Raible's Wiki: CreateDAO

At line 273 changed 2 lines.

;:I tend to just hard-code test values into Java code - but the .properties file is an option.

;:''I tend to just hard-code test values into Java code - but the .properties file is an option.''

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At this point, you should be able to compile all the source in src/dao and test/dao using "ant compile-dao". However, if you try to run "ant test-dao -Dtestcase=PersonDao", you will get an error: No bean named 'personDao' is defined. This is an error message from Spring - indicating that we need to specify a bean named ''personDAO'' in applicationContext-hibernate.xml. Before we do that, we need to create the PersonDao implementation class.

Notice in the class above there are no exceptions on the method signatures. This is due to the power of [Spring|http://www.springframework.org] and how it wraps Exceptions with RuntimeExceptions. At this point, you should be able to compile all the source in src/dao and test/dao using "ant compile-dao". However, if you try to run "ant test-dao -Dtestcase=PersonDao", you will get an error: No bean named 'personDao' is defined. This is an error message from Spring - indicating that we need to specify a bean named ''personDAO'' in applicationContext-hibernate.xml. Before we do that, we need to create the PersonDao implementation class.

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;:''The ant task for running tests is called "test-module." If you pass in a testcase parameter (using -Dtestcase=name), it will look for **/*${testcase}* - allowing us to pass in Person, PersonDao, or PersonDaoTest - all of which will execute the PersonDaoTest class.''

;:''The ant task for running dao tests is called "test-dao". If you pass in a testcase parameter (using -Dtestcase=name), it will look for **/*${testcase}* - allowing us to pass in Person, PersonDao, or PersonDaoTest - all of which will execute the PersonDaoTest class.''

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Let's start by creating a PersonDaoHibernate class that implements the methods in PersonDao and uses Hibernate to get/save/delete the Person object. To do this, create a new class in src/dao/**/persistence/hibernate and name it PersonDAOHibernate.java. It should extend Spring's [HibernateDaoSupport|http://www.springframework.org/docs/api/org/springframework/orm/hibernate/support/HibernateDaoSupport.html] and implement PersonDAO. ''Javadocs eliminated for brevity.''

Let's start by creating a PersonDaoHibernate class that implements the methods in PersonDao and uses Hibernate to get/save/delete the Person object. To do this, create a new class in src/dao/**/persistence/hibernate and name it PersonDAOHibernate.java. It should extend [BaseDaoHibernate|http://raibledesigns.com/downloads/appfuse/api/org/appfuse/persistence/BaseDAOHibernate.java.html] and implement PersonDAO. ''Javadocs eliminated for brevity.''

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/**

* This class interacts with Hibernate's Session object to save and

* retrieve Person objects.

*

*

* <a href="PersonDaoHibernate.java.html">View Source</a>

*

*

* @author <a href="mailto:[email protected]">Matt Raible</a>

* @version $Revision: 1.8 $ $Date: 2004/04/12 08:05:27 $

*/

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;:''You could also use __autowire="byName"__ to the <bean> and get rid of the "sessionFactory" property. Personally, I like having the dependencies of my objects documented (in XML).

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