private MutationBatch getMutationBatch() throws ConnectionException {
ColumnList<C> columnList = rowQuery.execute().getResult();
CqlKeyspaceImpl ksImpl = new CqlKeyspaceImpl(ksContext);
MutationBatch mBatch = ksImpl.prepareMutationBatch();
CqlColumnListMutationImpl<K,C> colListMutation = (CqlColumnListMutationImpl<K, C>)mBatch.withRow(cf, rowKey);
Iterator<Column<C>> iter = columnList.iterator();
boolean first = true;