Spring Data MongoDB - Spring Web Services - Parent - SpringSource

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please define productname in your docbook file!For example, to exclude certain interfaces from instantiation as repository, you could use the followingconfiguration:This example excludes all interfaces ending in SomeRepository from being instantiated.Example 4.6 Using exclude-filter elementJavaConfigThe repository infrastructure can also be triggered using a store-specific @Enable${store}Repositories annotation on a JavaConfig class. For an introduction into Java-basedconfiguration of the Spring container, see the reference documentation. 2A sample configuration to enable Spring Data repositories looks something like this.@Configuration@EnableJpaRepositories("com.acme.repositories")class ApplicationConfiguration {}@Beanpublic EntityManagerFactory entityManagerFactory() {// …}Example 4.7 Sample annotation based repository configurationNoteThe sample uses the JPA-specific annotation, which you would change according to the storemodule you actually use. The same applies to the definition of the EntityManagerFactorybean. Consult the sections covering the store-specific configuration.Standalone usageYou can also use the repository infrastructure outside of a Spring container. You still need someSpring libraries in your classpath, but generally you can set up repositories programmatically aswell. The Spring Data modules that provide repository support ship a persistence technology-specificRepositoryFactory that you can use as follows.RepositoryFactorySupport factory = … // Instantiate factory hereUserRepository repository = factory.getRepository(UserRepository.class);Example 4.8 Standalone usage of repository factory4.3 Custom implementations for Spring Data repositoriesOften it is necessary to provide a custom implementation for a few repository methods. Spring Datarepositories easily allow you to provide custom repository code and integrate it with generic CRUDabstraction and query method functionality.2 JavaConfig in the Spring reference documentation - http://static.springsource.org/spring/docs/3.1.x/spring-framework-reference/html/beans.html#beans-java1.4.0.BUILD-SNAPSHOTSpring Data MongoDB -Reference Documentation 11
please define productname in your docbook file!Adding custom behavior to single repositoriesTo enrich a repository with custom functionality you first define an interface and an implementation forthe custom functionality. Use the repository interface you provided to extend the custom interface.interface UserRepositoryCustom {}public void someCustomMethod(User user);Example 4.9 Interface for custom repository functionalityclass UserRepositoryImpl implements UserRepositoryCustom {}public void someCustomMethod(User user) {// Your custom implementation}NoteThe implementation itself does not depend on Spring Data and can be a regular Spring bean. Soyou can use standard dependency injection behavior to inject references to other beans, takepart in aspects, and so on.Example 4.10 Implementation of custom repository functionalitypublic interface UserRepository extends CrudRepository, UserRepositoryCustom {}// Declare query methods hereLet your standard repository interface extend the custom one. Doing so makes CRUD and customfunctionality available to clients.Example 4.11 Changes to the your basic repository interfaceConfigurationIf you use namespace configuration, the repository infrastructure tries to autodetect customimplementations by scanning for classes below the package we found a repository in. These classesneed to follow the naming convention of appending the namespace element's attribute repositoryimpl-postfixto the found repository interface name. This postfix defaults to Impl.Example 4.12 Configuration exampleThe first configuration example will try to look up a classcom.acme.repository.UserRepositoryImpl to act as custom repository implementation, wherethe second example will try to lookup com.acme.repository.UserRepositoryFooBar.Manual wiringThe preceding approach works well if your custom implementation uses annotation-based configurationand autowiring only, as it will be treated as any other Spring bean. If your custom implementation bean1.4.0.BUILD-SNAPSHOTSpring Data MongoDB -Reference Documentation 12
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