/** 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); }