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jueves, 25 de septiembre de 2014

JTREE JQuery UI

Tree




 What is jsTree?





jQuery Validation Plugin Demo



Widget Factory






HOW-TO: CONFIGURAR UN JSTREE SENCILLO



example jstree



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Spring Data JPA

Querydsl 





BooleanBuilder



CollectionExpression




JPA Query Expressions (JPQL / Criteria)





Spring Data JPA + Querydsl Integration







Advanced Spring Data JPA - Specifications and Querydsl








Interface JpaRepository<T,ID extends Serializable>












Hibernate Annotations





Spring Data JPA - Reference Documentation















Fine-tuning Spring Data repositories





Customizing Spring Data JPA Repository





SpEL support in Spring Data JPA @Query definitions



 JPA Query







Named Native Query





Anotaciones en JPA para sobrevivir a una primera persistenica


http://softwareyotrasdesvirtudes.com/2012/09/20/anotaciones-en-jpa-para-sobrevivir-a-una-primera-persistenica/


http://docs.oracle.com/javaee/5/api/javax/persistence/JoinColumn.html



JPA Annotations for Mapping (ORM)



 UniqueConstraint




Embeddable

Annotation ManyToOne







7.  Additional JPA Mappings




FetchMode




JPA vs Hibernate



Chapter 2. Why JPA?

http://docs.oracle.com/cd/E24329_01/apirefs.1211/e24396/ejb3_overview_why.html


JPA Implementation Patterns: Saving (Detached) Entities


 http://blog.xebia.com/2009/03/23/jpa-implementation-patterns-saving-detached-entities/

Chapter 6.  Java Persistence Entity Operations


Describe how to manage entities, including using the EntityManager API and the cascade option.






 javax.validation.constraints





hibernate validator




5 minutes with – Jpa transaction




ET TRANSACTION ISOLATION LEVEL (Transact-SQL)



Hibernate Transaction Annotation Configuration

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martes, 23 de septiembre de 2014

SQL Unique Constraint



http://www.hsqldb.org/doc/guide/ch09.html


http://www.w3schools.com/sql/sql_unique.asp


http://www.aulaclic.es/sql/t_8_3.htm
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viernes, 19 de septiembre de 2014

43 cursos universitarios gratuitos para formarte en tecnología

Empieza el curso y somos muchos los que vamos a volver a estudiar, al menos durante los próximos meses. Aunque realmente la informática es una disciplina en la que debemos reciclarnos continuamente y en la que nunca podemos dejar de aprender, al menos si queremos ser buenos profesionales del ramo.
Y muchos somos también a los que nos gusta complementar nuestra formación "habitual" con otros cursos de otras disciplinas relacionadas, o no tanto, con la informática. Por ello queremos dar la bienvenida al nuevo curso académico con nada menos que cuarenta y tres cursos universitarios gratuitos sobre informática que podéis tomar desde vuestra casa y sin necesidad de abrir la cartera.

Cursos de programación

Bug en el código (de verdad)

Cursos de bases de datos

  • "Desarrollo de Sistemas de Información" es un curso que se enfoca en el diseño de sistemas que va a involucrar algún tipo de almacenamiento de información, sin entrar demasiado en particularidades. (Universidad de Cantabria, español)
  • "Bases de Datos" también permite acercarse al diseño, mantenimiento y operación de un sistema de bases de datos. (Universidad de Cantabria, español)
  • "Diseño de Bases de Datos" es otro curso introductorio a la disciplina, pero desde un nivel bastante alto (es decir, con una teoría que no se acerca a ningún sistema gestor de bases de datos concreto). (Universidad Carlos III de Madrid, español)
  • "Ficheros y bases de datos": organización interna de bases de datos, índices, organización interna de ficheros. (Universidad Carlos III, español).
  • "Minería de cuantiosos conjuntos de datos": análisis de enormes cantidades de información, poniendo como ejemplo el algoritmo PageRank. (Universidad de Stanford, inglés)
  • "Recuperación y acceso a la información": recuperación de información de la red, crawlers, procesamiento de lenguaje natural y técnicas de extracción de información. (Universidad Carlos III, español).

