1. A computer-implemented method comprising: receiving a retrieve request for node data associated with a node of a business object data model; identifying, by the computer, said node is a retrieve transformation node comprising a set of data from multiple other nodes of said business object; determining, by the computer, that the said node relates to one of a currently selected business object and a secondary business object; determining, by the computer, that said node data is not modified during a current transaction; determining, by the computer, that said retrieve request does not include a request to edit or modify said node data; and retrieving, by the computer, said node data associated with said node from one of a persistence buffer and a secondary buffer.