Re: Assign a param to a bean with <a4j:actionparam>
Hello,
I'm trying to pass a bean as parameter with <a4j:actionparam> in a JSF web app but it doesn't work. I succeed in doing it with a bean attribute, but it's not what I want.
The code of the first bean
FirstBean.java
public class FirstBean
{
private String name;
private String id;
//getters and setters
...
}
Code of the second bean
SecondBean.java
public class SecondBean
{
private FirstBean firstBean
//getter and setter
...
}
In my JSP, there is a data table using a result list which returns a List of FirstBean :
<rich:extendedDataTable value="#{searchBean.resultList}" var="item">
<rich:column>
<a4j:commandLink reRender="div_to_render">
<a4j:actionparam name="item" value="#{item}" assignTo="#{secondBean.firstBean}"/>
<h:outputText value="#{item.name}"/>
</a4j:commandLink>
</rich:column>
</rich:extendedDataTable>
I would retrieve the "item" values in a div like this :
<div id="div_to_render">
<h:outputText value="#{secondBean.firstBean.name}"/>
</div>
At the beginning, I had the faces-config.xml as follow:
<managed-bean> <managed-bean-name>firstBean</managed-bean-name> <managed-bean-class>package.FirstBean</managed-bean-class> <managed-bean-scope>none</managed-bean-scope> </managed-bean> <managed-bean> <managed-bean-name>secondBean</managed-bean-name> <managed-bean-class>package.SecondBean</managed-bean-class> <managed-bean-scope>session</managed-bean-scope> </managed-bean>
I have no error using this code, but #{secondBean.firstBean.name} is null.
then I add managed-property to make a link with the other bean :
faces-config.xml
<managed-bean>
<managed-bean-name>firstBean</managed-bean-name>
<managed-bean-class>package.FirstBean</managed-bean-class>
<managed-bean-scope>none</managed-bean-scope>
</managed-bean>
<managed-bean>
<managed-bean-name>secondBean</managed-bean-name>
<managed-bean-class>package.SecondBean</managed-bean-class>
<managed-bean-scope>session</managed-bean-scope>
<managed-property>
<property-name>firstBean</property-name>
<property-class>package.FirstBean</property-class>
<value>#{firstBean}</value>
</managed-property>
</managed-bean>
No error either in this case, and the bean attributes stay null...
Am I wrong, is it possible to do this ?
Thanks by advance.
Kevin
