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@ElementCollection @CollectionTable in One to Many mapping Because both of your tables have their own ID columns, Hibernate will want them to both be @Entity types @Embeddables do not have their own ID So, first step is to change Course to be @Entity, with corresponding @TableName, etc
@ElementCollection in Hibernate - ConcretePage. com In Hibernate Annotation, @ElementCollection is the feature which gets the columns values from another table without mapping two tables In my example, I have taken two entity student and college In college entity, we will fetch students without mapping student and college entity
@ElementCollection Example in Hibernate JPA Using Spring Boot We will see how to use @ElementCollection annotation to map a collection of a basic type (String, Integer etc) and embeddable types (User Defined class for example Book java) Consider we have an entity called Student java A student can have a list of book and list of a phone number
JPA Hibernate - @CollectionTable example - LogicBig To customize foreign-key table mapped by @ElementCollection (both for basic types or embedded types), @CollectionTable can be used This is specially useful when we already have a collection table to be mapped
java - Difference between @Size, @Length and @Column (length=value . . . @Column is a JPA annotation and the length attribute is used by the schema generation tool to set the associated SQL column length @Size is a Bean Validation annotation that validates that the associated String has a value whose length is bounded by the minimum and maximum values
Embeddable and ElementCollection nesting - Stack Overflow You'll need to complete a few actions and gain 15 reputation points before being able to upvote Upvoting indicates when questions and answers are useful What's reputation and how do I get it? Instead, you can save this post to reference later
JPA: how to use @ElementCollection annotation? - Stack Overflow I need your help to map the relation in Hibernate of two tables using the @ElementCollection annotation I need to define the PK for both tables using @EmbeddedId annotation, so I have created the two classes: @Column(name="K1") private String iK1; @Column(name="K2") private String iK2;