Cursos de seguridad informática

  • "Criptografía I" y "Criptografía II" permiten obtener conocimientos tanto desde el punto de vista teórico como aplicables al mundo real sobre criptografía, una herramienta indispensable para proteger nuestra información de ojos ajenos. (Universidad de Stanford, inglés)
  • "Seguridad utilizable" da a la seguridad informática el punto de vista que muchas veces es el más necesario: el del usuario, que casi siempre es el eslabón más débil de la cadena. (Universidad de Maryland, inglés)
  • "Security Engineering" trata de la planificación de la seguridad de un sistema, controles de acceso y demás conceptos relacionados. (Universidad Carlos III de Madrid, inglés)
  • "Seguridad en sistemas informáticos" es otra asignatura dedicada a la seguridad informática, como su nombre indica. También añade conceptos de seguridad perimétrica (es decir, la que está alrededor del nodo a securizar). (Universidad de Valencia, español)

Cursos de administración de sistemas

Terminal
  • "Administración Básica de un Sistema UNIX-Linux": curso que muestra los conceptos básicos a la hora de administrar una máquina que utiliza un sistema operativo de tipo Linux. Ideal para perderle el miedo a la terminal. (Universidad de Cantabria, español)
  • "Administración de Sistemas Operativos" también incluye conceptos de configuración de redes de pequeñas y medianas empresas, así como los mismos conceptos básicos. (Universidad Politécnica de Valencia, español)

Cursos de informática aplicada

  • "Sistemas de Información Geográfica" explica conceptos de sistemas de información geográfica, un tipo de sistema muy particular pero de los que hay bastante implantación en prácticamente todo el mundo. (Universidad Politécnica de Valencia, español)
  • "S.I.G." va en la misma línea que el curso anterior, aunque con otro enfoque ligeramente distinto. (Universidad Politécnica de Valencia, español)
  • Desde el GPS y Google Maps a la computación espacial" explica conceptos de computación espacial, o mejor dicho, de sistemas que procesan información espacial (y no únicamente geográfica) desde distintos puntos de vista. (Universidad de Minnesota, inglés)
  • "Foundations of Computer Graphics": generación de gráficos en tiempo real (y no real), render de gráficos bidimensionales y tridimensionales utilizando OpenGL. (Universidad de Berkeley, inglés)
  • "Visión por Computador" combina inteligencia artificial con procesamiento de imágenes, con énfasis en un enfoque práctico para construir aplicaciones. (Universidad de Zaragoza, español)

Cursos de inteligencia artificial

  • "Intro to Artificial Intelligence" es un curso que permite obtener los principios básicos sobre los que se sustenta la Inteligencia Artificial, que es una disciplina casi tan amplia como profunda. (Universidad de Stanford, inglés)
  • "Common Sense Reasoning" toca una de las muchas partes de la Inteligencia Artificial: la de dotar a las máquinas de algo que parezca sentido común a la hora de resolver problemas. (Universidad Politécnica de Madrid, inglés)
  • "Redes Neuronales y Reconocimiento de Patrones" trata otra de las áreas de la IA: la del reconocimiento de patrones y el autoaprendizaje. Este curso parece requerir una base matemática bastante importante. (Universidad Politécnica de Madrid, español)
  • "Learning From Data" también trata sobre aprendizaje automático a partir de datos, y también requiere conocimientos sobre cálculo y estadística, así como de programación. (Caltech, inglés)

Cursos relacionados con la informática

Cables





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jueves, 18 de septiembre de 2014

EntityManager get Hibernate Session Factory

org.hibernate.Session hibernateSession = (Session)entityManager.getDelegate();

FUENTE: http://www.theserverside.com/tip/How-to-get-the-Hibernate-Session-from-the-JPA-20-EntityManager
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@Transactional JPA Propagation - Isolation

