Differences in the Servlet Package

HydraExpress Servlet Reference Guide
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A.3 Differences in the Servlet Package

Table 10 describes Servlet package differences between the Servlet Specification and the HydraExpress C++ implementation.

Table 10: Differences in the Servlet package between HydraExpress and the Servlet Specification

Non-standard Class	Non-standard Members	Description of Difference
*rwsf::Config*	all	An extension to the specification that provides a base class for other *Config* classes
*rwsf::Enumeration*	all	An extension to the specification that takes advantage of C++ capabilities for iterating over a sequence of values
*rwsf::FilterConfig*	`getInitParameter()` `getInitParameterName()` `getServletContext()`	In HydraExpress, these methods are inherited from the base class *rwsf::Config*
*rwsf::ServletConfig*	`getInitParameter()` `getInitParameterName()` `getServletContext()`	In HydraExpress, these methods are inherited from the base class *rwsf::Config*
*rwsf::ServletContext*	`getRequestDispatcher()`	In HydraExpress, this method accepts an HTTP URL
	`getResource()`	Not included in this implementation. Use `getResourceData()` from rwsf::*ServletContext* instead
	`getResourceData()`	HydraExpress added this method as a safer alternative for C++ than the `getResourceAsStream()` method
	`getResourceAsStream()`	Not included in this implementation. Use `getResourceData()` from rwsf::*ServletContext* instead
*rwsf::ServletOutputStream*		Inherits from the basic *ostream* in C++ Standard Library
*rwsf::ServletRequest*	`getLocale()`	not supported in this release
	`getParameterMap()`	not supported in this release
	`getPayload()`	added method
	`getReader()`	not supported in this release
*rwsf::ServletResponse*	`appendPayload()`	added method
	`getBufferSize()`	not supported in this release
	`getCharacterEncoding()`	not supported in this release
	`getLocale()`	not supported in this release
	`getPayload()`	added method
	`setBufferSize(int size)`	not supported in this release
	`setLocale()`	not supported in this release
	`setPayload()`	added method
*rwsf::ServletException*	all methods	Inherits methods from C++ Standard Library *exception* class
*rwsf::ServletException*	`why()`	added method
*rwsf::ServletUnavailableException*		This implementation adds two constructors
*SingleThreadModel*	all	not supported. The deployment descriptor for a servlet provides similar functionality. See the HydraExpress Servlet Development Guide for details
*ServletInputStream*	all	not supported in this release
*ServletRequestWrapper*	all	not supported in this release
*ServletResponseWrapper*	all	not supported in this release

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