- case 0: return new CQLAndNode(node1, node2, null);
- case 1: return new CQLOrNode(node1, node2, null);
- case 2: return new CQLNotNode(node1, node2, null);
+ case 0: return new CQLAndNode(node1, node2, new ModifierSet("and"));
+ case 1: return new CQLOrNode (node1, node2, new ModifierSet("or"));
+ case 2: return new CQLNotNode(node1, node2, new ModifierSet("not"));