File Information
Library: XML
Package: SAX
Header: Poco/SAX/XMLFilter.h
Description
Interface for an XML filter.
An XML filter is like an XML reader, except that it obtains its events from another XML reader rather than a primary source like an XML document or database. Filters can modify a stream of events as they pass on to the final application.
The XMLFilterImpl helper class provides a convenient base for creating SAX2 filters, by passing on all EntityResolver, DTDHandler, ContentHandler and ErrorHandler events automatically.
Inheritance
Direct Base Classes: XMLReader
All Base Classes: XMLReader
Known Derived Classes: XMLFilterImpl, WhitespaceFilter
Member Summary
Member Functions: getParent, setParent
Inherited Functions: getContentHandler, getDTDHandler, getEntityResolver, getErrorHandler, getFeature, getProperty, parse, parseMemoryNP, setContentHandler, setDTDHandler, setEntityResolver, setErrorHandler, setFeature, setProperty
Destructor
~XMLFilter 
virtual ~XMLFilter();
Member Functions
getParent
virtual XMLReader * getParent() const = 0;
Set the parent reader.
This method allows the application to link the filter to a parent reader (which may be another filter). The argument may not be null.
setParent
virtual void setParent(
XMLReader * pParent
) = 0;
Get the parent reader.
This method allows the application to query the parent reader (which may be another filter). It is generally a bad idea to perform any operations on the parent reader directly: they should all pass through this filter.