Hibernate in Action.pdf

《Hibernate in Action.pdf》由会员上传分享，免费在线阅读，更多相关内容在学术论文-天天文库。

1、HibernateinActionHibernateinActionCHRISTIANBAUERGAVINKINGMANNINGGreenwich(74°w.long.)ForonlineinformationandorderingofthisandotherManningbooks,pleasevisitwww.manning.com.Thepublisheroffersdiscountsonthisbookwhenorderedinquantity.Formoreinformation,pleasecontact:SpecialSalesDepartmentManni

2、ngPublicationsCo.209BruceParkAvenueFax:(203)661-9018Greenwich,CT06830email:manning@manning.com©2005byManningPublicationsCo.Allrightsreserved.Nopartofthispublicationmaybereproduced,storedinaretrievalsystem,ortransmitted,inanyformorbymeanselectronic,mechanical,photocopying,orotherwise,witho

3、utpriorwrittenpermissionofthepublisher.Manyofthedesignationsusedbymanufacturersandsellerstodistinguishtheirproductsareclaimedastrademarks.Wherethosedesignationsappearinthebook,andManningPublicationswasawareofatrademarkclaim,thedesignationshavebeenprintedininitialcapsorallcaps.Recognizingt

4、heimportanceofpreservingwhathasbeenwritten,itisManning’spolicytohavethebookstheypublishprintedonacid-freepaper,andweexertourbesteffortstothatend..ManningPublicationsCo.Copyeditor:TiffanyTaylor209BruceParkAvenueTypesetter:DottieMarsicoGreenwich,CT06830Coverdesigner:LeslieHaimesISBN1932394-

5、15-XPrintedintheUnitedStatesofAmerica12345678910–VHG–07060504LicensedtoJoseCarlosRomeroFigueroacontentsforewordxiprefacexiiiacknowledgmentsxvaboutthisbookxviaboutHibernate3andEJB3xxauthoronlinexxiaboutthetitleandcoverxxii1Understandingobject/relationalpersi

6、stence11.1Whatispersistence?3Relationaldatabases3■UnderstandingSQL4■UsingSQLinJava5■Persistenceinobject-orientedapplications51.2Theparadigmmismatch7Theproblemofgranularity9■Theproblemofsubtypes10Theproblemofidentity11■Problemsrelatingtoassociations13Theproblemofobjectgraphnavigation14■The

7、costofthemismatch151.3Persistencelayersandalternatives16Layeredarchitecture17■Hand-codingapersistencelayerwithSQL/JDBC18■Usingserialization19■ConsideringEJBentitybeans20■Object-orienteddatabasesystems21Otheroptions221.4Object/relationalmapping22WhatisORM?23■GenericO