PROPAGATION_REQUIRED = 0; If DataSourceTransactionObject T1 is already started for Method M1.If for another Method M2 Transaction object is required ,no new Transaction object is created .Same object T1 is used for M2
PROPAGATION_MANDATORY = 2; method must run within a transaction. If no existing transaction is in progress, an exception will be thrown
PROPAGATION_REQUIRES_NEW = 3; If DataSourceTransactionObject T1 is already started for Method M1 and it is in progress(executing method M1) .If another method M2 start executing then T1 is suspended for the duration of method M2 with new DataSourceTransactionObject T2 for M2.M2 run within its own transaction context
PROPAGATION_NOT_SUPPORTED = 4; If DataSourceTransactionObject T1 is already started for Method M1.If another method M2 is run concurrently .Then M2 should not run within transaction context. T1 is suspended till M2 is finished.
PROPAGATION_NEVER = 5; None of the methods run in transaction context.
An isolation level: It is about how much a transaction may be impacted by the activities of other concurrent transactions.It a supports consistency leaving the data across many tables in a consistent state. It involves locking rows and/or tables in a database.
The problem with multiple transaction
Scenario 1.If T1 transaction reads data from table A1 that was written by another concurrent transaction T2.If on the way T2 is rollback,the data obtained by T1 is invalid one.E.g a=2 is original data .If T1 read a=1 that was written by T2.If T2 rollback then a=1 will be rollback to a=2 in DB.But,Now ,T1 has a=1 but in DB table it is changed to a=2.
Scenario2.If T1 transaction reads data from table A1.If another concurrent transaction(T2) update data on table A1.Then the data that T1 has read is different from table A1.Because T2 has updated the data on table A1.E.g if T1 read a=1 and T2 updated a=2.Then a!=b.
Scenario 3.If T1 transaction reads data from table A1 with certain number of rows. If another concurrent transaction(T2) inserts more rows on table A1.The number of rows read by T1 is different from rows on table A1
Scenario 1 is called Dirty reads
Scenario 2 is called Nonrepeatable reads
Scenario 3 is called Phantom reads .
So,isolation level is the extend to which Scenario 1 ,Scenario 2 ,Scenario 3 can be prevented. You can obtained complete isolation level by implementing locking.That is preventing concurrent reads and writes to the same data from occurring.But it affects performance .The level of isolation depends upon application to application how much isolation is required.
ISOLATION_READ_UNCOMMITTED :Allows to read changes that haven’t yet been committed.It suffer from Scenario 1 ,Scenario 2 ,Scenario 3
ISOLATION_READ_COMMITTED:Allows reads from concurrent transactions that have been com- mitted.It may suffer from Scenario 2 ,Scenario 3 . Because other transactions may be updating the data.
ISOLATION_REPEATABLE_READ:Multiple reads of the same field will yield the same results untill it is changed by itself.It may suffer from Scenario 3.Because other transactions may be inserting the data
ISOLATION_SERIALIZABLE: Scenario 1,Scenario 2,Scenario 3 never happens.It is complete isolation.It involves full locking.It affets performace because of locking.


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Shared Entity Manager Transactions



FUENTE: http://tomee.apache.org/examples-trunk/transaction-rollback/README.html
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Hibernate Properties 

<?xml version="1.0" encoding="UTF-8"?>
<persistence xmlns="http://java.sun.com/xml/ns/persistence"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://java.sun.com/xml/ns/persistence http://java.sun.com/xml/ns/persistence/persistence_2_0.xsd"
    version="2.0">
  <persistence-unit name="JPATest" transaction-type="RESOURCE_LOCAL">
  <provider>org.hibernate.jpa.HibernatePersistenceProvider</provider>  

  <class>com.test.TestEntity</class>  
  <shared-cache-mode>ENABLE_SELECTIVE</shared-cache-mode> 
  <properties> 
      <property name="hibernate.hbm2ddl.auto" value="update"/>
      <property name="hibernate.show_sql" value="true"/>
      <property name="hibernate.format_sql" value="true"/>
      <property name="hibernate.use_sql_comments" value="true"/>
      <property name="hibernate.cache.use_query_cache" value="true"/>
      <property name="hibernate.archive.autodetection" value="class, hbm"/>     
       <property name="hibernate.dialect" value="org.hibernate.dialect.MySQL5InnoDBDialect"/>
      <property name="hibernate.connection.driver_class" value="com.mysql.jdbc.Driver"/>
      <property name="hibernate.connection.username" value="xxx"/>
      <property name="hibernate.connection.password" value="xxx"/>
      <property name="hibernate.connection.url" value="jdbc:mysql://localhost:3306/test?createDatabaseIfNotExist=true"/>      
       <property name="hibernate.cache.region.factory_class" value="org.hibernate.cache.ehcache.SingletonEhCacheRegionFactory"/>
       <property name="hibernate.cache.provider_configuration" value="classpath:ehcache.xml"></property>
      <property name="hibernate.use.second.level.cache" value="true"/>
      <property name="hibernate.cache.region_prefix" value="neutrino.jpa.cache"/>
      <property name="hibernate.cache.use_query_cache" value="false"/>
      <property name="hibernate.generate_statistics" value="true"/>
      <property name="hibernate.jdbc.batch_size" value="10"/>
      <property name="hibernate.order_updates" value="true"/>
      <property name="hibernate.order_inserts" value="true"/>
    <property name="org.hibernate.flushMode" value="COMMIT"/>    
  </persistence-unit>
</persistence>






















































































