A Java class representing the Java part of the component must extend com.systinet.webfw.ComponentImpl. In its process method it parses the input parameter params and retrieves the tModelKey parameter.

If the JSP session does not yet contain an instance of the TModel object (the edited interface), it sends a request to BEA AquaLogic Service Registry to get that instance by key.

It then stores the returned instance to the session object.

It also takes care of handling the WizardIterator.CANCEL and WizardIterator.FINISH actions.

For the WizardIterator.CANCEL action, it stores an attribute in the request that can be displayed in the appropriate message through the JSP part of the component.

For the WizardIterator.FINISH action it should republish the instance of TModel into BEA AquaLogic Service Registry and store an attribute to request as a flag that the wizard was finished.

First, define a few variables:

// retrieve the request from the call context
WebRequest request = getRequest();
// session
Map session = getCurrentSession();

Next handle the WizardIterator.CANCEL action:

if (WizardIterator.CANCEL.equals(action)) {
    request.setAttribute(CANCELED, "true");
    return;
} 

Then, check whether the instance of TModel is already in the session. If it is not, parse the input parameter params for the TMODEL_KEY parameter, send a request to BEA AquaLogic Service Registry and store the response into the session.

The object the wizard should iterate over (the object that will be passed to the steps of the wizard for modification) must be stored into the session under the following string: WizardIterator.FORM.

TModel tModel = (TModel) session.get(getPrefix(params) + WizardIterator.FORM);
                    
if (tModel == null) {
     String tModelKey = (String) params.get(TMODEL_KEY);
     Get_tModelDetail get_tModelDetail = new Get_tModelDetail();
     String authInfo = UDDIUserRoles.getAuthInfo();
     get_tModelDetail.setAuthInfo(authInfo);
                    
    try {
        get_tModelDetail.addTModelKey(tModelKey);
        UDDI_Inquiry_PortType inquiry = UDDIApiHelper.getInquiry();
        TModelDetail tModelDetail = inquiry.get_tModelDetail(get_tModelDetail);
        tModel = tModelDetail.getTModelArrayList().get(0);
                    
        if (tModel.getCategoryBag() == null) {
            tModel.setCategoryBag(new CategoryBag());
        }
                    
        if (tModel.getDescriptionArrayList() == null) {
            tModel.addDescription(new Description());
        }
                    
        if (tModel.getOverviewDocArrayList() == null) {
            tModel.addOverviewDoc(new OverviewDoc());
        }
                    
        if (tModel.getOverviewDocArrayList().get(0).getOverviewURL() == null) {
            tModel.getOverviewDocArrayList().get(0).setOverviewURL(new OverviewURL());
        }
                    
    } catch (InvalidParameterException e) {
        throw new BUIDefaultException(BUIDefaultErrorCodes.UDDI_ERROR, e);
    } catch (UDDIException e) {
            throw new BUIDefaultException(BUIDefaultErrorCodes.UDDI_ERROR, e);
    }
                    
    session.put(getPrefix(params) + WizardIterator.FORM, tModel);
}

Finally we should handle the WizardIterator.FINISH action and republish the modified instance of the interface (TModel):

 if (WizardIterator.FINISH.equals(action)) {
    Save_tModel save_tModel = new Save_tModel();
    String authInfo = UDDIUserRoles.getAuthInfo();
    save_tModel.setAuthInfo(authInfo);
    UDDI_Publication_PortType publish = UDDIApiHelper.getPublishing();
    TModelDetail result = null;
    try {
        TModel cloned = (TModel) tModel.clone();
        cloned.normalize();
        save_tModel.addTModel(cloned);
        result = publish.save_tModel(save_tModel);
        request.setAttribute(RESULT_TMODEL_KEY,
        result.getTModelArrayList().get(0).getTModelKey());
    } catch (CloneNotSupportedException e) {
        throw new BUIDefaultException(BUIDefaultErrorCodes.INTERNAL_ERROR, e);
    } catch (UDDIException e) {
        throw new BUIDefaultException(BUIDefaultErrorCodes.UDDI_ERROR, e);
    }
} 

Bare display. The following is all the code you need to implement a wizard -- you need only pass the names of the step components and the object that should be passed to these steps (that is, the object that will be shared among them, the interface to be edited):

<syswf:component name="wizardIterator" prefix="wizard">
    <syswf:param name="componentNames" value="${wizardComponents}"/>
    <syswf:param name="stepNames" value="${wizardNames}"/>
    <syswf:param name="form" value="${form}"/>
</syswf:component>

Processing actions. Now add some processing logic. For cases in which the wizard is cancelled, the request will contain the attribute EditInterfaceWizard.CANCEL. We should check for the presence of this attribute and display an appropriate message if that check is positive. We should also check whether the wizard finishes. In such cases the request will contain the attribute EditInterfaceWizard.RESULT_TMODEL_KEY. If this attribute is present, we should display the message that the interface was successfully republished and provide the user a link to its details.

<c:choose>
    <c:when test="${empty canceled}">
        <c:choose>
            <c:when test="${empty resultTModelKey}">
                <syswf:component name="wizardIterator" prefix="wizard">
                    <syswf:param name="componentNames" 
                        value="${wizardComponents}"/>
                    <syswf:param name="stepNames" 
                        value="${wizardNames}"/>
                    <syswf:param name="form" value="${form}"/>
                 </syswf:component>
            </c:when>
            <c:otherwise>
                <p>Interface
                    <a target="_blank" 
                      href="<c:out value="${unsecureUrl}"/>
                        /browse/interfaceDetail?tModelKey=
                      <c:out value="${resultTModelKey}"/>"
                        title="View detail">
                      <c:out value="${form.name.value}"/>
                    </a>
                    has been republished.
                </p>
            </c:otherwise>
        </c:choose>
    </c:when>
    <c:otherwise>
        <p>
            Republishing of interface has been canceled.
        </p>
    </c:otherwise>
</c:choose>