Currently I am trying to migrate the spring from 4 to 5. The implementation to load the parent context is missing in spring 5. Now it returns null.
Can anyone please explain why this mechanism is dropped out in spring 5?
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As stated in docs: "After 3+ years of incubation in the Spring Native experimental project with Spring Boot 2, native support is moving to General Availability with Spring Framework 6 and Spring Boot 3!"
But, what are the actual changes/enhancements of the Spring Native notion that took place in Spring Boot 3, in comparison to the Spring Boot 2?
I have checked documentation, but didn't find anything till now
I want to use SpringData (JPA I guess to access Postgres) with my Spring / GWT project. I cannot use SpringBoot because it does not allow me to register a simple HttpServlet (the GWT RemoteServiceServlet). At least, I can't figure that out due to too much magic and poor documentation.
Can anyone point me at a sample Maven project that uses SpringData without SpringBoot?
Does Spring 3.x is still legitimately good for new learners in comparison with 4.x and 5.x versions? And does it still covers the most of spring fundamentals? And on high level what one has missed, if he didn't touched the 4.x and 5.x ?
Does Spring 3.x is still legitimately good for new learners in comparison with 4.x and 5.x versions?
No, because you would be learning old ways of implementing for example JSR.
Here are some difference between spring 3 and spring 4.
*RestController annotation
*JSR-335 Lambda expressions
*JSR-310 Date-Time value types for Spring data binding and formatting.
*JSR-343 JMS 2.0.
*JSR-338 JPA 2.1.
*JSR-349 Bean Validation 1.1.
*JSR-236 Java EE 7 Enterprise Concurrency support.
*JSR-356 Spring’s WebSocket endpoint mode.
*Configuring and implementing Spring style application using Groovy 2. Also they specify that first class support for the Groovy applications.
*Also spring plans to add the HATEOS (Hypermedia as the Engine of Application State) support for REST APIs.
Also Spring 4 is the minimum requirement for running spring boot applications.
And does it still covers the most of spring fundamentals?
Yes, you can get a great introduction with Spring framework and MVC approach, but that is also covered in spring 5 courses as well.
And on high level what one has missed, if he didn't touch the 4.x and 5.x ?
Consider the difference between 3 and 4 on top and to add the difference between spring 4 and 5
*JDK baseline update.
*Core framework revision.
*Core container updates.
*Functional programming with Kotlin.
*Reactive Programming Model.
*Testing improvements.
*Library support.
*Discontinued support.
We have a need to use the new Spring Security 5 OAuth 2 libraries in one of our apps but it is using spring 4. Do we have to upgrade the Spring Core libraries to version 5 to match the Spring Security 5 version? Pretty certain that we have to do this, but its a non trivial effort so trying to understand if it is necessary.
I am currently using Spring 2 + Hibernate 3.
Question 1: What is the good reason to use hibernate framework within Spring's IoC?
Question 2: Why not separate hibernate framework from Spring's IoC framework?
Question 3: For those who experienced using hibernate in Spring 3, is there any pain? (I noted that Spring 3 has much lesser configuration)
The reason why I ask this question is that I think using hibernate within Spring's IoC caused hibernate to be tightly coupled with Spring and caused the configuration file to be much complicated. Please enlighten me.
Thanks to #Wand Maker.
I have found the answer I need in the link provided: http://static.springsource.org/spring/docs/3.0.x/reference/orm.html at the 13.3 Hibernate portion which explains the different ways to implement DAO using spring hibernate.