How to get a value from a Java bean

[droverflow]

Hi all,

I'm trying to create a Java bean and use it inside an expression, but can't figure out how to get it to work…

<activiti:formProperty id="firstName" name="First name" type="string" value="${Person.getFirstname()}" writable="false" />‍

package beans;import java.io.Serializable;public class Person implements Serializable {   private static final long serialVersionUID = 1L;      private String firstname = "xxx";      public Person() {      firstname = "xxx";   }      public void setFirstname() {      firstname = "xxx";   }      public String getFirstname() {      return firstname;   }}‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍

1. Do I have to create a .class or a .jar file out of my Java file?
2. In which directory do I have to put the created file?
3. Do I have to configure anything else (e.g. edit a config file)?
4. Do I have to restart Tomcat?
5. Anything else that is important?

I know that these are very basic questions, but unfortunately the Activiti user guide is not very appropriate for beginners…

Any help appreciated!

Regards,
Doc

[trademak]

Hi,

If you are looking for a more comprehensive introduction take a look at my Activiti in Action book.
I expect you want to use the Activiti Explorer to run the process?
If yes then you'll need to create a JAR file with your class implementation. This JAR file must be deployed in the WEB-INF/lib directory of the Activiti Explorer web application. And yes Tomcat has to be restarted.
And if you are not using the class as a Spring bean you'll also have to create a process variable with the bean instance.

Best regards,

[roig]

You will first need to understand the architecture you want to use in your application.

• Do you want to embed only the engine and create your own web-app (e.g. Jetty embedded)? if so then you will need to add the class to your class path.


• Do you want to use the web-explorer (i.e. use the demo?), then you will need to add it to the war file (I believe there is a way to dynamically add classes to the war - google it)


• I will follow trademak advise and say that reading Aactiviti in action is a great starting point.