datamap.opentag(job,"job");
datamap.readDO(job, "job");
Case c = job.getCase();
datamap.opentag(c,"case");
datamap.readDO(c,"case");
for(Client client : c.getClients()){
datamap.opentag(client,"client");
datamap.readDO(client,"client");
for(Income income : client.getIncomes()){