public ProductWrapper<E> generate(ProductWrapper<E> wrapper) {
try {
assertInitialized();
if (iterator == null)
iterator =
source.iterator(); // iterator initialized lazily to reflect context state at invocation
DataContainer<E> tmp = iterator.next(container.get());
if (tmp == null) {
IOUtil.close(iterator);
return null;
}
return wrapper.wrap(tmp.getData());
} catch (Exception e) {
throw new IllegalGeneratorStateException("Generation failed: ", e);
}
}
public Class<E> getGeneratedType() {
return source.getType();
}