Package org.apache.jasper.runtime

Class HttpJspBase

java.lang.Object

javax.servlet.GenericServlet

javax.servlet.http.HttpServlet

org.apache.jasper.runtime.HttpJspBase

All Implemented Interfaces:

Serializable, HttpJspPage, JspPage, Servlet, ServletConfig

public abstract class HttpJspBase
extends HttpServlet
implements HttpJspPage

This is the super class of all JSP-generated servlets.

Author:

Anil K. Vijendran

See Also:

Serialized Form

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	HttpJspBase()

Method Summary

Modifier and Type	Method	Description
protected void	_jspDestroy()
void	_jspInit()
abstract void	_jspService(HttpServletRequest request, HttpServletResponse response)	The _jspService()method corresponds to the body of the JSP page.
void	destroy()
String	getServletInfo()
void	init(ServletConfig config)
void	jspDestroy()	The jspDestroy() method is invoked when the JSP page is about to be destroyed.
void	jspInit()	The jspInit() method is invoked when the JSP page is initialized.
void	service(HttpServletRequest request, HttpServletResponse response)	Entry point into service.

Methods inherited from class javax.servlet.http.HttpServlet

doDelete, doGet, doHead, doOptions, doPost, doPut, doTrace, getLastModified, service

Methods inherited from class javax.servlet.GenericServlet

getInitParameter, getInitParameterNames, getServletConfig, getServletContext, getServletName, init, log, log

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface javax.servlet.Servlet

getServletConfig, service

Constructor Detail

HttpJspBase

protected HttpJspBase()

Method Detail

init

public final void init(ServletConfig config)
                throws ServletException

Specified by:

init in interface Servlet

Overrides:

init in class GenericServlet

Throws:

ServletException

getServletInfo

public String getServletInfo()

Specified by:

getServletInfo in interface Servlet

Overrides:

getServletInfo in class GenericServlet

destroy

public final void destroy()

Specified by:

destroy in interface Servlet

Overrides:

destroy in class GenericServlet

service

public final void service(HttpServletRequest request,
                          HttpServletResponse response)
                   throws ServletException,
                          IOException

Entry point into service.

Overrides:

service in class HttpServlet

Throws:

ServletException

IOException

jspInit

public void jspInit()

Description copied from interface: JspPage

The jspInit() method is invoked when the JSP page is initialized. It is the responsibility of the JSP implementation (and of the class mentioned by the extends attribute, if present) that at this point invocations to the getServletConfig() method will return the desired value.

A JSP page can override this method by including a definition for it in a declaration element.

A JSP page should redefine the init() method from Servlet.

Specified by:

jspInit in interface JspPage

_jspInit

public void _jspInit()

jspDestroy

public void jspDestroy()

Description copied from interface: JspPage

The jspDestroy() method is invoked when the JSP page is about to be destroyed.

A JSP page can override this method by including a definition for it in a declaration element.

A JSP page should redefine the destroy() method from Servlet.

Specified by:

jspDestroy in interface JspPage

_jspDestroy

protected void _jspDestroy()

_jspService

public abstract void _jspService(HttpServletRequest request,
                                 HttpServletResponse response)
                          throws ServletException,
                                 IOException

Description copied from interface: HttpJspPage

The _jspService()method corresponds to the body of the JSP page. This method is defined automatically by the JSP container and should never be defined by the JSP page author.

If a superclass is specified using the extends attribute, that superclass may choose to perform some actions in its service() method before or after calling the _jspService() method. See using the extends attribute in the JSP_Engine chapter of the JSP specification.

Specified by:

_jspService in interface HttpJspPage

Parameters:

request - Provides client request information to the JSP.

response - Assists the JSP in sending a response to the client.

Throws:

ServletException - Thrown if an error occurred during the processing of the JSP and that the container should take appropriate action to clean up the request.

IOException - Thrown if an error occurred while writing the response for this page.