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java - Cassandra Spring Data不允许我直接通过复合主键查询数据

问题描述

我正在尝试使用复合主键类来使用 Spring Data Cassandra。但是当我尝试查询数据时出现异常：

org.springframework.data.repository.query.QueryCreationException: **Could not create query for public abstract java.util.List com.amdocs.cassandrapoc.repository.ServiceRepository.findByKey(com.amdocs.cassandrapoc.entities.Key)! Reason: Cannot use composite primary key directly. Reference a property of the composite primary key**

这是我的代码：

@PrimaryKeyClass
public class Key implements Serializable {

   @PrimaryKeyColumn(name = "id", ordinal = 0, type = 
      PrimaryKeyType.PARTITIONED)
   @CassandraType(type = DataType.Name.UUID)
      private UUID id;
   @PrimaryKeyColumn(name = "tenant", ordinal = 1, type = 
      PrimaryKeyType.PARTITIONED)
   @CassandraType(type = DataType.Name.TEXT)
      private String tenant;
  (Equals, hashcode, getters, setters omitted)
}

Table(value = "service")
public class Service implements Serializable {
   @PrimaryKey
   private Key key;

   @Column
   private String value;
   (constructors, setters, getters omitted)
}

@Repository
public interface ServiceRepository extends CassandraRepository<Service, Key> {

    List<Service> findByKey(Key key);

}

这就是我创建表的方式（使用嵌入式 Cassandra 和 junit）：

@Autowired
private CassandraAdminOperations adminTemplate;
private final String DATA_TABLE_NAME = "service";

@Before
public void createTable() {
    adminTemplate.createTable(
            true, CqlIdentifier.of(DATA_TABLE_NAME),
            Service.class, new HashMap<String, Object>());
}

我做错了什么？

标签： javacassandraspring-datacomposite-keyspring-data-cassandra

解决方案

我面临同样的问题。在我的情况下，我通过以下实现解决了它。

@Repository
public interface ServiceRepository extends CassandraRepository<Service, Key> {

    List<Service> findByKeyIdAndKeyTenant(UUID id, String tenant);

}

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