Hi, I'm trying to add a custom data type to my smart service. Wit

...-
code :

import javax.xml.bind.annotation.XmlElement;
import javax.xml.bind.annotation.XmlRootElement;
import javax.xml.bind.annotation.XmlType;

@XmlRootElement(name="et_import", namespace="com.solse.et")
@XmlType(name="et_import", namespace="com.solse.et", propOrder={"first", "second"})

@PaletteInfo(paletteCategory = "Integration Services", palette = "Connectivity Services")
public class et_import extends AppianSmartService {

          private static class SampleBean {
private int first;
private String second;

@XmlElement
public int getFirst() {
return first;
}
public void setFirst(int first) {
this.first = first;
}

@XmlElement
public String getSecond() {
return second;
}
public void setSecond(String second) {
this.second = second;
}
}
          private static final Logger LOG = Logger.getLogger(et_import.class);
          private final SmartServiceContext smartServiceCtx;
          private String param0;
          privat...

...e String return0;

          @Override
          public void run() throws SmartServiceException {
                    // TODO Auto-generated method stub
                    log(Thread.currentThread().getStackTrace()[1].getMethodName());
          }

          public et_import(SmartServiceContext smartServiceCtx) {
                    super();
                    this.smartServiceCtx = smartServiceCtx;
                    log(Thread.currentThread().getStackTrace()[1].getMethodName());
                    ...

Sorry, I remaned the functions and the message corresponding to the code above is

Caused by: com.appiancorp.type.config.pojo.PojoTypeImportException: Could not generate XSDs for the classes [class com.solse.et.et_import]. Cause: com.sun.xml.bind.v2.runtime.IllegalAnnotationsException: 1 counts of IllegalAnnotationExceptions (APNX-1-4166-001)

The way that I typically create CDTs as java objects are as their own java file outside of my plugin. To do so take the following steps:

1. Create another java file called SampleBean.java with the correct package name and package imports which for you would be the JAXB Annotation example from this page: forum.appian.com/.../Defining_a_Custom_Data_Type

with this at the top:

package com.solse.et;

import javax.xml.bind.annotation.XmlElement;
import javax.xml.bind.annotation.XmlRootElement;
import javax.xml.bind.annotation.XmlType;

2. Change the private static class SampleBean to public class SampleBean

3. Change your datatype in your plugin to be:

<datatype key="et_importDTin" name="Et Import Data Type">
<class>com.solse.et.SampleBean</class>
</datatype>

Let me know if that works for you.

Thank you very very much Michael, it's much cleaner and works !

What I have to understand now is how to use it, that's to say set parameters from appian or get them back. Do I have to import it ?

Could you give me your use case so I could more clearly understand what you are trying to do? Are you trying to use the cdt as an input or output from your smart service?

If you actually take a look in Appain in the designer view
System->Data Management->Manage Data you can see the new CDT that was imported from the plugin.

Ok, that's fine, I see it. What I want to do is to be able to pass a bunch of values from an appian process to a java program, modify them, and returns results to the process. Inside java I think I have to write SampleBean sb = new SampleBean(); to get the values. I have to initialize them inside the process before but don't know how so far as it's the first time I use CDT (and Smart service either). For the output, I have to initialize output parameters and then find how to fetch them from the process ? Without using too much of your time, thanks for a few guidelines, it will help !

It actually doesn't sound like you need to be creating cdts with java code at all.

You can have your smart service take in and return primitive types like this example: forum.appian.com/.../Custom_Smart_Service_Plug-ins

I have to think about it, as I'm not sure to understand. You mean that I can get and set existing CDT values created directly in Appian with xsd ? I didn't thought about this idea. In which cases would it be interesting to create CDT with java ?

I was more saying that it is simpler to pass primitives into a smart service, do some calculations, return those primitives, and then assign the result to fields in a cdt - if that is what you are trying to do. Genenrally, creating CDT's with java is not really necessary unless you are building in a lot of functionality into the class - not just using the class as a holder for variables.