######################
### Query Language ###
######################

## define query language constants / function names

hibernate.query.substitutions yes 'Y', no 'N'


## select the classic query parser

#hibernate.query.factory_class org.hibernate.hql.classic.ClassicQueryTranslatorFactory



#################
### Platforms ###
#################

## JNDI Datasource

#hibernate.connection.datasource jdbc/test
#hibernate.connection.username db2
#hibernate.connection.password db2


## HypersonicSQL

hibernate.dialect org.hibernate.dialect.HSQLDialect
hibernate.connection.driver_class org.hsqldb.jdbcDriver
hibernate.connection.username sa
hibernate.connection.password
hibernate.connection.url jdbc:hsqldb:./build/db/hsqldb/hibernate
#hibernate.connection.url jdbc:hsqldb:hsql://localhost
#hibernate.connection.url jdbc:hsqldb:test

## H2 (www.h2database.com)
#hibernate.dialect org.hibernate.dialect.H2Dialect
#hibernate.connection.driver_class org.h2.Driver
#hibernate.connection.username sa
#hibernate.connection.password
#hibernate.connection.url jdbc:h2:mem:./build/db/h2/hibernate
#hibernate.connection.url jdbc:h2:testdb/h2test
#hibernate.connection.url jdbc:h2:mem:imdb1
#hibernate.connection.url jdbc:h2:tcp://dbserv:8084/sample;  
#hibernate.connection.url jdbc:h2:ssl://secureserv:8085/sample;  
#hibernate.connection.url jdbc:h2:ssl://secureserv/testdb;cipher=AES

## MySQL

#hibernate.dialect org.hibernate.dialect.MySQLDialect
#hibernate.dialect org.hibernate.dialect.MySQLInnoDBDialect
#hibernate.dialect org.hibernate.dialect.MySQLMyISAMDialect
#hibernate.connection.driver_class com.mysql.jdbc.Driver
#hibernate.connection.url jdbc:mysql:///test
#hibernate.connection.username gavin
#hibernate.connection.password


## Oracle

#hibernate.dialect org.hibernate.dialect.OracleDialect
#hibernate.dialect org.hibernate.dialect.Oracle9Dialect
#hibernate.connection.driver_class oracle.jdbc.driver.OracleDriver
#hibernate.connection.username ora
#hibernate.connection.password ora
#hibernate.connection.url jdbc:oracle:thin:@localhost:1521:orcl
#hibernate.connection.url jdbc:oracle:thin:@localhost:1522:XE


## PostgreSQL

#hibernate.dialect org.hibernate.dialect.PostgreSQLDialect
#hibernate.connection.driver_class org.postgresql.Driver
#hibernate.connection.url jdbc:postgresql:template1
#hibernate.connection.username pg
#hibernate.connection.password


## DB2

#hibernate.dialect org.hibernate.dialect.DB2Dialect
#hibernate.connection.driver_class com.ibm.db2.jcc.DB2Driver
#hibernate.connection.driver_class COM.ibm.db2.jdbc.app.DB2Driver
#hibernate.connection.url jdbc:db2://localhost:50000/somename
#hibernate.connection.url jdbc:db2:somename
#hibernate.connection.username db2
#hibernate.connection.password db2

## TimesTen

#hibernate.dialect org.hibernate.dialect.TimesTenDialect
#hibernate.connection.driver_class com.timesten.jdbc.TimesTenDriver
#hibernate.connection.url jdbc:timesten:direct:test
#hibernate.connection.username
#hibernate.connection.password 

