@Override
public void setDocument(int docId) {
bytes = values.get(docId);
in.reset(bytes.bytes, bytes.offset, bytes.length);
if (!in.eof()) {
// first value uses vLong on top of zig-zag encoding, then deltas are encoded using vLong
long previousValue = longs[0] = ByteUtils.zigZagDecode(ByteUtils.readVLong(in));
count = 1;
while (!in.eof()) {
longs = ArrayUtil.grow(longs, count + 1);
previousValue = longs[count++] = previousValue + ByteUtils.readVLong(in);
}
} else {
count = 0;
}
}
