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setter injection vs constructor injection

Deepika Sahu answered on December 24, 2022 Popularity 8/10 Helpfulness 2/10

answer setter injection vs constructor injection

setter injection vs constructor injection

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Setter DI	Constructor DI
Poor readability as it adds a lot of boiler plate codes in the application.	Good readability as it is separately present in the code.
The bean must include getter and setter methods for the properties.	The bean class must declare a matching constructor with arguments. Otherwise, BeanCreationException will be thrown.
Requires addition of @Autowired annotation, above the setter in the code and hence, it increases the coupling between the class and the DI container.	Best in the case of loose coupling with the DI container as it is not even required to add @Autowired annotation in the code.(Implicit constructor injections for single constructor scenarios after spring 4.0)
Circular dependencies or partial dependencies result with Setter DI because object creation happens before the injections.	No scope for circular or partial dependency because dependencies are resolved before object creation itself.
Preferred option when properties are less and mutable objects can be created.	Preferred option when properties on the bean are more and immutable objects (eg: financial processes) are important for application.

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Contributed on Dec 24 2022

Deepika Sahu

0 Answers Avg Quality 2/10

setter injection vs constructor injection

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