public void checkAllChanges() {
boolean hasChanges = false;
for (Synchable s : list) {
hasChanges = hasChanges || s.needsSynching();
}
this.setEnabled(hasChanges);
}
public void save() {
// synch field with in-memory document, set field to appear saved
for (Synchable s : list) {
s.synch();
}
// call the method in Main
Main.save();
}