PowerPoint プレゼンテーション

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2 Java J2EE Spring Spring Dependency Injection AOP Java J2EE 2

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5 Application Java Enterprise API 5

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7 mod_jk2 AJP13 Coyote/JK2 Connector Session Apache2 Tomcat5-a AJP13 Coyote/JK2 Connector Session Tomcat5-b 7

8 CMT Sun : Niagara, Rock CPU 8

9 Rod Johnson DI with AOP DAO 9

10 Struts MVC Axis WebServices Application Hibernate O/R Mapping RDB Spring (Lightweight Container) Tomcat (Web Container) 10

11 Struts MVC Hibernate O/R Mapping JOTM RDB Axis WebServices Application JTA JMS Spring (Lightweight Container) TransactionManager Tomcat (Web Container) 11

13 Java Not EJB!! POJO EJB 13

14 EJB CM SessionBean AOP POJO CMP EntityBean O/R POJO 14

15 EJB Web 15

16 (EJB2.0) EJB Web EJB Remote? 16

17 TDD EJB 17

19 J2EE 19

20 package app; public class Foo { private BarDao bardao;... } package dao; public interface BarDao { public Bar getbar(string id); } 20

21 package app; public class Foo { } private BarDao bardao; public Foo() { } bardao = new BarDaoImpl(...); 21

22 Foo <<Interface>> BarDao BarDaoImpl 22

23 package app; } public class Foo { private BarDao bardao; public Foo() { }... DaoFactory factory = new DaoFactory(); bardao = (BarDao) factory.getdao(...); 23

24 Foo <<Interface>> BarDao BarDaoImpl DaoFactory 24

25 package app; public class Foo { } private BarDao bardao; public void setbardao(bardao bardao) { }... this.bardao = bardao; 25

26 Foo <<Interface>> BarDao BarDaoImpl Assembler (DI ) 26

27 public class FooTest extends junit.framework.testcase { public void testdosomething() { Foo foo = new Foo(); foo.setbardao(new BarDaoMock()); foo.dosomething(); } } 27

28 28

29 DynamicProxy expectation EasyMock (extention1.1) DynaMock 29

30 MockControl control = MockControl.createControl(BarDao.class); BarDao mock = (BarDao) control.getmock(); Foo foo = new Foo(); foo.setbardao(mock); Mock control.expectandreturn(mock.getbar(...), new Bar(...)); control.replay(); foo.dosomething(...); control.verify(); mock getbar 30

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35 : Don t call us. We ll call you. Don t call us. We ll call you. 35

36 IoC API Setter Injection Constructor Injection (Immutable ) DI POJO 36

37 Foo <<Interface>> BarDao BarDaoImpl Spring (DI ) applicationcontext.xml 37

38 <beans> <bean id= foo class= app.foo singleton= false > <property name= bardao > <ref bean= bar /> </property> </bean> <bean id= bar class= dao.bardaoimpl singleton= false >... </bean> </beans> 38

39 <beans> <bean id= hoge class= app.hoge > <property name= stringprop > <value>hello</value> </property> <property name= intprop > <value>1</value> </property> </bean> </beans> 39

40 public Foo(BarDao bardao) {...} <beans> <bean id= foo class= app.foo singleton= false > <constructor-arg><ref bean= bar /></constructor-arg> </bean> <bean id= bar class= dao.bardaoimpl singleton= false > </beans> 40

41 Static Factory public class Hoge { public static Hoge getinstance(string hoge) {...} } <beans> <bean id= hoge class= app.hoge singleton= true factory-method="getinstance"> <constructor-arg><value>hello</value></constructor-arg> </bean> </beans> 41

42 Factory public class HogeFactory { public Hoge createhoge(string hoge) {...} } <beans> <bean id= hoge class= app.hoge singleton= false factory-bean= app.hogefactory" factory-method= createhoge"> <constructor-arg><value>hello</value></constructor-arg> </bean> </beans> 42

43 ApplicationContext context = new FileSystemXmlApplicationContext("applicationContext.xml"); Foo foo = (Foo) context.getbean( foo ); BarDao bardao = foo.getbardao(); 43

44 Tomcat <Resource name="usertransaction" auth="container type="javax.transaction.usertransaction"/> <ResourceParams name="usertransaction"> <parameter> </parameter> </ResourceParams> JNDI Context ctx = new InitialContext(); UserTransaction tx = (UserTransaction)ctx.lookup("java:comp/UserTransaction"); 44

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46 ControllerDispatcher HTTP Resources ServletContext web.xml ApplicationContext applicationcontext.xml server.xml (Tomcat) JNDI 46

48 (Aspect) Aspect joinpoint advice weave 48

49 EJB CM AOP SessionBean POJO CMP O/R EntityBean POJO 49

50 Logic A Logic B Logic C Crosscutting Concerns System Services 50

51 Logic A Logic B Logic C advice Aspect weave 51

52 DynamicProxy 52

53 User Thread Client (Action) TransactionInterceptor around advice weave Facade joinpoint Transaction begin commit/rollback DAO update DataSource 53

54 public Object invoke(methodinvocation invocation) throws Throwable { Class targetclass = (invocation.getthis()!= null)? invocation.getthis().getclass() : null; TransactionInfo txinfo = createtransactionifnecessary(invocation.getmethod(), targetclass); Object retval = null; try { retval = invocation.proceed(); } catch (Throwable ex) { doclosetransactionafterthrowing(txinfo, ex); throw ex; } finally { dofinally(txinfo); } docommittransactionafterreturning(txinfo); return retval; } 54

55 <bean id= facade" class="org.springframework.transaction.interceptor. TransactionProxyFactoryBean > <property name="transactionmanager"> <ref bean="transactionmanager"/> </property> <property name="target"><ref bean= FacadeImpl"></property> <property name="transactionattributes"> <props> <prop key="insert*">propagation_required</prop> <prop key="update*">propagation_required</prop> <prop key="*">propagation_required,readonly</prop> </props> </property> </bean> 55

56 Client DynamicProxy TransactionInterceptor getbean( facade ) <<interface>> Facade FacadeImpl 56

57 Transaction boundary (AOP) Struts MVC Axis WebServices POJO Application Hibernate O/R Mapping RDB Spring (Lightweight Container) Tomcat (Web Container) 57

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60 Spring Reference Documentation Developing a Spring Framework MVC application step-by-step Java Bruce A.Tate, Justin Gehtland, O Reilly Japan JUnit Vincent Massol, Ted Husted ( ), 60

Microsoft PowerPoint - JavaFesta.ppt

Microsoft PowerPoint - JavaFesta.ppt DI コンテナ Spring Framework による次世代 Java EE アプリケーション開発河村嘉之日立ソフト研究部技師 / ソリューションアーキテクト Copyright Hitachi Softweare 2005 Engineering Hitachi Co., Software Ltd. 2004 Engineering All rights reserved. Co., Ltd.