sessionWS = (SessionImpl)repository.login(credentials, "ws");
sessionWS1 = (SessionImpl)repository.login(credentials, "ws1");
repository = repositoryService.getRepository("db2");
credentials = new CredentialsImpl("mary", "exo".toCharArray());
sessionMaryWS = (SessionImpl)repository.login(credentials, "ws");
sessionMaryWS1 = (SessionImpl)repository.login(credentials, "ws1");
// add node with only read permission for mary
NodeImpl node = (NodeImpl)sessionWS1.getRootNode().addNode("MARY-ReadOnly");
node.addMixin("exo:privilegeable");