The browseObjects method get all records from an index. You can use the browse method to get records from an index without pagination, for example, to export your index as a backup. To export all records, use an empty query.
The browseObjects method uses the browseFrom method under the hood, using the BrowseFrom method directly would end up just building its own version of browseObjects that does the same thing, it wouldn’t be a good use of time.
You may use the following method to get all records from your index:
for (AlgoliaIndexingObject object : index.browseObjects(new BrowseIndexQuery())) {
2 // save 'object' somewhere (DB, File..)
3}