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Posted to fop-users@xmlgraphics.apache.org by Prashant Neginahal <pr...@gmail.com> on 2011/08/19 11:29:50 UTC

PDF from Java Value Objects

Hi,

I am trying to explore this library to create PDF documents and gone through
all the examples.

In my application, we query database and get the value objects (java beans)
and out of this we need to create PDF files. I looked at ExampleJavatoPDF,
for me it looks too much of code (with SAXSource). I was thinking to use
JAXB annotations (jaxb is shipped with JDK1.6) and generate XML stream on
the fly and apply XSL to generate PDF.

The code looks as below.

JAXBContext context = JAXBContext.newInstance(valueObj.getClass());
Marshaller m = context.createMarshaller();

ByteArrayOutputStream xmlOut = new ByteArrayOutputStream();
m.marshal(valueObj, xmlOut);
byte[] o = xmlOut.toByteArray();
xmlOut.close();
ByteArrayInputStream in = new ByteArrayInputStream(o);

Source src = new StreamSource(in);
Result res = new SAXResult(fop.getDefaultHandler());
transformer.transform(src, res);

It works fine. My question is, is it best practice to generate PDF files
from Java Objects? Is there a better way? Can we generate XSL-FO from Java
objects?

Thanks in advance.

Regards,
Prashant
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Re: PDF from Java Value Objects

Posted by Prashant Neginahal <pr...@gmail.com>.
Could someone answer for this, please?

Thanks in advance.

--Prashant


Prashant Neginahal wrote:
> 
> Hi,
> 
> I am trying to explore this library to create PDF documents and gone
> through all the examples.
> 
> In my application, we query database and get the value objects (java
> beans) and out of this we need to create PDF files. I looked at
> ExampleJavatoPDF, for me it looks too much of code (with SAXSource). I was
> thinking to use JAXB annotations (jaxb is shipped with JDK1.6) and
> generate XML stream on the fly and apply XSL to generate PDF.
> 
> The code looks as below.
> 
> JAXBContext context = JAXBContext.newInstance(valueObj.getClass());
> Marshaller m = context.createMarshaller();
> 
> ByteArrayOutputStream xmlOut = new ByteArrayOutputStream();
> m.marshal(valueObj, xmlOut);
> byte[] o = xmlOut.toByteArray();
> xmlOut.close();
> ByteArrayInputStream in = new ByteArrayInputStream(o);
> 
> Source src = new StreamSource(in);
> Result res = new SAXResult(fop.getDefaultHandler());
> transformer.transform(src, res);
> 
> It works fine. My question is, is it best practice to generate PDF files
> from Java Objects? Is there a better way? Can we generate XSL-FO from Java
> objects?
> 
> Thanks in advance.
> 
> Regards,
> Prashant
> 

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