Package org.springframework.data.cassandra.repository.support

Class SimpleCassandraRepository<T,ID>

java.lang.Object

org.springframework.data.cassandra.repository.support.SimpleCassandraRepository<T,ID>

All Implemented Interfaces:

CassandraRepository<T,ID>, CrudRepository<T,ID>, ListCrudRepository<T,ID>, Repository<T,ID>

public class SimpleCassandraRepository<T,ID>
extends Object
implements CassandraRepository<T,ID>

Repository base implementation for Cassandra.

Author:

Alex Shvid, Matthew T. Adams, Mark Paluch, John Blum, Jens Schauder

See Also:

• CassandraRepository

Constructor Summary

Constructors

Constructor	Description
SimpleCassandraRepository(CassandraEntityInformation<T,ID> metadata, CassandraOperations operations)	Create a new SimpleCassandraRepository for the given CassandraEntityInformation and CassandraTemplate.

Method Summary

Modifier and Type	Method	Description
long	count()
void	delete(T entity)
void	deleteAll()
void	deleteAll(Iterable<? extends T> entities)
void	deleteAllById(Iterable<? extends ID> ids)
void	deleteById(ID id)
boolean	existsById(ID id)
List<T>	findAll()
Slice<T>	findAll(Pageable pageable)	Returns a Slice of entities meeting the paging restriction provided in the Pageable object.
List<T>	findAllById(Iterable<ID> ids)
Optional<T>	findById(ID id)
<S extends T> List<S>	insert(Iterable<S> entities)	Inserts the given entities.
<S extends T> S	insert(S entity)	Inserts the given entity.
<S extends T> S	save(S entity)
<S extends T> List<S>	saveAll(Iterable<S> entities)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

SimpleCassandraRepository

public SimpleCassandraRepository(CassandraEntityInformation<T,ID> metadata,
 CassandraOperations operations)

Create a new SimpleCassandraRepository for the given CassandraEntityInformation and CassandraTemplate.

Parameters:

metadata - must not be null.

operations - must not be null.

Method Details

save

public <S extends T> S save(S entity)

Specified by:

save in interface CrudRepository<T,ID>

saveAll

public <S extends T> List<S> saveAll(Iterable<S> entities)

Specified by:

saveAll in interface CrudRepository<T,ID>

Specified by:

saveAll in interface ListCrudRepository<T,ID>

findById

public Optional<T> findById(ID id)

Specified by:

findById in interface CrudRepository<T,ID>

existsById

public boolean existsById(ID id)

Specified by:

existsById in interface CrudRepository<T,ID>

findAll

public List<T> findAll()

Specified by:

findAll in interface CrudRepository<T,ID>

Specified by:

findAll in interface ListCrudRepository<T,ID>

findAllById

public List<T> findAllById(Iterable<ID> ids)

Description copied from interface: CassandraRepository

Note: Cassandra supports single-field IN queries only. When using MapId with multiple components, use CrudRepository.findById(Object).

Specified by:

findAllById in interface CassandraRepository<T,ID>

Specified by:

findAllById in interface CrudRepository<T,ID>

Specified by:

findAllById in interface ListCrudRepository<T,ID>

count

public long count()

Specified by:

count in interface CrudRepository<T,ID>

deleteById

public void deleteById(ID id)

Specified by:

deleteById in interface CrudRepository<T,ID>

delete

public void delete(T entity)

Specified by:

delete in interface CrudRepository<T,ID>

deleteAllById

public void deleteAllById(Iterable<? extends ID> ids)

Specified by:

deleteAllById in interface CrudRepository<T,ID>

deleteAll

public void deleteAll(Iterable<? extends T> entities)

Specified by:

deleteAll in interface CrudRepository<T,ID>

deleteAll

public void deleteAll()

Specified by:

deleteAll in interface CrudRepository<T,ID>

findAll

public Slice<T> findAll(Pageable pageable)

Description copied from interface: CassandraRepository

Returns a Slice of entities meeting the paging restriction provided in the Pageable object.

Specified by:

findAll in interface CassandraRepository<T,ID>

Parameters:

pageable - must not be null.

Returns:

a Slice of entities.

See Also:

• CassandraPageRequest

insert

public <S extends T> S insert(S entity)

Description copied from interface: CassandraRepository

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.

Specified by:

insert in interface CassandraRepository<T,ID>

Parameters:

entity - must not be null.

Returns:

the saved entity

insert

public <S extends T> List<S> insert(Iterable<S> entities)

Description copied from interface: CassandraRepository

Inserts the given entities. Assumes the given entities to have not been persisted yet and thus will optimize the insert over a call to ListCrudRepository.saveAll(Iterable). Prefer using ListCrudRepository.saveAll(Iterable) to avoid the usage of store specific API.

Specified by:

insert in interface CassandraRepository<T,ID>

Parameters:

entities - must not be null.

Returns:

the saved entities