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org.javahispano.canyamo.services.presentation.xml
Class PDFTransformer  

java.lang.Object
  org.javahispano.canyamo.services.presentation.xml.PDFTransformer

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public class PDFTransformer

extends java.lang.Object

This class transforms XML files to PDF using XSL stylesheets. It's a singleton so only one instance will be created in the virtual machine. This transformer can ouput the transformation result as files or as an OuputStream. This second option typically will be used to redirect PDF output to a browse via response object.

This class initally doesn't support Xalan sources ( DOMSource, SAXSource ) but adding this support is mostly trival and will be similar to HTMLTransformer

This class supports the concept of stylesheet templates. You can use the createTemplate methods for storing stylesheets within the HTMLTransformer cache. These stylesheets will be reused each time so the overall performance increases. Here is a simple example of using PDF Transformer in a servlet:

PDFTransformer pdfTransformer = PDFTransformer.newInstance();
OutputStream out = response.getOutputStream();
pdfTransformer.transformToFile("article.xml","article.xsl",out);


If you would like to generate a file instead of using an output stream

PDFTransformer pdfTransformer = PDFTransformer.newInstance();
OutputStream out = response.getOutputStream();
pdfTransformer.transform("article.xml","article.xsl","article.pdf");


Version:

1.0

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Field Summary
private static HTMLTransformer	htmlTransformer           Description of the Field
private static PDFTransformer	singleton           Description of the Field

 

Constructor Summary
private	PDFTransformer()           Constructor

 

Method Summary
void	createTemplates(javax.xml.transform.Source source)           This method creates a template from a source stylesheet so the styleshhet can be reused.
void	createTemplates(java.lang.String source)           This method creates a template from a source stylesheet so the styleshhet can be reused.
static PDFTransformer	newInstance()           PDFTransformer will be a singleton object.
void	transform(java.lang.String xmlSource, java.lang.String xslSource, java.io.OutputStream out)           Transforms an XML source into a PDF using an XSL source.
void	transformToFile(java.lang.String xmlSource, java.lang.String xslSource, java.lang.String file)           Transforms an XML source into a PDF using an XSL source.

 

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

 

Field Detail

singleton

private static PDFTransformer singleton

Description of the Field

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htmlTransformer

private static HTMLTransformer htmlTransformer

Description of the Field

Constructor Detail

PDFTransformer

private PDFTransformer()

Constructor

Method Detail

newInstance

public static PDFTransformer newInstance()

PDFTransformer will be a singleton object. This methods return the unique instance of this class and creates it if necessary

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createTemplates

public void createTemplates(java.lang.String source)
                     throws TransformerException

This method creates a template from a source stylesheet so the styleshhet can be reused.

Typically will be used from within a document management system to store the common stylesheets (articles, news, etc.) used to transform documents.

Using this method ensures that stylesheets will be reused between transformations

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createTemplates

public void createTemplates(javax.xml.transform.Source source)
                     throws TransformerException

This method creates a template from a source stylesheet so the styleshhet can be reused.

Typically will be used from within a document management system to store the common stylesheets (articles, news, etc.) used to transform documents.

Using this method ensures that stylesheets will be reused between transformations

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transform

public void transform(java.lang.String xmlSource,
                      java.lang.String xslSource,
                      java.io.OutputStream out)
               throws TransformerException

Transforms an XML source into a PDF using an XSL source. The PDF is stored in the OuputStream specified. This can be util for example for redirecting a PDF file via Servlet's response object

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transformToFile

public void transformToFile(java.lang.String xmlSource,
                            java.lang.String xslSource,
                            java.lang.String file)
                     throws TransformerException

Transforms an XML source into a PDF using an XSL source. The PDF is stored in the specified file.

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Overview  Package   Class  Use  Deprecated  Index
Home >> All >> org >> javahispano >> canyamo >> services >> presentation >> [ xml overview ]	PREV CLASS  NEXT CLASS
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