java.lang.Object

org.springframework.data.jdbc.core.convert.DefaultDataAccessStrategy

All Implemented Interfaces:: DataAccessStrategy, RelationResolver

public class DefaultDataAccessStrategy extends Object implements DataAccessStrategy

The default DataAccessStrategy is to generate SQL statements based on meta data from the entity.

Since:: 1.1
Author:: Jens Schauder, Mark Paluch, Thomas Lang, Bastian Wilhelm, Christoph Strobl, Tom Hombergs, Tyler Van Gorder, Milan Milanov, Myeonghyeon Lee, Yunyoung LEE, Radim Tlusty

Constructor Summary

Constructors

Constructor

Description

DefaultDataAccessStrategy(SqlGeneratorSource sqlGeneratorSource, RelationalMappingContext context, JdbcConverter converter, NamedParameterJdbcOperations operations)

Creates a DefaultDataAccessStrategy
Method Summary

Modifier and Type

Method

Description

<T> void

acquireLockAll(LockMode lockMode, Class<T> domainType)

Acquire a lock on all aggregates of the given domain type.

<T> void

acquireLockById(Object id, LockMode lockMode, Class<T> domainType)

Acquire a lock on the aggregate specified by id.

long

count(Class<?> domainType)

Counts the rows in the table representing the given domain type.

void

delete(Object id, Class<?> domainType)

Deletes a single row identified by the id, from the table identified by the domainType.

void

delete(Object rootId, PersistentPropertyPath<RelationalPersistentProperty> propertyPath)

Deletes all entities reachable via propertyPath from the instance identified by rootId.

<T> void

deleteAll(Class<T> domainType)

Deletes all entities of the given domain type.

void

deleteAll(PersistentPropertyPath<RelationalPersistentProperty> propertyPath)

Deletes all entities reachable via propertyPath from any instance.

<T> void

deleteWithVersion(Object id, Class<T> domainType, Number previousVersion)

Deletes a single entity from the database and enforce optimistic record locking using the version property.

<T> boolean

existsById(Object id, Class<T> domainType)

returns if a row with the given id exists for the given type.

<T> Iterable<T>

findAll(Class<T> domainType)

Loads all entities of the given type.

<T> Iterable<T>

findAll(Class<T> domainType, Pageable pageable)

Loads all entities of the given type, paged and sorted.

<T> Iterable<T>

findAll(Class<T> domainType, Sort sort)

Loads all entities of the given type, sorted.

<T> Iterable<T>

findAllById(Iterable<?> ids, Class<T> domainType)

Loads all entities that match one of the ids passed as an argument.

Iterable<Object>

findAllByPath(Identifier identifier, PersistentPropertyPath<? extends RelationalPersistentProperty> propertyPath)

Finds all entities reachable via path.

<T> T

findById(Object id, Class<T> domainType)

Loads a single entity identified by type and id.

<T> Object

insert(T instance, Class<T> domainType, Identifier identifier)

Inserts a the data of a single entity.

<S> boolean

update(S instance, Class<S> domainType)

Updates the data of a single entity in the database.

<S> boolean

updateWithVersion(S instance, Class<S> domainType, Number previousVersion)

Updates the data of a single entity in the database and enforce optimistic record locking using the previousVersion property.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details
- DefaultDataAccessStrategy
  
  public DefaultDataAccessStrategy(SqlGeneratorSource sqlGeneratorSource, RelationalMappingContext context, JdbcConverter converter, NamedParameterJdbcOperations operations)
  
  Creates a DefaultDataAccessStrategy
  
  Parameters:
  
  sqlGeneratorSource - must not be null.
  
  context - must not be null.
  
  converter - must not be null.
  
  operations - must not be null.
  
  Since:
  
  1.1
Method Details
- insert
  
  public <T> Object insert(T instance, Class<T> domainType, Identifier identifier)
  
  Description copied from interface: DataAccessStrategy
  
  Inserts a the data of a single entity. Referenced entities don't get handled.
  
  Specified by:
  
  insert in interface DataAccessStrategy
  
  Type Parameters:
  
  T - the type of the instance.
  
  Parameters:
  
  instance - the instance to be stored. Must not be null.
  
  domainType - the type of the instance. Must not be null.
  
  identifier - information about data that needs to be considered for the insert but which is not part of the entity. Namely references back to a parent entity and key/index columns for entities that are stored in a Map or List.
  
  Returns:
  
  the id generated by the database if any.
- update
  
  public <S> boolean update(S instance, Class<S> domainType)
  
  Description copied from interface: DataAccessStrategy
  
  Updates the data of a single entity in the database. Referenced entities don't get handled.
  
