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Arjun Shetty
Arjun Shetty

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Getting new instance every time in Java Spring Boot

This is one of the ways to get a new instance of a type everytime we request for it from a singleton scoped instance.

@Lookup Informs spring container to getBean from method decorated with this annotation.

Creating a method in configuration class so that it can be used anywhere configuration is injected.

//ApplicationConfiguration.java @Lookup public UserDTO getUserDTOProtoTypeBean() { return null; } 
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Make sure the UserDTO class is decorated with @Scope("prototype"). Now in your consuming class call this method when you need a new instance.

@Component public class UserMapper { @Autowired ApplicationConfiguration appConfig; public UserDTO ToDto(User userEntity) { var UserDTO = appConfig.getUserDTOProtoTypeBean(); ... } } 
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Code On!

Originally Posted on Bitsmonkey

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