Manning - Hibernate in action.pdf

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

2、alSalesDepartmentManningPublicationsCo.209BruceParkAvenueFax:(203)661-9018Greenwich,CT06830email:manning@manning.com©2005byManningPublicationsCo.Allrightsreserved.Nopartofthispublicationmaybereproduced,storedinaretrievalsystem,ortransmitted,inanyformorbymeanselectron

3、ic,mechanical,photocopying,orotherwise,withoutpriorwrittenpermissionofthepublisher.Manyofthedesignationsusedbymanufacturersandsellerstodistinguishtheirproductsareclaimedastrademarks.Wherethosedesignationsappearinthebook,andManningPublicationswasawareofatrademarkclaim

4、,thedesignationshavebeenprintedininitialcapsorallcaps.Recognizingtheimportanceofpreservingwhathasbeenwritten,itisManning’spolicytohavethebookstheypublishprintedonacid-freepaper,andweexertourbesteffortstothatend..ManningPublicationsCo.Copyeditor:TiffanyTaylor209BruceP

5、arkAvenueTypesetter:DottieMarsicoGreenwich,CT06830Coverdesigner:LeslieHaimesISBN1932394-15-XPrintedintheUnitedStatesofAmerica12345678910–VHG–07060504LicensedtoJoseCarlosRomeroFigueroacontentsforewordxiprefacexiiiacknowledgmentsxvaboutt

6、hisbookxviaboutHibernate3andEJB3xxauthoronlinexxiaboutthetitleandcoverxxii1Understandingobject/relationalpersistence11.1Whatispersistence?3Relationaldatabases3■UnderstandingSQL4■UsingSQLinJava5■Persistenceinobject-orientedapplications51.2Theparadigmmismatch7Theproble

7、mofgranularity9■Theproblemofsubtypes10Theproblemofidentity11■Problemsrelatingtoassociations13Theproblemofobjectgraphnavigation14■Thecostofthemismatch151.3Persistencelayersandalternatives16Layeredarchitecture17■Hand-codingapersistencelayerwithSQL/JDBC18■Usingserializa

8、tion19■ConsideringEJBentitybeans20■Object-orienteddatabasesystems21Otheroptions221.4Object/relationalmapping22WhatisORM?23■GenericO