/**
* Creates a new checkpoint for {@link AbstractModel#revert()} to revert to, if called, and clears
* the dirty state (including that of added inner {@link AbstractModel}-s).
*/
public void checkpoint() {
provider.checkpoint();
for (AbstractModel<?> model : models) {
model.checkpoint();
}
}
/**
* Reverts this {@link AbstractModel} to the value it was originally provided with (via {@link
* AbstractModel#setValue(Object)}) or the value when {@link AbstractModel#checkpoint()} was last
* called.
*/
public void revert() {
provider.revert();
// revert inner models before checkpoint()-ing, otherwise the inner
// models will revert to the checkpoint we just made (and not their
// "original" value, which would have been overwritten by the
// checkpoint).
for (AbstractModel<?> model : models) {
model.revert();
}
checkpoint();
}