/** remove the reader from the set we're modifying */
public void cancel(SSTableReader cancel) {
logger.debug("Cancelling {} from transaction", cancel);
assert originals.contains(cancel)
: "may only cancel a reader in the 'original' set: " + cancel + " vs " + originals;
assert !(staged.contains(cancel) || logged.contains(cancel))
: "may only cancel a reader that has not been updated or obsoleted in this transaction: "
+ cancel;
originals.remove(cancel);
marked.remove(cancel);
maybeFail(unmarkCompacting(singleton(cancel), null));
}
/**
* remove the provided readers from this Transaction, and return a new Transaction to manage them
* only permitted to be called if the current Transaction has never been used
*/
public LifecycleTransaction split(Collection<SSTableReader> readers) {
logger.debug("Splitting {} into new transaction", readers);
checkUnused();
for (SSTableReader reader : readers)
assert identities.contains(reader.instanceId)
: "may only split the same reader instance the transaction was opened with: " + reader;
for (SSTableReader reader : readers) {
identities.remove(reader.instanceId);
originals.remove(reader);
marked.remove(reader);
}
return new LifecycleTransaction(tracker, operationType, readers);
}