## DB2/400

#hibernate.dialect org.hibernate.dialect.DB2400Dialect
#hibernate.connection.username user
#hibernate.connection.password password

## Native driver
#hibernate.connection.driver_class COM.ibm.db2.jdbc.app.DB2Driver
#hibernate.connection.url jdbc:db2://systemname

## Toolbox driver
#hibernate.connection.driver_class com.ibm.as400.access.AS400JDBCDriver
#hibernate.connection.url jdbc:as400://systemname


## Derby (not supported!)

#hibernate.dialect org.hibernate.dialect.DerbyDialect
#hibernate.connection.driver_class org.apache.derby.jdbc.EmbeddedDriver
#hibernate.connection.username
#hibernate.connection.password
#hibernate.connection.url jdbc:derby:build/db/derby/hibernate;create=true


## Sybase

#hibernate.dialect org.hibernate.dialect.SybaseDialect
#hibernate.connection.driver_class com.sybase.jdbc2.jdbc.SybDriver
#hibernate.connection.username sa
#hibernate.connection.password sasasa
#hibernate.connection.url jdbc:sybase:Tds:co3061835-a:5000/tempdb


## Mckoi SQL

#hibernate.dialect org.hibernate.dialect.MckoiDialect
#hibernate.connection.driver_class com.mckoi.JDBCDriver
#hibernate.connection.url jdbc:mckoi:///
#hibernate.connection.url jdbc:mckoi:local://C:/mckoi1.0.3/db.conf
#hibernate.connection.username admin
#hibernate.connection.password nimda


## SAP DB

#hibernate.dialect org.hibernate.dialect.SAPDBDialect
#hibernate.connection.driver_class com.sap.dbtech.jdbc.DriverSapDB
#hibernate.connection.url jdbc:sapdb://localhost/TST
#hibernate.connection.username TEST
#hibernate.connection.password TEST
#hibernate.query.substitutions yes 'Y', no 'N'


## MS SQL Server

#hibernate.dialect org.hibernate.dialect.SQLServerDialect
#hibernate.connection.username sa
#hibernate.connection.password sa

## JSQL Driver
#hibernate.connection.driver_class com.jnetdirect.jsql.JSQLDriver
#hibernate.connection.url jdbc:JSQLConnect://1E1/test

## JTURBO Driver
#hibernate.connection.driver_class com.newatlanta.jturbo.driver.Driver
#hibernate.connection.url jdbc:JTurbo://1E1:1433/test

## WebLogic Driver
#hibernate.connection.driver_class weblogic.jdbc.mssqlserver4.Driver
#hibernate.connection.url jdbc:weblogic:mssqlserver4:1E1:1433

## Microsoft Driver (not recommended!)
#hibernate.connection.driver_class com.microsoft.jdbc.sqlserver.SQLServerDriver
#hibernate.connection.url jdbc:microsoft:sqlserver://1E1;DatabaseName=test;SelectMethod=cursor

## The New Microsoft Driver 
#hibernate.connection.driver_class com.microsoft.sqlserver.jdbc.SQLServerDriver
#hibernate.connection.url jdbc:sqlserver://localhost

## jTDS (since version 0.9)
#hibernate.connection.driver_class net.sourceforge.jtds.jdbc.Driver
#hibernate.connection.url jdbc:jtds:sqlserver://1E1/test

## Interbase

#hibernate.dialect org.hibernate.dialect.InterbaseDialect
#hibernate.connection.username sysdba
#hibernate.connection.password masterkey

## DO NOT specify hibernate.connection.sqlDialect

## InterClient

#hibernate.connection.driver_class interbase.interclient.Driver
#hibernate.connection.url jdbc:interbase://localhost:3060/C:/firebird/test.gdb

## Pure Java

#hibernate.connection.driver_class org.firebirdsql.jdbc.FBDriver
#hibernate.connection.url jdbc:firebirdsql:localhost/3050:/firebird/test.gdb


## Pointbase

#hibernate.dialect org.hibernate.dialect.PointbaseDialect
#hibernate.connection.driver_class com.pointbase.jdbc.jdbcUniversalDriver
#hibernate.connection.url jdbc:pointbase:embedded:sample
#hibernate.connection.username PBPUBLIC
#hibernate.connection.password PBPUBLIC


