Your tasks

Complete the database model that will be used for storing articles.

Articles must be stored in table article, with its tags in a table

named tag.

Register ArticleService as a Spring Bean.

Use ArticleRepository as Spring Data JPA repository and inject it into

ArticleService.

Configure the Article class as a Hibernate entity. It should correspond

to the article table in the database.

Implement a findById method $-$ it should return the article with the

given id if it exists in the database, or return an empty article

otherwise.

Implement a findByTitle method $-$ it should return list of articles

with title containing given argument

Implement a create method $-$ it should insert an article into the

database and return its generated id$.$

Implement an update method that should update an existing article.

If there is no article with the given id$,$ you should throw a

RuntimeException with message "Article not found".

Implement a delete method that allows an article to be deleted.

Add validation to the create and update methods $-$ check whether