private void removeTemporaryLobs(boolean onTimeout) {
if (temporaryLobs != null) {
for (Value v : temporaryLobs) {
if (!v.isLinkedToTable()) {
v.remove();
}
}
temporaryLobs.clear();
}
if (temporaryResultLobs != null && temporaryResultLobs.size() > 0) {
long keepYoungerThan = System.currentTimeMillis() - database.getSettings().lobTimeout;
while (temporaryResultLobs.size() > 0) {
TimeoutValue tv = temporaryResultLobs.getFirst();
if (onTimeout && tv.created >= keepYoungerThan) {
break;
}
Value v = temporaryResultLobs.removeFirst().value;
if (!v.isLinkedToTable()) {
v.remove();
}
}
}
}
private void endTransaction() {
if (removeLobMap != null && removeLobMap.size() > 0) {
if (database.getMvStore() == null) {
// need to flush the transaction log, because we can't unlink
// lobs if the commit record is not written
database.flush();
}
for (Value v : removeLobMap.values()) {
v.remove();
}
removeLobMap = null;
}
unlockAll();
}
/**
* Set the value of the given variable for this session.
*
* @param name the name of the variable (may not be null)
* @param value the new value (may not be null)
*/
public void setVariable(String name, Value value) {
initVariables();
modificationId++;
Value old;
if (value == ValueNull.INSTANCE) {
old = variables.remove(name);
} else {
// link LOB values, to make sure we have our own object
value = value.copy(database, LobStorageFrontend.TABLE_ID_SESSION_VARIABLE);
old = variables.put(name, value);
}
if (old != null) {
// remove the old value (in case it is a lob)
old.remove();
}
}
