Java: DTOs and Entities

Self-invocation bypasses proxy, causing transaction failure.

In Spring Boot, self-invocation of a method within the same class bypasses the proxy object that manages transaction boundaries, causing transactional annotations like @Transactional to be ignored. This can lead to unexpected behavior, such as data not being committed. For example, if a method updates an order status within another method of the same service class, the transactional behavior might not apply unless properly structured to go through the proxy.