relation.setEdge2(edge2);
return relation;
}
+
+ public static Integer toInteger(Object val) {
+ if (val instanceof Double) {
+ return ((Double) val).intValue();
+ } else if (val instanceof String) {
+ return new Integer((String) val);
+ } else if (val instanceof Integer) {
+ return (Integer) val;
+ }
+ throw new RuntimeException("invalid value for integer:" + val.getClass());
+ }
}