Method that returns multiple variables

Yes it can be done:public class TotallyUnrelatedBunchOfValues {

public String justAValue;

public int anAint;

public ResultSet rs;

public JFrame frame;

// etc. etc.

}

...

public TotallyUnrelatedBunchOfValues foo(TotallyUnrelatedBunchOfValues tubov) {

...

// alter anything in that tubov

...

return tubov;

}

I hope you do understand the design flaw of this all.

kind regards,

Jos

JosAHa at 2007-7-14 16:18:28 >

What I'm trying to do is create a pdf file. After OpenFile returns to main all of the variables (classes) I passed are still null. Would I be better off making those public and not worry about passing them to the method?

Ultimately I plan on adding a couple other methods. One to add content and one to close the file.

public static void main(String[] args) {

PdfReader sReader = null;

PdfWriter sWriter = null;

Document sDocument = null;

PdfContentByte scb = null;

int success = OpenFile(sWriter, sReader, sDocument,scb);

// Passed parameters are still null at this point

}

public static int OpenFile(PdfWriter inWriter, PdfReader inReader, Document inDocument, PdfContentByte incb) {

int OpenSuccess;

try{

//create a reader for a certain document

PdfReader reader = new PdfReader("invoicetemplate.pdf");

//retrieve the size of the first page

Rectangle psize = reader.getPageSize(1);

float width = psize.height();

float height = psize.width();

//creation of a document-object

Document document = new Document(new Rectangle(width, height));

document.setPageSize(psize);

//create a writer that listens to the document

PdfWriter writer = PdfWriter.getInstance(document, new FileOutputStream("NewInvoice.pdf"));

//we open the document

document.open();

//add content

PdfContentByte cb = writer.getDirectContent();

document.newPage();

PdfImportedPage page1 = writer.getImportedPage(reader, 1);

cb.addTemplate(page1,0,0);

// Set passed parameters equal to objects created

inWriter = writer;

inReader = reader;

inDocument = document;

incb = cb;

OpenSuccess = 0;

}

catch(Exception e) {

System.out.println(e.getMessage());

OpenSuccess = -1;

}

return OpenSuccess;

}

Ylzzirga at 2007-7-14 16:18:28 >

Or perhaps:

public static void main(String[] args) {

FileInfo fi = getFileInfo(); // queries user, presumably

int status = openFile(fi);

if (status == GOOD) {

processFile(fi);

}

}

or something like that, where FileInfo encapsulates readers and writers, or whatever.

paulcwa at 2007-7-14 16:18:28 >

paulcw,

I think, form what little I understand, that your suggestion to encapsulate is probably a better way to approach this. Basically setup the reader, writer, document, and contentbyte to be properties of a class and then create methods inside that class to set and get the properties. Can you tell me if I'm way out of bounds on this.

Ylzzirga at 2007-7-14 16:18:28 >