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Je cherche de l'aide concernant les données de démarrage du ressort en utilisant la base de données Cassandra.
J'ai les dépendances suivantes dans mon fichier pom.xml.Comment mapper le type de données utilisateur dans cassandra en utilisant les données de démarrage du ressort
<dependency>
<groupId>org.springframework.data</groupId>
<artifactId>spring-boot-starter-data-cassandra</artifactId>
</dependency>
<dependency>
<groupId>com.datastax.cassandra</groupId>
<artifactId>cassandra-driver-core</artifactId>
<version>2.1.10.3</version>
</dependency>
<dependency>
<groupId>com.datastax.cassandra</groupId>
<artifactId>cassandra-driver-mapping</artifactId>
<version>2.1.10.3</version>
</dependency>
The table structure looks like:
@Table(value = "TEST_ORDERS")
public class OrderDTO {
@PrimaryKey
@Column(value = "email")
private String emailId;
@Column(value = "order_id")
private int orderId;
@Column(value = "creation_date")
private Timestamp creationDate;
@Column(value = "discount_total")
private double discountTotal;
@Column(name = "shipments")
//This is a UDT type
private Set<ShippingDetails> shipments;
//getters and setters here
}
The ShippingDetails object is a UDT with following declartion and i defined as a frozen collection in the cassandra CQL sripts
@UDT(name = "shipping", keyspace = "mc_checkout")
public class ShippingDetails {
@Field(name = "name")
private FullName name;
@Field(name = "quantity_shipped")
private int quantityShipped;
@Field(name = "shipping_address")
private CheckoutAddress shippingAddress;
//so on
}
There is a repository created for the basic CRUD operations:
@Repository
public interface OrderRepository extends CrudRepository<OrderDTO, String> {
}
When i try to invoke findOne API of this repository in my Service class
i obtenir ci-dessous erreur: entités Cassandra doivent avoir le @Table, @Persistent ou @PrimaryKeyClass Annotation