Hi List,
I'm getting unexplainable MyFaces-Spring integration problems, I was
hoping someone could give a hint.
1/ First some setup info: I followed the Sping & JSF doc and did this
to integrate the two: (I will try to be being extensive as big errors
often small roots...)
1.1 Libs were added (in web-inf/lib of course; spring.jar & spring-
web.jar) Tools I use are: Eclipse 3.2, WTP plugin, Tomcat 5.12 and
Spring 1.2
1.2 web.xml features:
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>/WEB-INF/applicationContext.xml</param-value>
</context-param>
<context-param>
<param-name>log4jConfigLocation</param-name>
<param-value>/WEB-INF/log4j.properties</param-value>
</context-param>
<context-param>
<param-name>javax.faces.CONFIG_FILES</param-name>
<param-value>/WEB-INF/faces-config.xml</param-value>
</context-param>
... and:
<listener>
<listener-
class>org.apache.myfaces.webapp.StartupServletContextListener</
listener-class>
</listener>
... and:
<listener>
<listener-
class>org.springframework.web.util.Log4jConfigListener</listener-class>
</listener>
<listener>
<listener-
class>org.springframework.web.context.ContextLoaderListener</listener-
class>
</listener>
1.3 faces-config file features:
<application>
<variable-resolver>
org.springframework.web.jsf.DelegatingVariableResolver
</variable-resolver>
<locale-config>
<default-locale>fr</default-locale>
<supported-locale>nl</supported-locale>
<supported-locale>en</supported-locale>
</locale-config>
</application>
.... and an exampe how the JSF Managed beans are declared in this
faces-config.xml with Spring Managed beans: ("webfacade" is a Spring
Managed bean, cf Sping config file further)
<managed-bean>
<managed-bean-name>managerbean</managed-bean-name>
<managed-bean-class>be.mnemonica.web.beans.ManagerBean</managed-
bean-class>
<managed-bean-scope>session</managed-bean-scope>
<managed-property>
<property-name>facade</property-name>
<value>#{webfacade}</value>
</managed-property>
</managed-bean>
1.4 Sping applicationContext.xml: (extrait)
<bean id="jdo2Persistor"
class="be.mnemonica.persistence.JDO2PersistenceDelegator" >
<property name="modelPackageName">
<description> The name of the package where the model classes of
the application reside, for which this Persistence Delegator is
written) </description>
<value>be.mnemonica.model</value>
</property>
<property name="appMgr"><ref local="appmgr"/></property>
</bean>
<bean id="webfacade" class="be.mnemonica.client.WebFacade">
<property name="persistor">
<description>The Persistor Delegator for the Facade.
</description>
<ref local="jdo2Persistor"/>
</property>
</bean>
The idea is: this WebFacade is used by all JSF Managed beans to
delegate calls to the proper Delegator (e.g. CRUD Model-related calls
are delegated to the PersistenceDelgatorInterface - I have Sping
inject this Interface with a JDO2 Implementation implementing this
Interface.
Just to be explicit:
I have NOT declared my Spring beans as JSF manage beans (should I?)
I don't inject any Spring Managed bean with a JSF Managed bean
2/ Yet, the problems I'm having are substantial.
The JSF Managed beans just DON'T seem to be injected with
Sping-"filled" instances (the supposedly injected values are null)
E.g. in the case above, "modelPackageName" remained "null".
I could solve some issues by putting in all the JSF Managed beans'
Constructors: (e.g. in this JSF managerbean)
ApplicationContext ctx = FacesContextUtils.getWebApplicationContext
(FacesContext.getCurrentInstance());
facade = (WebFacade)ctx.getBean("webfacade");
Yet of course this is a pity; I'm hardwiring again & creating
explicit dependancies to Spring. (which is... the opposite of why I
turned to Spring in the first place!! :-))
--> Anyone else had issues like this? (or did I forget smth?)
Or, even if not, any genious idea how to make this work properly? (a
lesser genius idea that works will be admired as well ;-)
& Just to make sure I get the sequence right, is it correct that
this is the mechanism:
By these settings, every time a JSF Managed bean creates a JSF bean,
Spring intervenes and injects (in cascade) the configured properties. So
JSF bean creation USES Spring pre-configured Properties.
Last and least (small sub question) I haven't noticed a difference
when I leave the MyFaces 's "StartupServletContextListener" in, or
out the web.xml. --> Is it necessary?!
Thanks,
Philippe
