/*
* Hibernate, Relational Persistence for Idiomatic Java
*
* License: GNU Lesser General Public License (LGPL), version 2.1 or later.
* See the lgpl.txt file in the root directory or <http://www.gnu.org/licenses/lgpl-2.1.html>.
*/
package org.hibernate;
import java.io.
Closeable;
import java.io.
Serializable;
import java.sql.
Connection;
/**
* A command-oriented API for performing bulk operations against a database.
* <p/>
* A stateless session does not implement a first-level cache nor interact
* with any second-level cache, nor does it implement transactional
* write-behind or automatic dirty checking, nor do operations cascade to
* associated instances. Collections are ignored by a stateless session.
* Operations performed via a stateless session bypass Hibernate's event model
* and interceptors. Stateless sessions are vulnerable to data aliasing
* effects, due to the lack of a first-level cache.
* <p/>
* For certain kinds of transactions, a stateless session may perform slightly
* faster than a stateful session.
*
* @author Gavin King
*/
public interface
StatelessSession extends
SharedSessionContract,
AutoCloseable,
Closeable {
/**
* Close the stateless session and release the JDBC connection.
*/
void
close();
/**
* Insert a row.
*
* @param entity a new transient instance
*
* @return The identifier of the inserted entity
*/
Serializable insert(
Object entity);
/**
* Insert a row.
*
* @param entityName The entityName for the entity to be inserted
* @param entity a new transient instance
*
* @return the identifier of the instance
*/
Serializable insert(
String entityName,
Object entity);
/**
* Update a row.
*
* @param entity a detached entity instance
*/
void
update(
Object entity);
/**
* Update a row.
*
* @param entityName The entityName for the entity to be updated
* @param entity a detached entity instance
*/
void
update(
String entityName,
Object entity);
/**
* Delete a row.
*
* @param entity a detached entity instance
*/
void
delete(
Object entity);
/**
* Delete a row.
*
* @param entityName The entityName for the entity to be deleted
* @param entity a detached entity instance
*/
void
delete(
String entityName,
Object entity);
/**
* Retrieve a row.
*
* @param entityName The name of the entity to retrieve
* @param id The id of the entity to retrieve
*
* @return a detached entity instance
*/
Object get(
String entityName,
Serializable id);
/**
* Retrieve a row.
*
* @param entityClass The class of the entity to retrieve
* @param id The id of the entity to retrieve
*
* @return a detached entity instance
*/
Object get(
Class entityClass,
Serializable id);
/**
* Retrieve a row, obtaining the specified lock mode.
*
* @param entityName The name of the entity to retrieve
* @param id The id of the entity to retrieve
* @param lockMode The lock mode to apply to the entity
*
* @return a detached entity instance
*/
Object get(
String entityName,
Serializable id,
LockMode lockMode);
/**
* Retrieve a row, obtaining the specified lock mode.
*
* @param entityClass The class of the entity to retrieve
* @param id The id of the entity to retrieve
* @param lockMode The lock mode to apply to the entity
*
* @return a detached entity instance
*/
Object get(
Class entityClass,
Serializable id,
LockMode lockMode);
/**
* Refresh the entity instance state from the database.
*
* @param entity The entity to be refreshed.
*/
void
refresh(
Object entity);
/**
* Refresh the entity instance state from the database.
*
* @param entityName The entityName for the entity to be refreshed.
* @param entity The entity to be refreshed.
*/
void
refresh(
String entityName,
Object entity);
/**
* Refresh the entity instance state from the database.
*
* @param entity The entity to be refreshed.
* @param lockMode The LockMode to be applied.
*/
void
refresh(
Object entity,
LockMode lockMode);
/**
* Refresh the entity instance state from the database.
*
* @param entityName The entityName for the entity to be refreshed.
* @param entity The entity to be refreshed.
* @param lockMode The LockMode to be applied.
*/
void
refresh(
String entityName,
Object entity,
LockMode lockMode);
/**
* Returns the current JDBC connection associated with this
* instance.<br>
* <br>
* If the session is using aggressive connection release (as in a
* CMT environment), it is the application's responsibility to
* close the connection returned by this call. Otherwise, the
* application should not close the connection.
*
* @deprecated just missed when deprecating same method from {@link Session}
*
* @return The connection associated with this stateless session
*/
@
Deprecated
Connection connection();
}