CDI Beans not retaining values
Question
I'm working on a large JSF project but have noticed that none of my session beans are retaining their values. In order to try and find my error I created a test project with a simple injection, however I am still finding the session scoped bean is not retaining its values.
I have searched through stackoverflow.com (and spent several hours on Google) for an answer but cannot find one. I would be very grateful for any help.
I am using JSF 2.2, Netbeans 7.3.1 & Glassfish Server 4.0
The code for my simple test project is below.
beans.xml
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://java.sun.com/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/beans_1_0.xsd">
</beans>
index.xhtml
<?xml version='1.0' encoding='UTF-8' ?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml"
xmlns:h="http://xmlns.jcp.org/jsf/html">
<h:head>
<title>Title</title>
</h:head>
<h:body>
<h:form>
<h:inputText value="#{bean1.title}" />
<h:commandButton action="#{bean2.test()}" />
</h:form>
</h:body>
</html>
Bean1.java
package beans;
import javax.inject.Named;
import javax.enterprise.context.SessionScoped;
import java.io.Serializable;
@Named(value = "bean1")
@SessionScoped
public class Bean1 implements Serializable {
public Bean1() {
}
private String title;
public String getTitle() {
return title;
}
public void setTitle(String title) {
this.title = title;
}
}
Bean2.java
package beans;
import javax.inject.Named;
import javax.enterprise.context.RequestScoped;
import javax.inject.Inject;
@Named(value = "bean2")
@RequestScoped
public class Bean2 {
public Bean2() {
}
@Inject
Bean1 b1;
public String test()
{
System.out.println(b1.getTitle());
return null;
}
}
1 answers
solution1
2 ACCPTED 2014-03-09 21:19:54
If I had to guess, your CDI 1.0 beans.xml is causing confusion in the app server. Try upgrading to a CDI 1.1 beans.xml
<beans xmlns="http://xmlns.jcp.org/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee
http://xmlns.jcp.org/xml/ns/javaee/beans_1_1.xsd"
bean-discovery-mode="all">
</beans>
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