public XmlTask updateTask(
T transaction, Handle<XmlTask> handle, XmlTask partialNewTask, Principal user)
throws SQLException {
if (user == null) {
throw new AuthenticationNeededException("There is no user associated with this request");
}
// This needs to be a copy otherwise the cache will interfere with the changes
XmlTask currentTask;
{
final XmlTask t = getTask(transaction, handle);
if (t == null) {
return null;
}
currentTask = new XmlTask(t);
}
for (XmlItem newItem : partialNewTask.getItems()) {
if (newItem.getName() != null && newItem.getName().length() > 0) {
XmlItem currentItem = currentTask.getItem(newItem.getName());
if (currentItem != null) {
currentItem.setValue(newItem.getValue());
}
}
}
// Store the data
getTasks().set(transaction, handle, currentTask);
transaction.commit(); // the actual state isn't stored anyway.
// This may update the server.
currentTask.setState(partialNewTask.getState(), user);
return currentTask;
}
