@Test public void testListOfIdsProperty() { BasicObject object = new BasicObject("xpto"); object.setIdList(Arrays.asList(id(BasicObject.class, 10l), id(BasicObject.class, 20l))); yawp.save(object); BasicObject retrievedObject; retrievedObject = yawp(BasicObject.class).where("idList", "=", id(BasicObject.class, 10l)).first(); assertEquals("xpto", retrievedObject.getStringValue()); retrievedObject = yawp(BasicObject.class).where("idList", "<", id(BasicObject.class, 999l)).first(); assertEquals("xpto", retrievedObject.getStringValue()); }