A C++ thread object generally (but not always) represents a thread of execution, which is an OS or platform concept. When thread::join() is called, the calling thread will block until the thread of execution has completed. Basically, this is one mechanism that can be used to know when a thread has finished. When thread::join() returns, … Read more
Create a detached thread when you know you won’t want to wait for it with pthread_join(). The only performance benefit is that when a detached thread terminates, its resources can be released immediately instead of having to wait for the thread to be joined before the resources can be released. It is ‘legal’ not to … Read more
So it seems that there is no way to reattach a stale detached entity in JPA. merge() will push the stale state to the DB, and overwrite any intervening updates. refresh() cannot be called on a detached entity. lock() cannot be called on a detached entity, and even if it could, and it did reattach … Read more