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/*
* Hibernate, Relational Persistence for Idiomatic Java
*
* Copyright (c) 2008-2011, Red Hat Inc. or third-party contributors as
* indicated by the @author tags or express copyright attribution
* statements applied by the authors. All third-party contributions are
* distributed under license by Red Hat Inc.
*
* This copyrighted material is made available to anyone wishing to use, modify,
* copy, or redistribute it subject to the terms and conditions of the GNU
* Lesser General Public License, as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License
* for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this distribution; if not, write to:
* Free Software Foundation, Inc.
* 51 Franklin Street, Fifth Floor
* Boston, MA 02110-1301 USA
*/
package org.hibernate;
import java.io.Serializable;
import java.sql.Connection;
/**
* A command-oriented API for performing bulk operations against a database.
*
* 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.
*
* For certain kinds of transactions, a stateless session may perform slightly
* faster than a stateful session.
*
* @author Gavin King
*/
public interface StatelessSession extends SharedSessionContract {
/**
* Close the stateless session and release the JDBC connection.
*/
public void close();
/**
* Insert a row.
*
* @param entity a new transient instance
*
* @return The identifier of the inserted entity
*/
public 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
*/
public Serializable insert(String entityName, Object entity);
/**
* Update a row.
*
* @param entity a detached entity instance
*/
public void update(Object entity);
/**
* Update a row.
*
* @param entityName The entityName for the entity to be updated
* @param entity a detached entity instance
*/
public void update(String entityName, Object entity);
/**
* Delete a row.
*
* @param entity a detached entity instance
*/
public void delete(Object entity);
/**
* Delete a row.
*
* @param entityName The entityName for the entity to be deleted
* @param entity a detached entity instance
*/
public 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
*/
public 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
*/
public 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
*/
public 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
*/
public Object get(Class entityClass, Serializable id, LockMode lockMode);
/**
* Refresh the entity instance state from the database.
*
* @param entity The entity to be refreshed.
*/
public 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.
*/
public 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.
*/
public 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.
*/
public void refresh(String entityName, Object entity, LockMode lockMode);
/**
* Returns the current JDBC connection associated with this
* instance.
*
* 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
public Connection connection();
}
