class Locator

Interface for associating a SAX event with a document location

Inheritance:


Public

Constructors and Destructor
Locator ()
Default constructor
virtual ~Locator ()
Destructor
The locator interface
virtual const XMLCh* getPublicId () const
Return the public identifier for the current document event
virtual const XMLCh* getSystemId () const
Return the system identifier for the current document event
virtual unsigned int getLineNumber () const
Return the line number where the current document event ends
virtual unsigned int getColumnNumber () const
Return the column number where the current document event ends
private Unimplemented constructors and operators
Locator (const Locator&)
Copy constructor
void operator= (const Locator&)
Assignment operator

Documentation

Interface for associating a SAX event with a document location.

If a SAX parser provides location information to the SAX application, it does so by implementing this interface and then passing an instance to the application using the document handler's setDocumentLocator method. The application can use the object to obtain the location of any other document handler event in the XML source document.

Note that the results returned by the object will be valid only during the scope of each document handler method: the application will receive unpredictable results if it attempts to use the locator at any other time.

SAX parsers are not required to supply a locator, but they are very strong encouraged to do so. If the parser supplies a locator, it must do so before reporting any other document events. If no locator has been set by the time the application receives the startDocument event, the application should assume that a locator is not available.

Constructors and Destructor

Locator()
Default constructor

virtual ~Locator()
Destructor

The locator interface

virtual const XMLCh* getPublicId() const
Return the public identifier for the current document event.

This will be the public identifier

Returns:
A string containing the public identifier, or null if none is available.
See Also:
getSystemId

virtual const XMLCh* getSystemId() const
Return the system identifier for the current document event.

If the system identifier is a URL, the parser must resolve it fully before passing it to the application.

Returns:
A string containing the system identifier, or null if none is available.
See Also:
getPublicId

virtual unsigned int getLineNumber() const
Return the line number where the current document event ends. Note that this is the line position of the first character after the text associated with the document event.
Returns:
The line number, or -1 if none is available.
See Also:
getColumnNumber

virtual unsigned int getColumnNumber() const
Return the column number where the current document event ends. Note that this is the column number of the first character after the text associated with the document event. The first column in a line is position 1.
Returns:
The column number, or -1 if none is available.
See Also:
getLineNumber

private Unimplemented constructors and operators

Locator(const Locator&)
Copy constructor

void operator=(const Locator&)
Assignment operator


This class has no child classes.
Version:
Revision:
See Also:
setDocumentLocator

alphabetic index hierarchy of classes


XML Parser for C++ 2.0
Copyright © IBM Corp, 1999
Center for Java Technology
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