Hibernate @OneToMany Bidirectional Relationship

Hibernate @OneToMany Bidirectional Relationship

Since we've already learned about the unidirectional @ManyToOne relationship, we can now move on to talking about what a bidirectional relationship is like, when using Hibernate. The term "bidirectional" literally means "functioning in two directions", which is the concept that we will apply in our relationships between two Java objects. When we have a bidirectional relationship between objects, it means that we are able to access Object A from Object B, and Object B from Object A. We can apply this logic to our real world coding example that we saw in the last post. The example we will use is the relationship between an Employer and an Employee. Previously, we only defined a unidirectional relationship, so we could only access the Employer from the Employee object and not vice-versa. Now let's take a look at how to transform our existing unidirectional relationship into a bidirectional one.

Jaksot(112)

EP33 - Importing JavaScript into HTML

EP33 - Importing JavaScript into HTML

Show notes for this episode are available via http://coderscampus.com/33 Don't forget to check out our current "deal" for coders campus available via http://coderscampus.com/deal

16 Heinä 201817min

EP32 - Debugging in JavaScript

EP32 - Debugging in JavaScript

Show notes for this episode are available via http://coderscampus.com/32 Don't forget to check out our current "deal" for coders campus available via http://coderscampus.com/deal

9 Heinä 201824min

EP31 - Functions in JavaScript

EP31 - Functions in JavaScript

Show notes for this episode are available via http://coderscampus.com/31 Don't forget to check out our current "deal" for coders campus available via http://coderscampus.com/deal

3 Heinä 201828min

EP30 - Landing the interview, a coder's guide to applying for jobs

EP30 - Landing the interview, a coder's guide to applying for jobs

Show notes are available via http://coderscampus.com/30 If you're interested in grabbing the new "Java Interview Prep Course" you can get a significant discount by joining the "pre-sale" version of th...

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EP29 - While Loops in JavaScript

EP29 - While Loops in JavaScript

Show notes for this episode are available via http://coderscampus.com/29 Don't forget to check out our current "deal" for coders campus available via http://coderscampus.com/deal

1 Syys 201718min

EP28 - For Loops in JavaScript

EP28 - For Loops in JavaScript

Show notes for this episode can be found here: http://coderscampus.com/28 If you're interested in supporting the show, please leave a rating and review via http://coderscampus.com/itunes And if yo...

25 Elo 201721min

EP27 - Jason Kiernan - From Pharmacist to Programming Job Offer in 2 Years

EP27 - Jason Kiernan - From Pharmacist to Programming Job Offer in 2 Years

Show notes are available via http://coderscampus.com/27

11 Elo 201746min

EP26 - IF Statements in JavaScript

EP26 - IF Statements in JavaScript

Show notes for this episode can be found via http://coderscampus.com/26 Also don't forget to check out our lifetime membership to Coders Campus and get access to 130+ hours of video tutorial content...

4 Elo 201719min

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