  Specified by:
  
  update in interface DataAccessStrategy
  
  Type Parameters:
  
  S - the type of the instance to save.
  
  Parameters:
  
  instance - the instance to save. Must not be null.
  
  domainType - the type of the instance to save. Must not be null.
  
  Returns:
  
  whether the update actually updated a row.
- updateWithVersion
  
  public <S> boolean updateWithVersion(S instance, Class<S> domainType, Number previousVersion)
  
  Description copied from interface: DataAccessStrategy
  
  Updates the data of a single entity in the database and enforce optimistic record locking using the previousVersion property. Referenced entities don't get handled.
  The statement will be of the form : UPDATE … SET … WHERE ID = :id and VERSION_COLUMN = :previousVersion and throw an optimistic record locking exception if no rows have been updated.
  
  Specified by:
  
  updateWithVersion in interface DataAccessStrategy
  
  Type Parameters:
  
  S - the type of the instance to save.
  
  Parameters:
  
  instance - the instance to save. Must not be null.
  
  domainType - the type of the instance to save. Must not be null.
  
  previousVersion - The previous version assigned to the instance being saved.
  
  Returns:
  
  whether the update actually updated a row.
- delete
  
  public void delete(Object id, Class<?> domainType)
  
  Description copied from interface: DataAccessStrategy
  
  Deletes a single row identified by the id, from the table identified by the domainType. Does not handle cascading deletes.
  The statement will be of the form : DELETE FROM … WHERE ID = :id and VERSION_COLUMN = :version and throw an optimistic record locking exception if no rows have been updated.
  
  Specified by:
  
  delete in interface DataAccessStrategy
  
  Parameters:
  
  id - the id of the row to be deleted. Must not be null.
  
  domainType - the type of entity to be deleted. Implicitly determines the table to operate on. Must not be null.
- deleteWithVersion
  
  public <T> void deleteWithVersion(Object id, Class<T> domainType, Number previousVersion)
  
  Description copied from interface: DataAccessStrategy
  
  Deletes a single entity from the database and enforce optimistic record locking using the version property. Does not handle cascading deletes.
  
  Specified by:
  
  deleteWithVersion in interface DataAccessStrategy
  
  Parameters:
  
  id - the id of the row to be deleted. Must not be null.
  
  domainType - the type of entity to be deleted. Implicitly determines the table to operate on. Must not be null.
  
  previousVersion - The previous version assigned to the instance being saved.
- delete
  
  public void delete(Object rootId, PersistentPropertyPath<RelationalPersistentProperty> propertyPath)
  
  Description copied from interface: DataAccessStrategy
  
  Deletes all entities reachable via propertyPath from the instance identified by rootId.
  
  Specified by:
  
  delete in interface DataAccessStrategy
  
  Parameters:
  
  rootId - Id of the root object on which the propertyPath is based. Must not be null.
  
  propertyPath - Leading from the root object to the entities to be deleted. Must not be null.
- deleteAll
  
  public <T> void deleteAll(Class<T> domainType)
  
  Description copied from interface: DataAccessStrategy
  
  Deletes all entities of the given domain type.
  
  Specified by:
  
  deleteAll in interface DataAccessStrategy
  
  Type Parameters:
  
  T - type of the domain type.
  
  Parameters:
  
  domainType - the domain type for which to delete all entries. Must not be null.
- deleteAll
  
  public void deleteAll(PersistentPropertyPath<RelationalPersistentProperty> propertyPath)
  
  Description copied from interface: DataAccessStrategy
  
  Deletes all entities reachable via propertyPath from any instance.
  
  Specified by:
  
  deleteAll in interface DataAccessStrategy
  
  Parameters:
  
  propertyPath - Leading from the root object to the entities to be deleted. Must not be null.
- acquireLockById
  
  public <T> void acquireLockById(Object id, LockMode lockMode, Class<T> domainType)
  
  Description copied from interface: DataAccessStrategy
  
  Acquire a lock on the aggregate specified by id.
  
  Specified by:
  
  acquireLockById in interface DataAccessStrategy
  
  Parameters:
  
  id - the id of the entity to load. Must not be null.
  
  lockMode - the lock mode for select. Must not be null.
  
  domainType - the domain type of the entity. Must not be null.
- acquireLockAll
  
  public <T> void acquireLockAll(LockMode lockMode, Class<T> domainType)
  
  Description copied from interface: DataAccessStrategy
  
  Acquire a lock on all aggregates of the given domain type.
  
