Time for action – adding a combobox
Implement the initCombo method of your TimeItUI class as shown in the following code snippet:
private void initCombo() {
for(TestSet testSet : testSets) {
combo.addItem(testSet);
combo.setItemCaption(testSet, testSet.getTitle());
}
combo.addValueChangeListener(new ValueChangeListener() {
@Override
public void valueChange(ValueChangeEvent event) {
TestSet testSet = (TestSet) combo.getValue();
textField.setValue("" + testSet.getDefaultTimes());
button.setDescription(testSet.getDescription());
}
});
combo.setImmediate(true);
}What just happened?
It's not that complicated. If we isolate the for portion of the previous code, we'll get this:
for(TestSet testSet : testSets) {
combo.addItem(testSet);
combo.setItemCaption(testSet, testSet.getTitle());
}For each TestSet instance in our array, we add a TestSet instance and then we say, "Okay, Vaadin for this testSet array I just added, please show what testSet...