Using X-UP Model in a Nexacro Application

This chapter explains how to develop a Nexacro application using the model created in the "Developing a Model Using SAP RFC Invoke" section. The Nexacro application is developed using the Nexacro Studio tool.

This chapter is written under the assumption that the user is familiar with Nexacro and Nexacro Studio. Therefore, detailed information on the basic steps of Nexacro application development will not be provided.

The application development process using the X-UP model with Nexacro Studio, as explained in this chapter, consists of the following steps.

Registering TypeDefinition-Service

  1. Add a Service in TypeDefinition, as shown in the image below.

Field Name

Field Value

Prefix

XUP_SERVER

Enter the prefix used in the model invocation script code.

Type

bs

To invoke the X-UP model, the bs type must be selected.

URL

http://localhost:8080/xup/

Enter the X-UP server URL.

ServiceList

ServiceInfoServiceServlet.do?service=serviceInfo&target=modelList

Enter the service list invocation URL.

DatasetLayout

ServiceInfoServiceServlet.do?service=serviceInfo&target=modelLayout

Enter the URL to retrieve input and output information.

Getting the modellist and interface

  1. Refresh the selected Service in the Project Explorer to retrieve the model list from the X-UP server.

The retrieved model list is displayed by domain.

A domain is a namespace used to classify models and is set as the project name in X-UP Builder. In other words, each X-UP project corresponds to a single model domain.

  1. Refresh the 'INVOKE_SAP_RFC' model in the model list to retrieve interface information (input and output data).

Writting Model Invocation Script

  1. Drag & Drop the input and output datasets from the model's interface information in Project Explorer into the Invisible Objects Editor.

  1. Write the model invocation code in the Script Editor as follows.

this.btnSearch_onclick = function(obj:Button,  e:nexacro.ClickEventInfo)
{
	
	var svcparam 	= "domain=" 	+ "NexawebInc"   		// Domain name
					+ "&model=" 	+ "INVOKE_SAP_RFC"  	// Model name
					+ "&format=" 	+ "xml"
					+ "&version=" 	+ "nexacro";

	var svcUrl = "XUP_SERVER::FrontControllerServlet.do" +
							"?service=xupservice&" + svcparam;
    
    // Model Input parameters
    var strInDatasets = "";
    var strOutDatasets = "FLIGHT_LIST1=FLIGHT_LIST1";
    var strArgument = "";
    
	this.transaction("searchFlightList", svcUrl, strInDatasets, strOutDatasets
										, strArgument, "fn_Transaction_Callback");
	
}

this.fn_Transaction_Callback = function(strSvcID, nErrorCode, strErrorMag)
{
	if(nErrorCode < 0) {
		this.alert(strErrorMag);
		return;
	}
	
	if(strSvcID == "searchFlightList") {
		trace(this.FLIGHT_LIST1.saveXML());
	} 

}

The information required to invoke an X-UP model in Nexacro is as follows:


Service URL:

http://[host]:[port]/xup/FrontControllerServlet.do?service=xupservice

&domain=[DomainName]&model=[ModelName]&format=xml&version=nexacroInput Parameters: Input parameters required by each model should be passed using GET or POST methods.

  1. Run Quick View to check the results.