/**
* Max timestamp in journal for append operation. Objects with timestamp older then this will
* always be rejected.
*
* @return max timestamp older then which append is impossible.
* @throws com.nfsdb.exceptions.JournalException if journal cannot calculate timestamp.
*/
public long getAppendTimestampLo() throws JournalException {
if (appendTimestampLo == -1) {
if (nonLagPartitionCount() == 0) {
return 0;
}
FixedColumn column = lastNonEmptyNonLag().getTimestampColumn();
long sz;
if ((sz = column.size()) > 0) {
appendTimestampLo = column.getLong(sz - 1);
} else {
return 0;
}
}
return appendTimestampLo;
}
private void switchAppendPartition(long timestamp) throws JournalException {
boolean computeTimestampLo = appendPartition == null;
appendPartition = getAppendPartition(timestamp);
Interval interval = appendPartition.getInterval();
if (interval == null) {
appendTimestampHi = Long.MAX_VALUE;
} else {
appendTimestampHi = interval.getHi();
}
if (computeTimestampLo) {
FixedColumn column = appendPartition.getTimestampColumn();
long sz;
if ((sz = column.size()) > 0) {
appendTimestampLo = column.getLong(sz - 1);
}
} else {
appendTimestampLo = appendPartition.getInterval().getLo();
}
}