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();
}
}
