@Override
public void init(final WindowContextCallback listener) {
db = Databases.openDatabase("gwittir-windowcontext", "1.0",
"This gwittir window context database", QUOTA);
db.run(new TransactionTask() {
public void run(Transaction tx) {
tx.execute("SELECT COUNT(*) FROM windowcontext", null,
new ResultsCallback() {
public void onSuccess(Transaction tx, ResultSet rs) {
GWT.log("windowcontext found", null);