Examples with CommitOrNotYetTime org.apache.cassandra.db.transaction.BatchMutateTransactionUtil.CommitOrNotYetTime used on opensource projects

Example 1 with CommitOrNotYetTime

use of org.apache.cassandra.db.transaction.BatchMutateTransactionUtil.CommitOrNotYetTime in project eiger by wlloyd.

the class ThriftConverter method findAndUpdatePendingTransactions.

/** Find the transactionIds of all pending transaction that could affect this column at the chosenTime
     * Also update any checked transactions ids that can affect this transaction
     * @param chosenColumn
     * @param chosenTime
     * @param currentlyVisibleColumn This is not necessary the chosen column, it contains the list of previousVersions
     * @return Relevant pending transactionIds, or null if none
     */
private static Set<Long> findAndUpdatePendingTransactions(org.apache.cassandra.db.Column chosenColumn, long chosenTime, org.apache.cassandra.db.Column currentlyVisibleColumn) {
    if (!(chosenColumn instanceof PendingTransactionColumn) && (!chosenColumn.isSetLatestValidTime() || chosenTime <= chosenColumn.latestValidTime())) {
        //if the chosenColumn isn't a PTC and EVT < chosen < LVT then no pending transactions
        assert chosenColumn.earliestValidTime() <= chosenTime;
        return null;
    } else {
        Set<Long> pendingTransactionIds = new HashSet<Long>();
        //lock for use of previousVersions
        synchronized (currentlyVisibleColumn) {
            for (IColumn oldColumn : currentlyVisibleColumn.previousVersions()) {
                if (oldColumn.earliestValidTime() > chosenTime) {
                    continue;
                } else {
                    if (oldColumn instanceof PendingTransactionColumn) {
                        long transactionId = ((PendingTransactionColumn) oldColumn).getTransactionId();
                        CommitOrNotYetTime checkResult = BatchMutateTransactionUtil.findCheckedTransactionResult(transactionId);
                        if (checkResult == null) {
                            pendingTransactionIds.add(transactionId);
                        } else {
                            applyCheckTransactionUpdate(currentlyVisibleColumn, transactionId, checkResult);
                        }
                    }
                }
            }
        }
        return pendingTransactionIds.size() == 0 ? null : pendingTransactionIds;
    }
}