org.springframework.data.cassandra.repository

Interface TypedIdCassandraRepository<T,ID extends Serializable>

All Superinterfaces:

CrudRepository<T,ID>, Repository<T,ID>

All Known Subinterfaces:

CassandraRepository<T>

All Known Implementing Classes:

SimpleCassandraRepository

@NoRepositoryBean
public interface TypedIdCassandraRepository<T,ID extends Serializable>
extends CrudRepository<T,ID>

Cassandra-specific extension of the CrudRepository interface that allows the specification of a type for the identity of the @Table (or @Persistable) type.

If a single column comprises the identity of the entity, then you must do one of two things:

• annotate the field or property in your entity with @PrimaryKey and declare your repository interface to be a subinterface of this interface, specifying the entity type and id type, or
• annotate the field or property in your entity with @PrimaryKeyColumn and declare your repository interface to be a subinterface of CassandraRepository.

If multiple columns comprise the identity of the entity, then you must employ one of the following two strategies.

• Strategy: use an explicit primary key class
  • Define a primary key class (annotated with @PrimaryKeyClass) that represents your entity's identity.
  • Define your entity to include a field or property of the type of your primary key class, and annotate that field with @PrimaryKey.
  • Define your repository interface to be a subinterface of this interface, including your entity type and your primary key class type.
• Strategy: embed identity fields or properties directly in your entity and use CassandraRepository
• Define your entity, including a field or property for each column, including those for partition and (optional) cluster columns.
• Annotate each partition & cluster field or property with @PrimaryKeyColumn
• Define your repository interface to be a subinterface of CassandraRepository, which uses a provided id type, MapId (implemented by BasicMapId).
• Whenever you need a MapId, you can use the static factory method BasicMapId.id() (which is convenient if you import statically) and the builder method MapId.with(String, Serializable) to easily construct an id.

Author:

Alex Shvid, Matthew T. Adams

Method Summary

Modifier and Type	Method and Description
<S extends T> S	insert(S entity) Inserts the given entity.

Methods inherited from interface org.springframework.data.repository.CrudRepository

count, delete, delete, delete, deleteAll, exists, findAll, findAll, findOne, save, save

Method Detail

insert

<S extends T> S insert(S entity)

Inserts the given entity. Assumes the instance to be new to be able to apply insertion optimizations. Use the returned instance for further operations as the save operation might have changed the entity instance completely. Prefer using CrudRepository.save(Object) instead to avoid the usage of store-specific API.

Parameters:

entity - must not be null.

Returns:

the saved entity

Since:

1.5.2