public CFRowAdder resetCollection(String cql3ColumnName) {
ColumnDefinition def = getDefinition(cql3ColumnName);
assert def.type.isCollection() && def.type.isMultiCell();
Composite name = cf.getComparator().create(prefix, def);
cf.addAtom(new RangeTombstone(name.start(), name.end(), timestamp - 1, ldt));
return this;
}
public CFRowAdder(ColumnFamily cf, Composite prefix, long timestamp) {
this.cf = cf;
this.prefix = prefix;
this.timestamp = timestamp;
this.ldt = (int) (System.currentTimeMillis() / 1000);
// If a CQL3 table, add the row marker
if (cf.metadata().isCQL3Table() && !prefix.isStatic())
cf.addColumn(
new BufferCell(
cf.getComparator().rowMarker(prefix), ByteBufferUtil.EMPTY_BYTE_BUFFER, timestamp));
}
public SliceQueryFilter withUpdatedStart(Composite newStart, CFMetaData cfm) {
Comparator<Composite> cmp = reversed ? cfm.comparator.reverseComparator() : cfm.comparator;
// Check our slices to see if any fall before the new start (in which case they can be removed)
// or
// if they contain the new start (in which case they should start from the page start).
// However, if the
// slices would include static columns, we need to ensure they are also fetched, and so a
// separate
// slice for the static columns may be required.
// Note that if the query is reversed, we can't handle statics by simply adding a separate slice
// here, so
// the reversed case is handled by SliceFromReadCommand instead. See CASSANDRA-8502 for more
// details.
List<ColumnSlice> newSlices = new ArrayList<>();
boolean pastNewStart = false;
for (ColumnSlice slice : slices) {
if (pastNewStart) {
newSlices.add(slice);
continue;
}
if (slice.isBefore(cmp, newStart)) {
if (!reversed && sliceIncludesStatics(slice, cfm))
newSlices.add(new ColumnSlice(Composites.EMPTY, cfm.comparator.staticPrefix().end()));
continue;
} else if (slice.includes(cmp, newStart)) {
if (!reversed && sliceIncludesStatics(slice, cfm) && !newStart.isEmpty())
newSlices.add(new ColumnSlice(Composites.EMPTY, cfm.comparator.staticPrefix().end()));
newSlices.add(new ColumnSlice(newStart, slice.finish));
} else {
newSlices.add(slice);
}
pastNewStart = true;
}
return withUpdatedSlices(newSlices.toArray(new ColumnSlice[newSlices.size()]));
}
public boolean maySelectPrefix(CType type, Composite prefix) {
for (CellName column : columns) {
if (prefix.isPrefixOf(type, column)) return true;
}
return false;
}