  Specified by:
  
  acquireLockAll in interface DataAccessStrategy
  
  Parameters:
  
  lockMode - the lock mode for select. Must not be null.
  
  domainType - the domain type of the entity. Must not be null.
- count
  
  public long count(Class<?> domainType)
  
  Description copied from interface: DataAccessStrategy
  
  Counts the rows in the table representing the given domain type.
  
  Specified by:
  
  count in interface DataAccessStrategy
  
  Parameters:
  
  domainType - the domain type for which to count the elements. Must not be null.
  
  Returns:
  
  the count. Guaranteed to be not null.
- findById
  
  public <T> T findById(Object id, Class<T> domainType)
  
  Description copied from interface: DataAccessStrategy
  
  Loads a single entity identified by type and id.
  
  Specified by:
  
  findById in interface DataAccessStrategy
  
  Type Parameters:
  
  T - the type of the entity.
  
  Parameters:
  
  id - the id of the entity to load. Must not be null.
  
  domainType - the domain type of the entity. Must not be null.
  
  Returns:
  
  Might return null.
- findAll
  
  public <T> Iterable<T> findAll(Class<T> domainType)
  
  Description copied from interface: DataAccessStrategy
  
  Loads all entities of the given type.
  
  Specified by:
  
  findAll in interface DataAccessStrategy
  
  Type Parameters:
  
  T - the type of entities to load.
  
  Parameters:
  
  domainType - the type of entities to load. Must not be null.
  
  Returns:
  
  Guaranteed to be not null.
- findAllById
  
  public <T> Iterable<T> findAllById(Iterable<?> ids, Class<T> domainType)
  
  Description copied from interface: DataAccessStrategy
  
  Loads all entities that match one of the ids passed as an argument. It is not guaranteed that the number of ids passed in matches the number of entities returned.
  
  Specified by:
  
  findAllById in interface DataAccessStrategy
  
  Type Parameters:
  
  T - type of entities to load.
  
  Parameters:
  
  ids - the Ids of the entities to load. Must not be null.
  
  domainType - the type of entities to load. Must not be null.
  
  Returns:
  
  the loaded entities. Guaranteed to be not null.
- findAllByPath
  
  public Iterable<Object> findAllByPath(Identifier identifier, PersistentPropertyPath<? extends RelationalPersistentProperty> propertyPath)
  
  Description copied from interface: RelationResolver
  
  Finds all entities reachable via path.
  
  Specified by:
  
  findAllByPath in interface DataAccessStrategy
  
  Specified by:
  
  findAllByPath in interface RelationResolver
  
  Parameters:
  
  identifier - the combination of Id, map keys and list indexes that identify the parent of the entity to be loaded. Must not be null.
  
  propertyPath - the path from the aggregate root to the entities to be resolved. Must not be null.
  
  Returns:
  
  guaranteed to be not null.
- existsById
  
  public <T> boolean existsById(Object id, Class<T> domainType)
  
  Description copied from interface: DataAccessStrategy
  
  returns if a row with the given id exists for the given type.
  
  Specified by:
  
  existsById in interface DataAccessStrategy
  
  Type Parameters:
  
  T - the type of the entity.
  
  Parameters:
  
  id - the id of the entity for which to check. Must not be null.
  
  domainType - the type of the entity to check for. Must not be null.
  
  Returns:
  
  true if a matching row exists, otherwise false.
- findAll
  
  public <T> Iterable<T> findAll(Class<T> domainType, Sort sort)
  
  Description copied from interface: DataAccessStrategy
  
  Loads all entities of the given type, sorted.
  
  Specified by:
  
  findAll in interface DataAccessStrategy
  
  Type Parameters:
  
  T - the type of entities to load.
  
  Parameters:
  
  domainType - the type of entities to load. Must not be null.
  
  sort - the sorting information. Must not be null.
  
  Returns:
  
  Guaranteed to be not null.
- findAll
  
  public <T> Iterable<T> findAll(Class<T> domainType, Pageable pageable)
  
  Description copied from interface: DataAccessStrategy
  
  Loads all entities of the given type, paged and sorted.
  
  Specified by:
  
  findAll in interface DataAccessStrategy
  
  Type Parameters:
  
  T - the type of entities to load.
  
  Parameters:
  
  domainType - the type of entities to load. Must not be null.
  
  pageable - the pagination information. Must not be null.
  
  Returns:
  
  Guaranteed to be not null.

Class DefaultDataAccessStrategy

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Constructor Details

DefaultDataAccessStrategy

Method Details

insert

update

updateWithVersion

delete

deleteWithVersion

delete

deleteAll

deleteAll

acquireLockById

acquireLockAll

count

findById

findAll

findAllById

findAllByPath

existsById

findAll

findAll