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kalandi charan sahoo

spring injection
1 Answer(s) a year and 10 months ago
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what is difference between constructor and setter injection and which is better?

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July 25, 2011 at 5:45 PM

Difference between Constructor and Setter Injection

With constructor injection, you inject a property or object into the init() method of the object. With setter injection, you create a method called set%ObjectName%() which allows that object to be injected after initialization.

I prefer constructor as it provide a clear definition of the requirements of an object. Setter injection violates that by adding an undocumented requirement that if you want the object to work you also have to inject it with one or more objects immediately after construction. It also confuses the API of the object by adding public methods

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