Is there a better way that I don't need to save those temperary files?

[Biying Huang <bi...@synthematix.com>]

I am learning how to use FOP to format a java object into a PDF file on
the fly. My current solution is to save the object as a temperary xml
file into some directory. Is there a better way that I don't need to
save those temperary files?

The java object is like this and all its attributes are populated from a
database:

MyObject {
     long id;
     String info;
     String imageFileName;
     byte[] image;
}

Step 1,  I save this object as myObject123.xml and its image file
123.jpg into some temp directory. The xml file looks like this:
<MyObject>
    <id>123</id>
    <info>object info</info>
    <imageFileName>123.jpg</imageFileName>
</MyObject>

Step 2, I create a xslt template file named myObject.xsl which has a
template to insert the image:
<xsl:template match=".">
     <fo:external-graphic>
        <xsl:attribute name="src"><xsl:value-of select="imageFileName"
/> </xsl:attribute>
      </fo:external-graphic>
</xsl:template>

Step 3, I call  the API like this:

    Driver driver = new Driver();
    driver.setRenderer( Driver.RENDER_PDF);
    driver.setOutputStream( out );

    XSLTInputHandler input =  new    XSLTInputHandler( new File(
"myObject123.xml" ),  new File( "myObject.xsl") );
    driver.render( input.getParser(),  input.getInputSource() );

Step 4. I delete all temperary files:  myObject123.xml and 123.jpg.

Thanks for any suggestions.

Biying

Re: Is there a better way that I don't need to save those temperary files?

["J.Pietschmann" <j3...@yahoo.de>]

Biying Huang wrote:
> I am learning how to use FOP to format a java object into a PDF file on
> the fly. My current solution is to save the object as a temperary xml
> file into some directory. Is there a better way that I don't need to
> save those temperary files?

Look here for the XML
  http://marc.theaimsgroup.com/?l=fop-user&m=102873292920835&w=2
it is a bit harder for the Images you probably should stick to
temporary files there.

J.Pietschmann