How to use

org.keycloak.models.jpa.GroupAdapter

constructor

 protected void onCreate(Bundle savedInstanceState){
  super.onCreate(savedInstanceState);
  init();
  ArrayList<String> data = new ArrayList<String>();
  data.add("Info");
  data.add("Assessment");
  data.add("Billing");
  data.add("Release");
  ArrayAdapter<String> adapter = new ArrayAdapter<String>(this,android.R.layout.simple_list_item_1,data);
  GroupAdapter groupAdapter = new GroupAdapter(this,data);
  setListAdapter(groupAdapter);
  getListView().setDividerHeight(10);

  //setting the margin
  ViewGroup.MarginLayoutParams params = (ViewGroup.MarginLayoutParams) getListView().getLayoutParams();
  params.setMargins(10, 0, 10, 0);
}

@Override
public GroupModel getGroupById(String id, RealmModel realm) {
  GroupEntity groupEntity = em.find(GroupEntity.class, id);
  if (groupEntity == null) return null;
  if (!groupEntity.getRealm().getId().equals(realm.getId())) return null;
  GroupAdapter adapter =  new GroupAdapter(realm, em, groupEntity);
  return adapter;
}

groupAdapter = new GroupAdapter(this, list);

@Override
public GroupModel createGroup(RealmModel realm, String id, String name) {
  if (id == null) id = KeycloakModelUtils.generateId();
  GroupEntity groupEntity = new GroupEntity();
  groupEntity.setId(id);
  groupEntity.setName(name);
  RealmEntity realmEntity = em.getReference(RealmEntity.class, realm.getId());
  groupEntity.setRealm(realmEntity);
  em.persist(groupEntity);
  em.flush();
  realmEntity.getGroups().add(groupEntity);
  GroupAdapter adapter = new GroupAdapter(realm, em, groupEntity);
  return adapter;
}

setGroupModel(new DatabaseModel(getDbHelper(), GroupData.class));
setListView((ListView) findViewById(R.id.lv_group));
setGroupAdapter(new GroupAdapter(GroupsPreferenceActivity.this));
getListView().setAdapter(getGroupAdapter());
setOnDeleteListener(new OnDeleteListener() {