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Apache JDO 3.2.1.pdf
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2024-05-25
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Apache JDO 3.2.1 英文版 (202405 整理) Devlive 开源社区整理,资源链接地址:https://docs.devlive.org/books/apache-jdo-en-202405
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目录
致谢
ApacheJDO
General
WhyJDO?
GettingStarted
Specifications
TCK
APIJavadoc
JDOvJPA
JDOvJPA:API
JDOvJPA:ORM
License
Implementations
JDO3.0Overview
References
Glossary
APIUsage
PersistenceManagerFactory
PersistenceManager
Transactions
Attach-Detach
FetchPlan/Groups
ObjectStates
ObjectRetrieval
Exceptions
JDOHelper
DataReplication
Types&Metadata
TypesofClasses
TypesofFields
MetaData
Annotations
jdoDTD/XSD
ormDTD/XSD
jdoqueryDTD/XSD
jdoconfigDTD/XSD
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致谢
当前文档《ApacheJDO3.2.1》由qianmoQ在Devlive开源社区(devlive.org)进行构建,生成于2024-
05-25。
Devlive开源社区(devlive.org)仅提供文档编写、整理、归类等功能,以及对文档内容的生成和导出工具。
文档内容由网友们编写和整理,Devlive开源社区(devlive.org)难以确认文档内容知识点是否错漏。如果您在阅读
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内容来源:ApacheJDOhttps://db.apache.org/jdo/
文档地址:https://docs.devlive.org/books/apache-jdo-en-202405
感谢开源软件https://www.bookstack.cn
分享,让知识传承更久远!感谢知识的创造者,感谢知识的分享者,也感谢每一位阅读到此处的读者,因为我们都将成为
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WelcometoApacheJDO,aprojectoftheApacheDBproject.Ourgoalisathrivingcommunity
ofusersanddevelopersofobjectpersistencetechnology.
JavaDataObjects(JDO)isastandardwaytoaccesspersistentdataindatabases,usingplain
oldJavaobjects(POJO)torepresentpersistentdata.Theapproachseparatesdata
manipulation(donebyaccessingJavadatamembersintheJavadomainobjects)fromdatabase
manipulation(donebycallingtheJDOinterfacemethods).Thisseparationofconcernsleads
toahighdegreeofindependenceoftheJavaviewofdatafromthedatabaseviewofthedata.
Interfacesaredefinedfortheuser’sviewofpersistence:
PersistenceManager:thecomponentresponsibleforthelifecycleofpersistent
instances,Queryfactory,andTransactionaccess
Query:thecomponentresponsibleforqueryingthedatastoreandreturningpersistent
instancesorvalues
Transaction:thecomponentresponsibleforinitiatingandcompletingtransactions
JDOisbeingdevelopedasaJavaSpecificationRequestintheJavaCommunityProcess.The
originalJDO1.0isJSR-12andthecurrentJDO3.2isJSR-243.
TheApacheJDOprojectisfocusedonbuildingtheJDOAPIandtheTCKforcompatibility
testingofJDOimplementations.CommercialandopensourceimplementationsofJDOare
availableforrelationaldatabases,objectdatabases,andfilesystems.Ifyouneedan
implementationforbuildingaJDOapplication,seeImplementations.
JDO3.2.1isreleased
JDO3.2.1hasbeenreleased.Thisreleasecontainsminorbugfixes,suchassupportforJava18,fixedwarnings
whenusingJava9,andmigrationofschemadescriptorURLstodb.apache.org.Foracompletelistofchanges
(featuresplusbugfixes)seeJDO3.2.1changes.Youcandownloadthereleasefromthedownloadspage.Youcanalso
usethenewreleaseinmavenprojectssimplybyreferencingthejdo-apiartifactinyourpom.xml.
JDO3.2isreleased
JDO3.2hasbeenreleased.Thisreleasecontainsminorbugfixesandseveralnewfeatures,suchassupportfor
Optional ,typesafequeriesandanupgradetoJDK1.8.Foracompletelistofchanges(featuresplusbugfixes)
seeJDO3.2changes.Youcandownloadthereleasefromthedownloadspage.Youcanalsousethenewreleasein
mavenprojectssimplybyreferencingthejdo-apiartifactinyourpom.xml.
JDO3.1isreleased
JDO3.1hasbeenreleased.Thisreleasecontainsminorbugfixes.Foracompletelistofchanges(featuresplusbug
fixes)seeJDO3.1changes.
JDO3.1-rc1isreleased
JDO3.1-rc1hasbeenreleased.Thisreleasecontainsminorbugfixes.Foracompletelistofchanges(featuresplus
bugfixes)seeJDO3.1-rc1changes.
JDONews
ApacheJDO
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