Note down worthwhile contributions.

During Spring Project startup, with each additional
BeanPostProcessor, all beans will go through methods
postProcessBeforeInitialization & postProcessAfterInitialization.

so by default, these BeanPostProcessor are not registered by default. unless we explictly add annotation like Enable*, then respective BeanPostProcessor will be registered.

Let’s see some examples.

On-Going…

Regarding:

• Does Flow need Abstraction
• Throw Exception or Return Status value
• Custom Exception
• Use Transaction
• Retry/Re-Processing

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中国，银行间转账场景。