Edge e1 = graphModel.factory().newEdge(n1, n2, 1f, true);
graph.addEdge(e1);
Edge e2 = graphModel.factory().newEdge(n2, n4, 3f, true);
graph.addEdge(e2);
Edge e3 = graphModel.factory().newEdge(n2, n1, 1f, true);
graph.addEdge(e3);
AttributeColumn nodeCol1 = attributeModel.getNodeTable().addColumn("col1", "Column 1", AttributeType.STRING, AttributeOrigin.DATA, "default value col1");
AttributeColumn nodeCol2 = attributeModel.getNodeTable().addColumn("col2 listint", AttributeType.LIST_INTEGER);
attributeModel.getNodeTable().addColumn("col3 listchar", AttributeType.LIST_CHARACTER);