/**
* 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();
}
}
/**
* Make this {@link AbstractModel}'s dirty value depend on the inner {@link AbstractModel}-s, if
* there are any.
*/
private void updateDirtyDelegate() {
List<ValueModel<Boolean>> values = new ArrayList<ValueModel<Boolean>>();
values.add(provider.dirty());
for (AbstractModel<?> model : models) {
values.add(model.dirty());
}
dirty.setDelegate(new ReducingCondition(new OrFunction(), values));
}
/**
* 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();
}
public AbstractModel(Class<T> beanModelClass) {
// TODO: could read the .class from the generic parameter?
// TODO: should get this from an injected provider in the future if ever
// go the GWT-way since it this specific implementation won't work with
// GWT
provider = new ReflectionBeanModelProvider<T>(beanModelClass);
// auto-commit so models can be bound to other models and are
// automatically updated instantly
provider.setAutoCommit(true);
validationTree.add(getFormValidator());
validationTree.addValidationHandler(validationMonitor);
}
public void unbind() {
if (bound) {
bound = false;
unbindModels();
onUnbind();
dirty.setDelegate(provider.dirty());
handlerRegistry.dispose();
binder.dispose();
validationBinder.dispose();
validationTree.dispose();
}
}
public void setValue(T value) {
provider.setValue(value);
}
public T getValue() {
return provider.getValue();
}