blah.java

    @Test
    public void blah() throws Exception {
        Map<String, String> map = new HashMap<String, String>();
        map.put("hello", "world");
        // create a doc
        DocumentRevision revision = new DocumentRevision("id1");
        revision.setBody(DocumentBodyFactory.create(map));
        datastore.createDocumentFromRevision(revision);
        // fetch up to 100 changes since the beginning
        Changes changes = datastore.changes(0, 100);
        // prints id1
        for (DocumentRevision rev : changes.getResults()) {
            System.out.println(rev);
        }
        // store the current sequence since the last document create/update
        long currentSequence = datastore.getLastSequence();
        // create 2 docs
        DocumentRevision revision2 = new DocumentRevision("id2");
        DocumentRevision revision3 = new DocumentRevision("id3");
        revision2.setBody(DocumentBodyFactory.create(map));
        revision3.setBody(DocumentBodyFactory.create(map));
        datastore.createDocumentFromRevision(revision2);
        datastore.createDocumentFromRevision(revision3);
        // fetch up to 100 change since last create/update
        changes = datastore.changes(currentSequence, 100);
        /// prints id2, id3
        for (DocumentRevision rev : changes.getResults()) {
            System.out.println(rev);
        }
    }