public class MyBatisDataAccessStrategy extends Object implements DataAccessStrategy
DataAccessStrategy
implementation based on MyBatis. Each method gets mapped to a statement. The name of the
statement gets constructed as follows: By default, the namespace is based on the class of the entity plus the suffix
"Mapper". This is then followed by the method name separated by a dot. For methods taking a PropertyPath
as
argument, the relevant entity is that of the root of the path, and the path itself gets as dot separated String
appended to the statement name. Each statement gets an instance of MyBatisContext
, which at least has the
entityType set. For methods taking a PropertyPath
the entityType if the context is set to the class of the
leaf type.Constructor and Description |
---|
MyBatisDataAccessStrategy(org.apache.ibatis.session.SqlSession sqlSession,
IdentifierProcessing identifierProcessing)
Constructs a
DataAccessStrategy based on MyBatis. |
Modifier and Type | Method and 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.
|
static DataAccessStrategy |
createCombinedAccessStrategy(RelationalMappingContext context,
JdbcConverter converter,
NamedParameterJdbcOperations operations,
org.apache.ibatis.session.SqlSession sqlSession,
Dialect dialect)
Create a
DataAccessStrategy that first checks for queries defined by MyBatis and if it doesn't find one
uses a DefaultDataAccessStrategy |
static DataAccessStrategy |
createCombinedAccessStrategy(RelationalMappingContext context,
JdbcConverter converter,
NamedParameterJdbcOperations operations,
org.apache.ibatis.session.SqlSession sqlSession,
NamespaceStrategy namespaceStrategy,
Dialect dialect)
Create a
DataAccessStrategy that first checks for queries defined by MyBatis and if it doesn't find one
uses a DefaultDataAccessStrategy |
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> path)
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.
|
void |
setNamespaceStrategy(NamespaceStrategy namespaceStrategy)
Set a NamespaceStrategy to be used.
|
<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. |
public MyBatisDataAccessStrategy(org.apache.ibatis.session.SqlSession sqlSession, IdentifierProcessing identifierProcessing)
DataAccessStrategy
based on MyBatis.
Use a SqlSessionTemplate
for SqlSession
or a similar implementation tying the session to the proper
transaction. Note that the resulting DataAccessStrategy
only handles MyBatis. It does not include the
functionality of the DefaultDataAccessStrategy
which one normally still wants. Use
createCombinedAccessStrategy(RelationalMappingContext, JdbcConverter, NamedParameterJdbcOperations, SqlSession, NamespaceStrategy, Dialect)
to create such a DataAccessStrategy
.
sqlSession
- Must be non null.identifierProcessing
- the IdentifierProcessing
applied to SqlIdentifier
instances in order to
turn them into String
public static DataAccessStrategy createCombinedAccessStrategy(RelationalMappingContext context, JdbcConverter converter, NamedParameterJdbcOperations operations, org.apache.ibatis.session.SqlSession sqlSession, Dialect dialect)
DataAccessStrategy
that first checks for queries defined by MyBatis and if it doesn't find one
uses a DefaultDataAccessStrategy
public static DataAccessStrategy createCombinedAccessStrategy(RelationalMappingContext context, JdbcConverter converter, NamedParameterJdbcOperations operations, org.apache.ibatis.session.SqlSession sqlSession, NamespaceStrategy namespaceStrategy, Dialect dialect)
DataAccessStrategy
that first checks for queries defined by MyBatis and if it doesn't find one
uses a DefaultDataAccessStrategy
public void setNamespaceStrategy(NamespaceStrategy namespaceStrategy)
namespaceStrategy
- Must be non nullpublic <T> Object insert(T instance, Class<T> domainType, Identifier identifier)
DataAccessStrategy
insert
in interface DataAccessStrategy
T
- the type of the instance.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
.public <S> boolean update(S instance, Class<S> domainType)
DataAccessStrategy
update
in interface DataAccessStrategy
S
- the type of the instance to save.instance
- the instance to save. Must not be null
.domainType
- the type of the instance to save. Must not be null
.public <S> boolean updateWithVersion(S instance, Class<S> domainType, Number previousVersion)
DataAccessStrategy
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.
updateWithVersion
in interface DataAccessStrategy
S
- the type of the instance to save.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.public void delete(Object id, Class<?> domainType)
DataAccessStrategy
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.
delete
in interface DataAccessStrategy
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
.public <T> void deleteWithVersion(Object id, Class<T> domainType, Number previousVersion)
DataAccessStrategy
deleteWithVersion
in interface DataAccessStrategy
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.public void delete(Object rootId, PersistentPropertyPath<RelationalPersistentProperty> propertyPath)
DataAccessStrategy
delete
in interface DataAccessStrategy
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
.public <T> void deleteAll(Class<T> domainType)
DataAccessStrategy
deleteAll
in interface DataAccessStrategy
T
- type of the domain type.domainType
- the domain type for which to delete all entries. Must not be null
.public void deleteAll(PersistentPropertyPath<RelationalPersistentProperty> propertyPath)
DataAccessStrategy
deleteAll
in interface DataAccessStrategy
propertyPath
- Leading from the root object to the entities to be deleted. Must not be null
.public <T> void acquireLockById(Object id, LockMode lockMode, Class<T> domainType)
DataAccessStrategy
acquireLockById
in interface DataAccessStrategy
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
.public <T> void acquireLockAll(LockMode lockMode, Class<T> domainType)
DataAccessStrategy
acquireLockAll
in interface DataAccessStrategy
lockMode
- the lock mode for select. Must not be null
.domainType
- the domain type of the entity. Must not be null
.public <T> T findById(Object id, Class<T> domainType)
DataAccessStrategy
findById
in interface DataAccessStrategy
T
- the type of the entity.id
- the id of the entity to load. Must not be null
.domainType
- the domain type of the entity. Must not be null
.null
.public <T> Iterable<T> findAll(Class<T> domainType)
DataAccessStrategy
findAll
in interface DataAccessStrategy
T
- the type of entities to load.domainType
- the type of entities to load. Must not be null
.null
.public <T> Iterable<T> findAllById(Iterable<?> ids, Class<T> domainType)
DataAccessStrategy
findAllById
in interface DataAccessStrategy
T
- type of entities to load.ids
- the Ids of the entities to load. Must not be null
.domainType
- the type of entities to load. Must not be null
.null
.public Iterable<Object> findAllByPath(Identifier identifier, PersistentPropertyPath<? extends RelationalPersistentProperty> path)
RelationResolver
findAllByPath
in interface DataAccessStrategy
findAllByPath
in interface RelationResolver
identifier
- the combination of Id, map keys and list indexes that identify the parent of the entity to be
loaded. Must not be null.path
- the path from the aggregate root to the entities to be resolved. Must not be null.public <T> boolean existsById(Object id, Class<T> domainType)
DataAccessStrategy
existsById
in interface DataAccessStrategy
T
- the type of the entity.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
.true
if a matching row exists, otherwise false
.public <T> Iterable<T> findAll(Class<T> domainType, Sort sort)
DataAccessStrategy
findAll
in interface DataAccessStrategy
T
- the type of entities to load.domainType
- the type of entities to load. Must not be null
.sort
- the sorting information. Must not be null
.null
.public <T> Iterable<T> findAll(Class<T> domainType, Pageable pageable)
DataAccessStrategy
findAll
in interface DataAccessStrategy
T
- the type of entities to load.domainType
- the type of entities to load. Must not be null
.pageable
- the pagination information. Must not be null
.null
.public long count(Class<?> domainType)
DataAccessStrategy
count
in interface DataAccessStrategy
domainType
- the domain type for which to count the elements. Must not be null
.null
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