Raible's Wiki: AppFuseSupport

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*[5] Database Questions and HowTos

*[6] Application Server Questions and HowTos

*[7] Using Anthill and CruiseControl

*[8] Hibernate Specific Questions

*[9] Archived Questions

*[5] JSF Specific HowTos

*[6] Database Questions and HowTos

*[7] Application Server Questions and HowTos

*[8] Using Anthill and CruiseControl

*[9] Hibernate Specific Questions

*[10] Archived Questions

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;:''Chances are you forgot to run "{{ant setup-tomcat}}" (or "{{ant setup}}" if you need to set up the database as well).''

;:''Chances are you forgot to run "{{ant setup-tomcat}}" (or "{{ant setup}}" if you need to set up the database as well). Also, if you're using Tomcat make sure you are using the latest [recommended release|DevelopmentEnvironment]. ''

* Why do I get this error "build.xml:1037: taskdef class org.apache.catalina.ant.ReloadTask cannot be found"?

;:''Ant cannot find the ReloadTask which is in $CATALINA_HOME\server\lib\catalina-ant.jar. You need to ensure env var CATALINA_HOME (Windows dir %CATALINA_HOME% or Unix ls $CATALINA_HOME) points to the tomcat install base directory. This error can also occur when you wrap the path in double quotes, (ie. if you have set CATALINA_HOME="c:\Tomcat 5.5" then remove the double quotes!). ''

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</div>

* When working on a team, how to run test of a specific POJO using db-load task only in that specific table as well?

;:''First, instead of using all the sample-data.xml file, create another file say sample-person.xml and there put the data that you want insert. After that you can do this:

ant test-dao -Dtestcase=PersonDao -Dfile=metadata/sql/sample-person.xml''

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* Do you have any Struts validator [examples?|http://phd.netcomp.monash.edu.au/RobertMarkBram/blog/detailPage.asp?id=46]

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!!Database Specific [#5]

* Why is the JSTL keyword 'empty' not working all the time?

;:''The empty keyword (pre JSP 2.0), only worked on java.util.List, java.util.Map, on Strings and arrays. Collections like java.util.Set were not supported. If you are using pre JSP 2.0 and want to test whether a Set is empty or not use: {{{

<c:if test="${mycollection['empty']}">.

}}}

The most reliable workaround to this problem I have found, is to use this notation:

{{{

<c:forEach items="${mycollection}" var="element" varStatus="rowNum">

<c:if test="${rowNum.count==1}">

<table>

<tr> <th> Value Header </th> </tr>

</c:if>

<tr>

<th>

<c:out value="${element.value}"/>

</th>

</tr>

<c:if test="${rowNum.last}">

</table>

</c:if>

</c:forEach>

}}}

This [article|http://weblogs.java.net/blog/mister__m/archive/2003/11/crazy_jstl_when.html] explains this in more detail. If you are using tomcat 5, this supports JSP 2.0 so you will not experience

this problem.''

!!JSF Specific [#5]

* I get an "Couldn't find template: /home/mats/myapp/metadata/templates/struts_form.xdt" when I run "ant setup test-all" after specifying "jsf" as web framework when running "ant new".

;:''This is caused by the failure of JSF to install. Start with a version that has [JSF pre-installed|https://appfuse.dev.java.net/files/documents/1397/37690/appfuse-jsf-1.9.3-src.zip].''

!!Database Specific [#6]

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;:''MySQL 4.1.7 requires you to add set the default character set to UTF-8 to get unicode support with AppFuse. To do this, add the following to your c:\Windows\my.ini or /etc/my.cnf file:''

;:''MySQL 4.1.7+ requires you to add set the default character set to UTF-8 to get unicode support with AppFuse. To do this, add the following to your c:\Windows\my.ini or /etc/my.cnf file:''

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* Can AppFuse talk to multiple [databases?|MultipleDatabases]

* Can I audit any changes to the [Database?|DatabaseAudit]

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;:''If a class with a natural key does not declare a version or timestamp property, it's more dificult to get saveOrUpdate() and cascades to work correctly. You might use a custom Hibernate Interceptor as discussed in this chapter. (On the other hand, if you're happy to use explicit save() and explicit update() instead of saveOrUpdate() and cascades, Hibernate doesn't need to be able to distinguish between transient and detached instances; so you can safely ignore this advice.) Composite natural keys extend the same ideas. {Hibernate in Action: pag.:333} ''

