Creating a common repository with Spring Data JPA

How to define common processing for all Repository

Implementation method

Just copy and paste the official document

Common Repository implementation

`MyRepositoryImpl.java`


class MyRepositoryImpl<T, ID extends Serializable> extends SimpleJpaRepository<T, ID> {

Common Repository settings

`JavaConfig.java`


@Configuration
@EnableJpaRepositories(repositoryBaseClass = MyRepositoryImpl.class)
class ApplicationConfiguration { … }

or

`config.xml`


<repositories base-package="com.acme.repository" base-class="….MyRepositoryImpl" />

reference

Official documentation https://docs.spring.io/spring-data/jpa/docs/current/reference/html/#repositories.customize-base-repository

terasoluna documentation http://terasolunaorg.github.io/guideline/5.3.1.RELEASE/ja/ArchitectureInDetail/DataAccessDetail/DataAccessJpa.html#custommethod-all-label

If you want to define two or more base-classes

`config.xml`


<repositories base-package="com.acme.repository1" base-class="….MyRepository1Impl" />
<repositories base-package="com.acme.repository2" base-class="….MyRepository2Impl" />

https://stackoverflow.com/questions/15008809/multiple-jparepositories-in-xml-config-how-to-configure-with-enablejpareposit

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