## Ingres

## older versions (before Ingress 2006)

#hibernate.dialect org.hibernate.dialect.IngresDialect
#hibernate.connection.driver_class ca.edbc.jdbc.EdbcDriver
#hibernate.connection.url jdbc:edbc://localhost:II7/database
#hibernate.connection.username user
#hibernate.connection.password password

## Ingres 2006 or later

#hibernate.dialect org.hibernate.dialect.IngresDialect
#hibernate.connection.driver_class com.ingres.jdbc.IngresDriver
#hibernate.connection.url jdbc:ingres://localhost:II7/database;CURSOR=READONLY;auto=multi
#hibernate.connection.username user
#hibernate.connection.password password

## Mimer SQL

#hibernate.dialect org.hibernate.dialect.MimerSQLDialect
#hibernate.connection.driver_class com.mimer.jdbc.Driver
#hibernate.connection.url jdbc:mimer:multi1
#hibernate.connection.username hibernate
#hibernate.connection.password hibernate


## InterSystems Cache

#hibernate.dialect org.hibernate.dialect.Cache71Dialect
#hibernate.connection.driver_class com.intersys.jdbc.CacheDriver
#hibernate.connection.username _SYSTEM
#hibernate.connection.password SYS
#hibernate.connection.url jdbc:Cache://127.0.0.1:1972/HIBERNATE


#################################
### Hibernate Connection Pool ###
#################################

hibernate.connection.pool_size 1



###########################
### C3P0 Connection Pool###
###########################

#hibernate.c3p0.max_size 2
#hibernate.c3p0.min_size 2
#hibernate.c3p0.timeout 5000
#hibernate.c3p0.max_statements 100
#hibernate.c3p0.idle_test_period 3000
#hibernate.c3p0.acquire_increment 2
#hibernate.c3p0.validate false



##############################
### Proxool Connection Pool###
##############################

## Properties for external configuration of Proxool

hibernate.proxool.pool_alias pool1

## Only need one of the following

#hibernate.proxool.existing_pool true
#hibernate.proxool.xml proxool.xml
#hibernate.proxool.properties proxool.properties



#################################
### Plugin ConnectionProvider ###
#################################

## use a custom ConnectionProvider (if not set, Hibernate will choose a built-in ConnectionProvider using hueristics)

#hibernate.connection.provider_class org.hibernate.connection.DriverManagerConnectionProvider
#hibernate.connection.provider_class org.hibernate.connection.DatasourceConnectionProvider
#hibernate.connection.provider_class org.hibernate.connection.C3P0ConnectionProvider
#hibernate.connection.provider_class org.hibernate.connection.ProxoolConnectionProvider



#######################
### Transaction API ###
#######################

## Enable automatic flush during the JTA beforeCompletion() callback
## (This setting is relevant with or without the Transaction API)

#hibernate.transaction.flush_before_completion


## Enable automatic session close at the end of transaction
## (This setting is relevant with or without the Transaction API)

#hibernate.transaction.auto_close_session


## the Transaction API abstracts application code from the underlying JTA or JDBC transactions

#hibernate.transaction.factory_class org.hibernate.transaction.JTATransactionFactory
#hibernate.transaction.factory_class org.hibernate.transaction.JDBCTransactionFactory


## to use JTATransactionFactory, Hibernate must be able to locate the UserTransaction in JNDI
## default is java:comp/UserTransaction
## you do NOT need this setting if you specify hibernate.transaction.manager_lookup_class

#jta.UserTransaction jta/usertransaction
#jta.UserTransaction javax.transaction.UserTransaction
#jta.UserTransaction UserTransaction


## to use the second-level cache with JTA, Hibernate must be able to obtain the JTA TransactionManager

#hibernate.transaction.manager_lookup_class org.hibernate.transaction.JBossTransactionManagerLookup
#hibernate.transaction.manager_lookup_class org.hibernate.transaction.WeblogicTransactionManagerLookup
#hibernate.transaction.manager_lookup_class org.hibernate.transaction.WebSphereTransactionManagerLookup
#hibernate.transaction.manager_lookup_class org.hibernate.transaction.OrionTransactionManagerLookup
#hibernate.transaction.manager_lookup_class org.hibernate.transaction.ResinTransactionManagerLookup



##############################
### Miscellaneous Settings ###
##############################

## print all generated SQL to the console

#hibernate.show_sql true


## format SQL in log and console

hibernate.format_sql true


## add comments to the generated SQL

#hibernate.use_sql_comments true


## generate statistics

#hibernate.generate_statistics true


## auto schema export

#hibernate.hbm2ddl.auto create-drop
#hibernate.hbm2ddl.auto create
#hibernate.hbm2ddl.auto update
#hibernate.hbm2ddl.auto validate


## specify a default schema and catalog for unqualified tablenames

#hibernate.default_schema test
#hibernate.default_catalog test


## enable ordering of SQL UPDATEs by primary key

#hibernate.order_updates true


## set the maximum depth of the outer join fetch tree

hibernate.max_fetch_depth 1


## set the default batch size for batch fetching

#hibernate.default_batch_fetch_size 8


## rollback generated identifier values of deleted entities to default values

#hibernate.use_identifer_rollback true


## enable bytecode reflection optimizer (disabled by default)

#hibernate.bytecode.use_reflection_optimizer true



#####################
### JDBC Settings ###
#####################

## specify a JDBC isolation level

#hibernate.connection.isolation 4


## enable JDBC autocommit (not recommended!)

#hibernate.connection.autocommit true


## set the JDBC fetch size

#hibernate.jdbc.fetch_size 25


## set the maximum JDBC 2 batch size (a nonzero value enables batching)

#hibernate.jdbc.batch_size 5
#hibernate.jdbc.batch_size 0


## enable batch updates even for versioned data

hibernate.jdbc.batch_versioned_data true


## enable use of JDBC 2 scrollable ResultSets (specifying a Dialect will cause Hibernate to use a sensible default)

#hibernate.jdbc.use_scrollable_resultset true


## use streams when writing binary types to / from JDBC

hibernate.jdbc.use_streams_for_binary true


## use JDBC 3 PreparedStatement.getGeneratedKeys() to get the identifier of an inserted row

#hibernate.jdbc.use_get_generated_keys false


## choose a custom JDBC batcher

# hibernate.jdbc.factory_class


## enable JDBC result set column alias caching 
## (minor performance enhancement for broken JDBC drivers)

# hibernate.jdbc.wrap_result_sets


## choose a custom SQL exception converter

#hibernate.jdbc.sql_exception_converter



##########################
### Second-level Cache ###
##########################

## optimize chache for minimal "puts" instead of minimal "gets" (good for clustered cache)

#hibernate.cache.use_minimal_puts true


## set a prefix for cache region names

hibernate.cache.region_prefix hibernate.test


## disable the second-level cache

#hibernate.cache.use_second_level_cache false


## enable the query cache

#hibernate.cache.use_query_cache true


## store the second-level cache entries in a more human-friendly format

#hibernate.cache.use_structured_entries true


## choose a cache implementation

#hibernate.cache.provider_class org.hibernate.cache.EhCacheProvider
#hibernate.cache.provider_class org.hibernate.cache.EmptyCacheProvider
hibernate.cache.provider_class org.hibernate.cache.HashtableCacheProvider
#hibernate.cache.provider_class org.hibernate.cache.TreeCacheProvider
#hibernate.cache.provider_class org.hibernate.cache.OSCacheProvider
#hibernate.cache.provider_class org.hibernate.cache.SwarmCacheProvider


## choose a custom query cache implementation

#hibernate.cache.query_cache_factory



############
### JNDI ###
############

## specify a JNDI name for the SessionFactory

#hibernate.session_factory_name hibernate/session_factory


## Hibernate uses JNDI to bind a name to a SessionFactory and to look up the JTA UserTransaction;
## if hibernate.jndi.* are not specified, Hibernate will use the default InitialContext() which
## is the best approach in an application server

#file system
#hibernate.jndi.class com.sun.jndi.fscontext.RefFSContextFactory
#hibernate.jndi.url file:/

#WebSphere
#hibernate.jndi.class com.ibm.websphere.naming.WsnInitialContextFactory
#hibernate.jndi.url iiop://localhost:900/












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