;:''If a class with a natural key does not declare a version or timestamp property, it's more dificult to get saveOrUpdate() and cascades to work correctly. You might use a custom Hibernate Interceptor as discussed in this chapter. (On the other hand, if you're happy to use explicit save() and explicit update() instead of saveOrUpdate() and cascades, Hibernate doesn't need to be able to distinguish between transient and detached instances; so you can safely ignore this advice.) Composite natural keys extend the same ideas. {Hibernate in Action: pag.:333}''

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* What [DB admin/clients|DBTools] can I use to administer my database?

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* How to [run AppFuse on Oracle|RunningOnOracle].

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!!Application Server Specific [#6]

* How do I use a JNDI DataSource instead of a Spring-managed one (1.9+):

;:In metadata/conf/tomcat-context*.xml, uncomment the JNDI DataSource settings. Then in web/WEB-INF/applicationContext-resources.xml, uncomment the JNDI "dataSource" bean - and delete the active "dataSource" bean. If you decide to make this a permanent change in your project, you can delete {{commons-dbcp.jar}} and {{commons-pool.jar}} from ''lib/jakarta-commons''.

!!Application Server Specific [#7]

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* How to setup/suppress [Tomcat 5.x Logging|Tomcat5Logging]

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!!Continuous Integration [#7]

!!Continuous Integration [#8]

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!!Hibernate Specific Questions [#8]

!!Hibernate Specific Questions [#9]

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* How do I get hold of the Hibernate session in my DAO?

;:''The DAO layer has the Hibernate sessionFactory injected (made available) to it through Spring and this entry in applicationContext-hibernate.xml:

* How do I get hold of the [Hibernate Session|GettingHibernateSession]?

* How do I [Setup Hibernate JMX?|HibernateJMX]

* Does Hibernate support [Pagination?|HibernatePagination]

* How do I fix a LazyInitializationException in my unit tests?

;:''See [Karl Baum's writeup on Lazy Initialization|http://www.jroller.com/page/kbaum/20040708]. In particular, the __Being Lazy in your Unit Tests__ section.''

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{{{

}}}

* __Do I have to use XDoclet to generate my *.hbm.xml files? Is it possible to override a single hbm.xml file and create it by hand?__

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So to access the Hibernate session from within your DAO, place a method like this in your DAO:

If you have an @hibernate.class tag on a POJO - hibernatedoclet will generate the mapping file into build/dao/gen. If you have a mapping file (*.hbm.xml) file for your POJO in the src/dao/**/model/*

directory, it will __overwrite__ the generated version. If you don't want to worry about the two conflicting - just remove the @ sign from @hibernate.class in your POJO and put your hbm.xml file in the {{model}}

directory.

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{{{

No build.xml modification are need for this to work. The "package-dao" target will include these mapping files:

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Session session = SessionFactoryUtils.getSession(getSessionFactory(), false);

{{{ <copy todir="${build.dir}/dao/gen">

</copy>}}}

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}}}

If you want to get rid of the hibernatedoclet process, you can do that- but make sure and run it first - and then copy all of the generated hbm.xml files into your {{model}} directory.

</div>

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* How do I get hold of the Hibernate session in my View code?

;:''To get hold of the Session in the view code, you need to lookup the SessionFactory defined in the applicationContext-hibernate.xml:

{{{

private void createApplicationContext() {

if (ctx == null) {

ctx =

WebApplicationContextUtils.getRequiredWebApplicationContext(servlet.getServletContext());

}

public net.sf.hibernate.Session getCurrentHibernateSession() {

createApplicationContext();

SessionFactory sessionFactory = (SessionFactory)ctx.getBean("sessionFactory");

SessionHolder sessionHolder = (SessionHolder)TransactionSynchronizationManager.getResource(sessionFactory);

net.sf.hibernate.Session currentSession = null;

Transaction currentTransaction = null;

if (sessionHolder!=null) {

currentSession = sessionHolder.getSession();

currentTransaction = sessionHolder.getTransaction();

}

return currentSession;

}

}}}

!!Archived Questions (no longer relevant) [#9]

!!Archived Questions (no longer relevant) [#10]

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