{
Tuple<Integer, Integer> t = new Tuple<Integer, Integer>( i, i );
sortedTuple.add( t );
}
IntSerializer ser = IntSerializer.INSTANCE;
InMemoryBTreeBuilder<Integer, Integer> bb = new InMemoryBTreeBuilder<Integer, Integer>( "master", 4, ser, ser );
// contains 1, 2, 3, 4, 5, 6, 7
BTree<Integer, Integer> btree = bb.build( sortedTuple.iterator() );