10 Package Xsl APIs for C++

Xsl package contains XSLT related types and interfaces.

This chapter contains these sections:

Xsl Datatypes
Compiler Interface
CompTransformer Interface
Transformer Interface
XSLException Interface

Xsl Datatypes

Table 10-1 summarizes the datatypes of the Xsl package.

Table 10-1 Summary of Datatypes; Xsl Package

Datatype	Description
XslCompIdType	Defines XSL compiler identifiers.
XslExceptionCode	Defines XSLT related exceptions.
XslTrIdType	Defines XSL transformer identifiers.

XslCompIdType

Defines XSL compiler identifiers.

Definition

typedef enum XslCompIdType {
   XvmCompCXml = 1
} XslCompIdType;

XslExceptionCode

Defines XSLT related exceptions.

Definition

typedef typedef enum XslExceptionCode {
   XSL_UNDEFINED_ERR = 0,
   XSL_OTHER_ERR = 1 
} XslExceptionCode;

XslTrIdType

Defines XSL transformer identifiers.

Definition

typedef enum XslTrIdType {
   XslTrCXml         = 1,
   XvmTrCXml         = 2
} XslTrIdType;

Compiler Interface

Table 10-2 summarizes the methods available through the Compiler interface.

Table 10-2 Summary of Compiler Methods; Xsl Package

Function	Summary
compile()	Compile Xsl and return its compiled binary representation.
getCompilerId()	Get compiler's Id.
getLength()	Get length of compiled XSL document.

compile()

Compiles Xsl and returns its compiled binary representation.

Syntax

virtual ub2* compile(
   InputSource* isrc_ptr)
throw (XslException) = 0;

Parameter	Description
isrc_ptr	Xsl document

Returns

(InputSource) Xsl document in compiled binary representation

getCompilerId()

Get the compiler Id.

Syntax

virtual XslCompIdType getCompilerId() const = 0;

Returns

(XslCompIdType) Compiler's Id

getLength()

Returns length of compiled XSL document

Syntax

virtual ub4 getLength( 
   ub2* binxsl_ptr)
throw (XslException) = 0;

Parameter	Description
binxsl_ptr	compiled Xsl document

Returns

(ub4) length of the document

CompTransformer Interface

Table 10-3 summarizes the methods available through the CompTransformer interface.

Table 10-3 Summary of CompTransformer Methods; Xsl Package

Function	Summary
getTransformerId()	Get transformer's Id.
setBinXsl()	Set compiled Xsl.
setSAXHandler()	Set SAX handler.
setXSL()	Set XSLT document for this transformer.
transform()	Transform the document.

getTransformerId()

Get transformer's id.

Syntax

virtual XslTrIdType getTransformerId() const = 0;

Returns

(XslTrIdType) Transformer's Id

setBinXsl()

Sets compiled Xsl.

Syntax

virtual void setBinXsl (
   ub2* binxsl_ptr)
throw (XslException) = 0;

Parameter	Description
binxsl_ptr	compiled Xsl document

setSAXHandler()

Inherited from Transformer.

Syntax

virtual void setSAXHandler(
   SAXHandlerRoot* hdlr_ptr) = 0;

Parameter	Description
hdlr_ptr	SAX handler pointer

setXSL()

Set XSLT document for this transformer. Should be called before the transform member function is called. It is inherited from Transform.

Syntax

virtual void setXSL (
   InputSource* isrc_ptr)
throw (XslException) = 0;

Parameter	Description
isrc_ptr	instance document to process

transform()

Transforms the document. Throws an exception if an XSLT document is not set by a previous call to setXSL. Inherited from Transform.

Syntax	Description
virtual NodeRef< Node>* transform( nputSource* isrc_ptr) throw (XslException) = 0;	Transform the document and return DOM.
virtual void transform( InputSource* isrc_ptr, SAXHandlerRoot* hdlr_ptr) throw (XslException) = 0;	Transform the document and return SAX events.

Parameter	Description
isrc_ptr	instance document to process
hdlr_ptr	SAX handler pointer

Returns

(DocumentRef) document tree of new document

Transformer Interface

Table 10-4 summarizes the methods available through the Transformer interface.

Table 10-4 Summary of Transformer Methods; Xsl Package

Function	Summary
getTransformerId()	Get transformer's Id.
setSAXHandler()	Set SAX handler.
setXSL()	Set XSLT document for this transformer.
transform()	Transform the document and return SAX events.

getTransformerId()

Gets transformer's id.

Syntax

virtual XslTrIdType getTransformerId() const = 0;

Returns

(XslTrIdType) Transformer's Id

setSAXHandler()

Set SAX handler.

Syntax

virtual void setSAXHandler( 
   SAXHandlerRoot* hdlr_ptr) = 0;

Parameter	Description
hdlr_ptr	SAX handler pointer

setXSL()

Set XSLT document for this transformer. Should be called before the transform member function is called.

Syntax

virtual void setXSL (
   InputSource* isrc_ptr)
throw (XslException) = 0;

Parameter	Description
isrc_ptr	instance document to process

transform()

Transforms the document. Throws an exception if an XSLT document is not set by a previous call to setXSL.

Syntax	Description
virtual NodeRef< Node>* transform( nputSource* isrc_ptr) throw (XslException) = 0;	Transform the document and return DOM.
virtual void transform( InputSource* isrc_ptr, SAXHandlerRoot* hdlr_ptr) throw (XslException) = 0;	Transform the document and return SAX events.

Parameter	Description
isrc_ptr	instance document to process
hdlr_ptr	SAX handler pointer

Returns

(DocumentRef) document tree of new document

XSLException Interface

Table 10-5 summarizes the methods available through the XSLException interface.

Table 10-5 Summary of XSLException Methods; Xsl Package

Function	Summary
getCode()	Get Oracle XML error code embedded in the exception.
getMesLang()	Get current language (encoding) of error messages.
getMessage()	Get Oracle XML error message.
getXslCode()	Defines a prototype for implementation.

getCode()

Gets Oracle XML error code embedded in the exception. Virtual member function inherited from XmlException.

Syntax

virtual unsigned getCode() const = 0;

Returns

(unsigned) numeric error code (0 on success)

getMesLang()

Virtual member function inherited from XmlException.

Syntax

virtual oratext* getMesLang() const = 0;

Returns

(oratext*) Current language (encoding) of error messages

getMessage()

Virtual member function inherited from XmlException

Syntax

virtual oratext* getMessage() const = 0;

Returns

(oratext *) Error message

getXslCode()

This is a virtual member function that defines a prototype for implementation defined member functions returning XSL transformer and compiler exception codes, defined in XslExceptionCode, of the exceptional situations during execution.

Syntax

virtual XslExceptionCode getXslCode() const = 0;

Returns

(XslExceptionCode) exception code