public Collection<RowMutation> getMutations(
List<ByteBuffer> variables, boolean local, ConsistencyLevel cl, long now)
throws RequestExecutionException, RequestValidationException {
// keys
List<ByteBuffer> keys = UpdateStatement.buildKeyNames(cfDef, processedKeys, variables);
// columns
ColumnNameBuilder builder = cfDef.getColumnNameBuilder();
CFDefinition.Name firstEmpty =
UpdateStatement.buildColumnNames(cfDef, processedKeys, builder, variables, false);
boolean fullKey = builder.componentCount() == cfDef.columns.size();
boolean isRange = cfDef.isCompact ? !fullKey : (!fullKey || toRemove.isEmpty());
if (!toRemove.isEmpty() && isRange)
throw new InvalidRequestException(
String.format(
"Missing mandatory PRIMARY KEY part %s since %s specified",
firstEmpty, toRemove.iterator().next().left));
// Lists DISCARD operation incurs a read. Do that now.
Set<ByteBuffer> toRead = null;
for (Pair<CFDefinition.Name, Term> p : toRemove) {
CFDefinition.Name name = p.left;
Term value = p.right;
if ((name.type instanceof ListType) && value != null) {
if (toRead == null) toRead = new TreeSet<ByteBuffer>(UTF8Type.instance);
toRead.add(name.name.key);
}
}
Map<ByteBuffer, ColumnGroupMap> rows =
toRead != null
? readRows(keys, builder, toRead, (CompositeType) cfDef.cfm.comparator, local, cl)
: null;
Collection<RowMutation> rowMutations = new ArrayList<RowMutation>(keys.size());
UpdateParameters params = new UpdateParameters(variables, getTimestamp(now), -1);
for (ByteBuffer key : keys)
rowMutations.add(
mutationForKey(
cfDef, key, builder, isRange, params, rows == null ? null : rows.get(key)));
return rowMutations;
}