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Hibernate @OneToOne Unidirectional / Bidirectional

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Manage episode 435157849 series 3594147
Indhold leveret af Trevor Page: Java Guru | Programmer | Teacher. Alt podcastindhold inklusive episoder, grafik og podcastbeskrivelser uploades og leveres direkte af Trevor Page: Java Guru | Programmer | Teacher eller deres podcastplatformspartner. Hvis du mener, at nogen bruger dit ophavsretligt beskyttede værk uden din tilladelse, kan du følge processen beskrevet her https://da.player.fm/legal.
One-to-One Unidirectional Relationship

Since you’ve already learned about the ins and outs of how unidirectional one-to-many and bidirectional one-to-many relationships work, it’s time to learn about the One-to-One relationships.

We will start things off with the unidirectional One-to-One relationship and how it’s set up in Hibernate.

First thing is first, you need to understand how a One-to-One relationship is actually set up in a database. Once you understand that the child table declares the parent’s primary key as the child’s primary key, then we can get moving with the Hibernate stuff!

For this example, we are going to use the One-to-One relationship between an Employee and their Address. TheAddress table will be set up as follows:

For more information, please read the show notes via http://howtoprogramwithjava.com/session55

  continue reading

112 episoder

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iconDel
 
Manage episode 435157849 series 3594147
Indhold leveret af Trevor Page: Java Guru | Programmer | Teacher. Alt podcastindhold inklusive episoder, grafik og podcastbeskrivelser uploades og leveres direkte af Trevor Page: Java Guru | Programmer | Teacher eller deres podcastplatformspartner. Hvis du mener, at nogen bruger dit ophavsretligt beskyttede værk uden din tilladelse, kan du følge processen beskrevet her https://da.player.fm/legal.
One-to-One Unidirectional Relationship

Since you’ve already learned about the ins and outs of how unidirectional one-to-many and bidirectional one-to-many relationships work, it’s time to learn about the One-to-One relationships.

We will start things off with the unidirectional One-to-One relationship and how it’s set up in Hibernate.

First thing is first, you need to understand how a One-to-One relationship is actually set up in a database. Once you understand that the child table declares the parent’s primary key as the child’s primary key, then we can get moving with the Hibernate stuff!

For this example, we are going to use the One-to-One relationship between an Employee and their Address. TheAddress table will be set up as follows:

For more information, please read the show notes via http://howtoprogramwithjava.com/session55

  continue reading

112 episoder

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