protected void buttonPressed(int arg0) {
if(arg0 == IDialogConstants.OK_ID) {
if (!cityNameText.getText().trim().equals("") && !stateAcronymCombo.getText().equals("")) {
try {
if(!isCityExistInState()){
system.execute(new AddCity(cityNameText.getText(), stateAcronymCombo.getText()));
close();
}else{
setMessage("Esta cidade j� existe no estado selecionado.",IMessageProvider.ERROR);
}
}catch (TransactionDateException e) {