1. Programmer's Guide
  2. Oracle XML Developer's Kit for C++
  3. Using the XSLT Processor for C++

29 Using the XSLT Processor for C++

An explanation is given of how to use the Extensible Stylesheet Language Transformation (XSLT) processor for C++.

Note:

Use the unified C++ application programming interface (API) in xml.hpp for Oracle XML Developer's Kit (XDK) applications. The older, nonunified C++ API in oraxml.hpp is deprecated and supported only for backward compatibility. It will be removed in a future release.

Accessing XSLT for C++

Extensible Stylesheet Language Transformation (XSLT) for C++ is provided with Oracle Database.

Sample files are located at xdk/demo/cpp/new.

readme.html in the root directory of the software archive contains release specific information including bug fixes and API additions.

Related Topics

XSL Namespace

This is the namespace for XSLT compilers and transformers.

XSL Interfaces

The XSL interfaces are described.

XslException Interface—Root interface for all XSLT-related exceptions.

Transformer Interface—Basic XSLT processor. You can use this interface to invoke all XSLT processors.

CompTransformer Interface—Extended XSLT processor. You can use this interface only with processors that create intermediate binary bytecode (currently only the XVM-based processor).

Compiler Interface—XSLT compiler. It is used for compilers that compile XSLT into binary bytecode.

See Also:

Oracle Database XML C++ API Reference package XSL APIs for C++

XSLT for C++ DOM Interface Usage

Basic usage of XSLT for C++ DOM is described.

There are two inputs to XMLParser.xmlparse():

  • The Extensible Markup Language (XML) document

  • The XSLT stylesheet to be applied to the XML document

An XSLT processor is initiated by invoking the tools factory to create a particular XSLT transformer or compiler.

An XSLT stylesheet is supplied to a transformer by invoking setXSL() member functions.

An XML instance document is supplied as a parameter to the transform member functions.

The resultant document (XML, HTML, Vector Markup Language (VML), and so on) is typically sent to an application for further processing. It is sent as a Document Object Model (DOM) tree or as a sequence of Simple API for XML (SAX) events. SAX events are produced if a SAX event handler is provided by the user.

The application terminates the XSLT processors by invoking their destructors.

Invoking XSLT for C++

You can invoke XSLT for C++ by invoking the executable on the command line or by writing C++ code and using the supplied APIs.

Command-Line Usage

XSLT for C++ can be called as an executable by invoking bin/xml.

See Also:

Table 5-4

Writing C++ Code to Use Supplied APIs

XSLT for C++ can be invoked by writing code to use the supplied APIs. The code must be compiled using the headers in directory public and linked against the libraries in directory lib . See Makefile or make.bat in xdk/demo/cpp/new for full details of how to build your program.

Using the Sample Files Included with the Software

Directory $ORACLE_HOME/xdk/demo/cpp/parser/ contains several XML applications that show how to use the XSLT for C++.

Table 29-1 XSLT for C++ Sample Files

Sample File Name Description 
XSLSampleMain.cpp
XSLSampleGen.cpp
XSLSampleGen.hpp

Sources for sample XSLT usage program. XSLSample takes two arguments, the XSLT stylesheet and the XML file. If you redirect stdout of this program to a file, you may have some output missing, depending on your environment. 

XVMSampleMain.cpp
XVMSampleGen.cpp
XVMSampleGen.hpp

Sources for the sample XSLT Virtual Machine (XVM) usage program.