BeanShield

BeanShield is an exceptional Java library that simplifies the usage of complex entity models in user interfaces (UIs) without having to copy or clone data to rollback changes when a user hits the "Cancel" button. As data management UIs require support for units of work that can be reverted, you need to provide a solution to restore the state of a particular entity, which is usually done by cloning or copying entity data. Fortunately, BeanShield eliminates the need for such tiresome tasks.

BeanShield utilizes proxies to shelter your beans from user modifications and modifies the underlying beans only when you explicitly tell it to commit changes. This feature is immensely useful as it streamlines the development process and saves you countless hours of copying and cloning.

BeanShield is an outstanding tool that makes it possible to nest sessions, allowing you to develop complex UIs with nested editors seamlessly. You can think of BeanShield as a transaction nesting tool for your beans in memory, ensuring that all changes are safe and seamless with less effort.

In conclusion, if you are developing a Java-based UI and want a powerful solution for managing entity data, then BeanShield is the way to go. So, if you're looking to boost the efficiency of your UI or streamline your development process, BeanShield should be on your list.