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Prevented edge case of committing before logging 

Signed-off-by: Jim Martens <github@2martens.de>
This commit is contained in:
Jim Martens 2017-05-31 15:29:59 +02:00
parent 4cd09e31ee
commit 8ed0e171cc
1 changed files with 2 additions and 2 deletions
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4
04/src/PersistenceManager.java
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@ -53,8 +53,8 @@ public class PersistenceManager {
* @return transaction ID
*/
synchronized int beginTransaction() {
_transactions.put(_nextTransactionNumber, false);
log(_nextTransactionNumber, -1, "BOT", "");
_transactions.put(_nextTransactionNumber, false);
// return the next transaction number and increase it by one afterwards
return _nextTransactionNumber++;
}
@ -71,8 +71,8 @@ public class PersistenceManager {
}
// only perform commit actions if transaction isn't commited yet
if (!_transactions.get(taid)) {
_transactions.replace(taid, true);
log(taid, -1, "COMMIT", "");
_transactions.replace(taid, true);
}
}