de.alpharogroup.db.service.api

Interface BusinessService<T extends de.alpharogroup.db.entity.BaseEntity<PK>,PK extends Serializable>

Type Parameters:

T - the type of the domain object

PK - the type of the primary key from the domain object

All Superinterfaces:

Serializable

All Known Implementing Classes:

AbstractBusinessService

public interface BusinessService<T extends de.alpharogroup.db.entity.BaseEntity<PK>,PK extends Serializable>
extends Serializable

The Interface BusinessService.

Method Summary

Modifier and Type	Method and Description
Query	createNativeQuery(String sqlString) Factory method for create a new instance of Query from the given sql string and execute a native sql statement for update or delete.
Query	createNativeQuery(String sqlString, Class resultClass) Factory method for create a new instance of Query from the given sql string and execute a native sql statement.
Query	createNativeQuery(String sqlString, String resultSetMapping) Factory method for create a new instance of Query from the given sql string and execute a native sql statement.
void	delete(List<T> objects) Delete all persistent objects in the given list.
void	delete(PK id) Deletes an object of a given Id.
void	delete(T object) Deletes the given object from persistent storage in the database.
void	evict(T object) Remove this instance from the session cache.
boolean	exists(PK id) Checks if an entry exists with the given id.
List<T>	findAll() Returns a list of objects.
T	get(PK id) Retrieve a persisted object with a given id from the database.
EntityManager	getEntityManager() Gets the entity manager.
Query	getQuery(String jpqlString) Gets the Query from the given string.
T	load(PK id) Retrieve a persisted object with a given id from the database.
List<T>	merge(List<T> objects) Merges all new objects in the given list.
T	merge(T object) Merges the given object.
void	refresh(T object) Re-read the state of the given instance from the underlying database.
List<PK>	save(List<T> objects) Save all new objects in the given list.
PK	save(T object) Persist the given object into database.
void	saveOrUpdate(List<T> objects) Save or update all given objects into database.
void	saveOrUpdate(T object) Save or update the given object into database.

Method Detail

createNativeQuery

Query createNativeQuery(String sqlString)

Factory method for create a new instance of Query from the given sql string and execute a native sql statement for update or delete. Note: this method delegates to the underlying entity manager.

Parameters:

sqlString - a native SQL query string

Returns:

the new Query instance

createNativeQuery

Query createNativeQuery(String sqlString,
                        Class resultClass)

Factory method for create a new instance of Query from the given sql string and execute a native sql statement. Note: this method delegates to the underlying entity manager.

Parameters:

sqlString - a native SQL query string

resultClass - the class of the resulting instance(s)

Returns:

the new Query instance

createNativeQuery

Query createNativeQuery(String sqlString,
                        String resultSetMapping)

Factory method for create a new instance of Query from the given sql string and execute a native sql statement. Note: this method delegates to the underlying entity manager.

Parameters:

sqlString - a native SQL query string

resultSetMapping - the name of the result set mapping

Returns:

the new Query instance

delete

void delete(List<T> objects)

Delete all persistent objects in the given list.

Parameters:

objects - the list with the persistent objects to delete

delete

void delete(PK id)

Deletes an object of a given Id. Will load the object internally so consider using delete (T obj) directly

Parameters:

id - the id

delete

void delete(T object)

Deletes the given object from persistent storage in the database.

Parameters:

object - the persistent object

evict

void evict(T object)

Remove this instance from the session cache.

Parameters:

object - the object to evict.

exists

boolean exists(PK id)

Checks if an entry exists with the given id.

Parameters:

id - the id to check

Returns:

true, if an entry exists with the given id, otherwise false.

findAll

List<T> findAll()

Returns a list of objects.

Returns:

list of objects

get

T get(PK id)

Retrieve a persisted object with a given id from the database.

Parameters:

id - the id

Returns:

An object of type T

getEntityManager

EntityManager getEntityManager()

Gets the entity manager.

Returns:

the entity manager

getQuery

Query getQuery(String jpqlString)

Gets the Query from the given string.

Parameters:

jpqlString - the jpql query as string

Returns:

the query

load

T load(PK id)

Retrieve a persisted object with a given id from the database.

Parameters:

id - the id

Returns:

An object of type T

merge

List<T> merge(List<T> objects)

Merges all new objects in the given list.

Parameters:

objects - the list to save

Returns:

the list with the ids of the merged objects

merge

T merge(T object)

Merges the given object. @see Hibernate documentation.

Parameters:

object - the object

Returns:

the object

refresh

void refresh(T object)

Re-read the state of the given instance from the underlying database.

Parameters:

object - the object to refresh.

save

List<PK> save(List<T> objects)

Save all new objects in the given list.

Parameters:

objects - the list to save

Returns:

the list with the ids of the saved objects

save

PK save(T object)

Persist the given object into database.

Parameters:

object - the new instance to save.

Returns:

the id of the saved object

saveOrUpdate

void saveOrUpdate(List<T> objects)

Save or update all given objects into database.

Parameters:

objects - the objects to save or update.

saveOrUpdate

void saveOrUpdate(T object)

Save or update the given object into database.

Parameters:

object - the object to save or update.