concept Transient Lifestyle in category dependency injection

This is an excerpt from Manning's book Dependency Injection. Login to get full access to this book.

When to use the Transient Lifestyle

The Transient Lifestyle is the safest choice of Lifestyles, but also one of the least efficient. It can cause a myriad of instances to be created and garbage collected, even when a single instance would have sufficed.

If you have doubts about the thread-safety of a component, however, the Transient Lifestyle is safe, because each consumer has its own instance of the Dependency. In many cases, you can safely exchange the Transient Lifestyle for a Scoped Lifestyle, where access to the Dependency is also guaranteed to be sequential.