + 1));
}
/** Get the preceeding operation (if any) */
public Operation getPrecedingOperation() {
return (iOperationNumber == 0 ? null : iJob.getOperation(iOperationNumber - 1));
}