Java APIs for Distributed Mode

In the .java source code, include the following:

RemoteConnection remoteConnection = new RemoteConnection(report);
remoteConnection.setHost("GRE_server_name");
remoteConnection.setPort("port");

• GRE_server_name is the name of the server where the GRE is running.
• port is the port number where the GRE is listening.

The code sample below updates the simple Java example to include the remote connection details for a GRE on a server named "huascar", listening on port 1974.

/*
 * FOURJS_START_COPYRIGHT(U,2003)
 * Property of Four Js*
 * (c) Copyright Four Js 2003, 2021. All Rights Reserved.
 * * Trademark of Four Js Development Tools Europe Ltd
 *   in the United States and elsewhere
 * 
 * Four Js and its suppliers do not warrant or guarantee that these samples are
 * accurate and suitable for your purposes.
 * Their inclusion is purely for information purposes only.
 * FOURJS_END_COPYRIGHT
 */

import com.fourjs.report.runtime.*;
import java.awt.Desktop;
import java.io.File;
import javax.xml.bind.annotation.XmlElement;
import javax.xml.bind.annotation.XmlRootElement;
import java.io.IOException;
import javax.xml.bind.JAXBException;
import org.xml.sax.SAXException;
import java.util.Vector;
import java.util.Date;
import java.io.Serializable;

//The XmlRootElement annotation causes an global element declaration to be produced in the schema.
@XmlRootElement
public class Sales {
//The XmlElement annotation maps a property to an XML element.
//The Genero Engine does not support optional variables so setting "required=true" is mandatory.
//If a variable needs to be optional then use "nillable=true" and set the variable to null when 
//there is no value. If a primitive type needs to be optional then use the corresponding 
//object wrapper instead (e.g java.lang.Integer for "int").
   @XmlElement(required = true, nillable = true)
   public String shopName;
   @XmlElement(required = true)
   public int zipCode;
   @XmlElement(required = true, nillable = true)
   public Date day;
 

//This and any other public collection will be serialized in the order they are declared descending //recursively into the classes contained in the collections.
    public Vector<SalesItem> items=new Vector<SalesItem>();

    public Sales(String shopName, int zipCode, Date day)
    {
        this.shopName=shopName;
        this.zipCode=zipCode;
        this.day=day;
        items.add(new SalesItem("Tablelamp",SalesItem.Category.Furniture,23.00,null));
        items.add(new SalesItem("Tablelamp",SalesItem.Category.Furniture,267.00, items.lastElement()));
        items.add(new SalesItem("Officechair",SalesItem.Category.Furniture,155.00, items.lastElement()));
        items.add(new SalesItem("Grandfather clock",SalesItem.Category.Furniture,329.00, items.lastElement()));
        items.add(new SalesItem("Scissors",SalesItem.Category.Supplies,19.00, items.lastElement()));
        items.add(new SalesItem("Measuring tape",SalesItem.Category.Supplies,23.00, items.lastElement()));
        items.add(new SalesItem("Sunglasses",SalesItem.Category.Travelling,15.95, items.lastElement()));
        items.add(new SalesItem("Penknife",SalesItem.Category.Travelling,6.25, items.lastElement()));
        items.add(new SalesItem("Ornateangel",SalesItem.Category.Art,1.95, items.lastElement()));
    }

/** Default Constructor that is required for JAXB deserialization.
    In this program this is never used.
*/
    public Sales() { assert false; }

/**
    Runs the report using the design file specified in args[0] or "SalesList.4rp" otherwise.
    The program creates the file "SalesList.pdf" and opens it using
Desktop.open() which will typically
    invoke the Acrobat Reader.
*/
    public static void main(String[] args) throws JAXBException, IOException, SAXException
    {
        String designFile;
        String outputFilename = "SalesList.pdf";
    
        if (args.length == 0) {
            designFile = "SalesList.4rp";
        } else {
            designFile = args[0];
        }

        FormatHandler handler = new FormatWriter(outputFilename);
        PDFRenderer renderer = new PDFRenderer(handler);
        FourRpLayouter report = new FourRpLayouter(designFile, renderer);

        //Set Distributed Mode
        RemoteConnection remoteConnection = new RemoteConnection(report);
        remoteConnection.setHost("huascar");
        remoteConnection.setPort(1974);
        //

        report.setDebugLevel(9);
        Sales data = new Sales("Columbus Arts", 75038, new Date());

        remoteConnection.runFromJAXBObject(data);
    
        // open the file
        File result = new File(outputFilename);
        Desktop desktop = Desktop.getDesktop();
        desktop.open(result);

  }

}

class SalesItem
{
    public enum Category {Furniture, Art, Supplies, Travelling };
    
    @XmlElement(required = true, nillable = true)
    public String articleName;
    @XmlElement(required = true, nillable = true)
    public Category category;
    @XmlElement(required = true)
    public double price;
    @XmlElement(required = true)
    public double runningTotal;
    
//The previous item is passed to allow computing the running total.
    public SalesItem(String articleName, Category category, double price, SalesItem previousItem)
    {
        this.articleName=articleName;
        this.category=category;
        this.price=price;
       
this.runningTotal=previousItem==null?price:previousItem.runningTotal+price;
    }

/** Default Constructor that is required for JAXB deserialization.
    In this program this is never used.
*/
    public SalesItem() { }
}