groupTable.setWidth(460, UNITS_PIXELS);
groupTable.setHeight(275, UNITS_PIXELS);
addComponent(groupTable);
GroupSelectionQuery query = new GroupSelectionQuery(identityService, userId);
LazyLoadingContainer container = new LazyLoadingContainer(query, 30);
groupTable.setContainerDataSource(container);
groupTable.addContainerProperty("id", String.class, null);
groupTable.addContainerProperty("name", String.class, null);
groupTable.addContainerProperty("type", String.class, null);