Xerces-C++  3.1.2
List of all members
XMLResourceIdentifier Class Reference

Public Types

Public Constants
enum  ResourceIdentifierType {
  SchemaGrammar = 0, SchemaImport, SchemaInclude, SchemaRedefine,
  ExternalEntity, UnKnown = 255

Public Member Functions

Constructors and Destructor
 XMLResourceIdentifier (const ResourceIdentifierType resourceIdentitiferType, const XMLCh *const systemId, const XMLCh *const nameSpace=0, const XMLCh *const publicId=0, const XMLCh *const baseURI=0, const Locator *locator=0)
 Constructor. More...
 ~XMLResourceIdentifier ()
 Destructor. More...
Public Methods
ResourceIdentifierType getResourceIdentifierType () const
const XMLChgetPublicId () const
const XMLChgetSystemId () const
const XMLChgetSchemaLocation () const
const XMLChgetBaseURI () const
const XMLChgetNameSpace () const
const LocatorgetLocator () const

Detailed Description

This class is used along with XMLEntityResolver to resolve entities. Instead of passing publicId and systemId on the resolveEntity call, as is done with the SAX entity resolver, an object of type XMLResourceIdentifier is passed. By calling the getResourceIdentifierType() method the user can determine which data members are available for inspection:

ResourceIdentifierType Available Data Members
SchemaGrammar schemaLocation, nameSpace & baseURI (current document)
SchemaImport schemaLocation, nameSpace & baseURI (current document)
SchemaInclude schemaLocation & baseURI (current document)
SchemaRedefine schemaLocation & baseURI (current document)
ExternalEntity systemId, publicId & baseURI (some items may be NULL)

The following resolver would provide the application with a special character stream for the entity with the system identifier "http://www.myhost.com/today":

#include <xercesc/util/XMLEntityResolver.hpp>
#include <xercesc/sax/InputSource.hpp>

 class MyResolver : public XMLEntityResolver {
   InputSource resolveEntity (XMLResourceIdentifier* xmlri);

  MyResolver::resolveEntity(XMLResourceIdentifier* xmlri) {
   switch(xmlri->getResourceIdentifierType()) {
    case XMLResourceIdentifier::SystemId:
     if (XMLString::compareString(xmlri->getSystemId(), "http://www.myhost.com/today")) {
      MyReader* reader = new MyReader();
      return new InputSource(reader);
     } else {
      return null;
     return null;

See also

Member Enumeration Documentation


Constructor & Destructor Documentation

XMLResourceIdentifier::XMLResourceIdentifier ( const ResourceIdentifierType  resourceIdentitiferType,
const XMLCh *const  systemId,
const XMLCh *const  nameSpace = 0,
const XMLCh *const  publicId = 0,
const XMLCh *const  baseURI = 0,
const Locator locator = 0 


XMLResourceIdentifier::~XMLResourceIdentifier ( )


Member Function Documentation

const XMLCh * XMLResourceIdentifier::getBaseURI ( ) const
const Locator * XMLResourceIdentifier::getLocator ( ) const
const XMLCh * XMLResourceIdentifier::getNameSpace ( ) const
const XMLCh * XMLResourceIdentifier::getPublicId ( ) const
XMLResourceIdentifier::ResourceIdentifierType XMLResourceIdentifier::getResourceIdentifierType ( ) const
const XMLCh * XMLResourceIdentifier::getSchemaLocation ( ) const
const XMLCh * XMLResourceIdentifier::getSystemId ( ) const

The documentation for this class was generated from the following file: