发布于 2015-10-01 11:50:59 | 153 次阅读 | 评论: 0 | 来源: 网友投递
Hibernate 开源对象关系映射框架 ORM
Hibernate是一个开放源代码的对象关系映射框架，它对JDBC进行了非常轻量级的对象封装，使得Java程序员可以随心所欲的使用对象编程思维来操纵数据库。 Hibernate可以应用在任何使用JDBC的场合，既可以在Java的客户端程序使用，也可以在Servlet/JSP的Web应用中使用，最具革命意义的是，Hibernate可以在应用EJB的J2EE架构中取代CMP，完成数据持久化的重任。
Hibernate 5.0.2 发布了，完整的改进内容如下：
** Bug
* [HHH-9731] - Potential bug in SearchedCaseExpression type handling
* [HHH-10055] - Lazy loading of collections in enhanced entity not working
* [HHH-10110] - DerbyTenSevenDialect fails to update schema because of sequence error
* [HHH-10111] - AttributeConverter based attributes are not marked for update when their state is modified
* [HHH-10115] - HHH90000003: Use of DOM4J entity-mode is considered deprecated
* [HHH-10119] - Config setting names loaded from cfg.xml stored in augmented (prefixed with "hibernate.") form but not original form
* [HHH-10120] - InputStream not closed in ConfigLoader.loadConfigXmlResource(String)
* [HHH-10125] - KEY() function in HQL causes inaccurate SQL when map key is an entity
* [HHH-10126] - Table-backed sequences are not populated on creation using SchemaUpdate
* [HHH-10131] - CacheableFileXmlSource.doBind returns null instead of created binding when .hbm.xml.bin have not been created yet
* [HHH-10132] - ENTRY() function in HQL causes invalid SQL when map key is an entity
* [HHH-10133] - CatalogSeparator of dialect metadata not used in runtime, just in schema tool
* [HHH-10135] - DB2Dialect should override getSelectSequenceNextValString
* [HHH-10139] - <one-to-one> and <many-to-one> mapping with <formula>1</formula> related to a boolean field causes java.sql.SQLSyntaxErrorException:
* [HHH-10140] - Apache Derby does not support tuples in subqueries
* [HHH-10141] - ClassicQueryTranslatorFactory unable to determine the correct RevisionType type
* [HHH-10142] - Derby dialect missing SQL keyword
* [HHH-10149] - PostgreSQL81Dialect.#getForUpdateString(String aliases,LockOptions lockOptions) returning a wrong value for update String when aliases is an empty String
* [HHH-10150] - PostgreSQL -MultiTableBulkIdStrategy fails with multiple delete of parent entity in the same transaction
** New Feature
* [HHH-10045] - Force all columns in primary key to be non-null
** Task
* [HHH-9995] - Finish pgsql database profile
* [HHH-9996] - Finish Derby database profile
* [HHH-10154] - Change built-in JavaTypeDescriptor impls to not auto-register themselves with JavaTypeDescriptorRegistry
** Improvement
* [HHH-9685] - Envers should do nothing when JTA transaction is already marked as rollback-only
* [HHH-10066] - Drop and recreate AuxiliaryDatabaseObjects as part of schema update
* [HHH-10083] - Support replicated and distributed caches
* [HHH-10086] - Deprecate Dialect#getIdentityColumnString() and Dialect#getIdentitySelectString()
* [HHH-10121] - Have EMF#getProperties expose ValidatorFactory injected via 2-phase load
* [HHH-10129] - Evaluate AttributeConverter tests in hibernate-entitymanager for move to hibernate-core
** Patch
* [HHH-10108] - checkstyle test <module name="NewlineAtEndOfFile" /> causes build time problem
** Deprecation
* [HHH-10122] - Deprecate ".class" property-style entity-type-expression format
Hibernate是一个开放源代码的对象关系映射框架，它对JDBC进行了非常轻量级的对象封装，使得Java程序员可以随心所欲的使用对象编程思维来操纵数据库。 Hibernate可以应用在任何使用JDBC的场合，既可以在Java的客户端程序使用，也可以在Servlet/JSP的Web应用中使用，最具革命意义的是，Hibernate可以在应用EJB的J2EE架构中取代CMP，完成数据持久化的重任。