Spring Boot - Inversion of Control and Dependency Injection
What is a likely consequence of manually creating a Spring-managed bean instance instead of letting the IoC container manage it?
What is a likely consequence of manually creating a Spring-managed bean instance instead of letting the IoC container manage it?
medium📝 component behavior Q5 of 15
Step-by-Step Solution
Solution:
Step 1: Understand IoC container role
Spring manages lifecycle and dependency injection of beans it creates.Step 2: Effect of manual instantiation
Manually created instances are outside Spring's control and won't have dependencies injected.Final Answer:
The manually created instance will not have its dependencies injected by Spring -> Option BQuick Check:
Only Spring-created beans get dependency injection [OK]
Quick Trick: Manual instantiation bypasses Spring's injection [OK]
Common Mistakes:
- Believing Spring manages all instances regardless of creation method
- Expecting compile-time errors for manual instantiation
- Assuming manual instantiation improves performance
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