public override int evalNodeSet(VTDNav vn) { // TODO Auto-generated method stub int i = -1; if (cached) { if (count < ens.size_Renamed_Field) { i = ens.intAt(count); vn.recoverNode(i); count++; return i; } else return -1; } else { cached = true; if (ens == null) { ens = new FastIntBuffer(8);//page size 64 } //record node set while ((i = e.evalNodeSet(vn)) != -1) { ens.append(i); } e.reset(vn); if (ens.size_Renamed_Field > 0) { i = ens.intAt(count);//count should be zero vn.recoverNode(i); count++; return i; } else return -1; } }