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/*
 * 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 .
 */
package org.hibernate;

import java.io.Closeable;
import java.io.Serializable;
import java.sql.Connection;

import org.hibernate.query.NativeQuery;

/**
 * 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, 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.
*
* 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(); @Override NativeQuery createSQLQuery(String queryString); }





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