Suppose you are developing a large enterprise application using Spring. How would you optimize the bean lifecycle to ensure minimal resource utilization and maximum performance?

  • Implement the SmartInitializingSingleton interface to defer time-consuming initialization tasks until all singletons are created.
  • Use the @Lazy annotation on beans to load them lazily only when they are first accessed.
  • Set the destroy-method attribute in the bean configuration to release resources explicitly during bean destruction.
  • Use the @DependsOn annotation to define bean dependencies explicitly to control their initialization order.
To optimize the bean lifecycle in a large enterprise application, implementing the SmartInitializingSingleton interface allows you to defer time-consuming initialization tasks until all singletons are created, minimizing resource utilization during startup. The other options may help in specific cases but don't address the overall lifecycle optimization.
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