Introducing Spring Framework

Chapter 15 ■ Spring Data Within Your Spring Application
}
@Test
@Ignore
public void testMongoDBRemove(){
log.debug("Testing Spring Data MongoDB... [ REMOVE ]");
assertNotNull(mongoDocumentDAO);
Document document = mongoDocumentDAO.removeById(ID);
assertNotNull(document);
Document removedDocument = mongoDocumentDAO.findById(ID);
assertNull(removedDocument);
}
Listing 15-7 shows the complete list of methods. In some cases, you are using the @Ignore of the unit test to test one
by one and see the results on the Mongo shell. Also, you can use the @FixMethodOrder(MethodSorters.NAME_ASCENDING)
that you used in previous chapters to keep the order of the execution of the test methods; this is because the unit test
doesn’t guarantee any order, so maybe you will run into doing a remove before the find method.
Now you can add any other property to your domain model without modifying the rest of the implementation,
making this more reliable than drastic changes. For example, you can add an author property or a likes property
(for how many likes the document has), and only change your Document class, and the rest of the application will be
the same.
Summary
In this chapter, you saw how to use a NoSQL database using the MongoDB and the Spring Data module via the
MongoOperations template. The Spring Framework offers more options not only for NoSQL but for graph databases
like Neo4J. Of course the JPA (Java Persistence API) is another way to use relational databases.
In the next chapter, you will go deeper into messaging and use even more features of the RabbitMQ broker.
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