public Multimap<String, String> openRevisions(int start, int end) {
Preconditions.checkArgument(start >= 0, "Start position must be greater or equal to zero.");
Preconditions.checkArgument(end > start, "End position must be greater than start.");
Preconditions.checkArgument(
end <= this.size(), "End position must be smaller than changes feed size.");
Multimap<String, String> openRevisions = HashMultimap.create();
for (int i = start; i < end; i++) {
ChangesResult.Row row = this.getResults().get(i);
List<ChangesResult.Row.Rev> revisions = row.getChanges();
Set<String> openRevs = new HashSet<String>(revisions.size());
for (ChangesResult.Row.Rev rev : revisions) {
openRevs.add(rev.getRev());
}
openRevisions.putAll(row.getId(), openRevs);
}
return openRevisions;
}
