org.apache.jasper.servlet

Class JspServlet

java.lang.Object

javax.servlet.GenericServlet

javax.servlet.http.HttpServlet

org.apache.jasper.servlet.JspServlet

All Implemented Interfaces:

Serializable, javax.servlet.Servlet, javax.servlet.ServletConfig

public class JspServlet
extends javax.servlet.http.HttpServlet

The JSP engine (a.k.a Jasper). The servlet container is responsible for providing a URLClassLoader for the web application context Jasper is being used in. Jasper will try get the Tomcat ServletContext attribute for its ServletContext class loader, if that fails, it uses the parent class loader. In either case, it must be a URLClassLoader.

Author:

Anil K. Vijendran, Harish Prabandham, Remy Maucherat, Kin-man Chung, Glenn Nielsen

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
JspServlet()

Method Summary

Methods

Modifier and Type	Method and Description
void	destroy()
int	getJspCount() Returns the number of JSPs for which JspServletWrappers exist, i.e., the number of JSPs that have been loaded into the webapp with which this JspServlet is associated.
int	getJspErrorCount() Gets the number of errors triggered by JSP invocations.
int	getJspReloadCount() Gets the number of JSPs that have been reloaded.
void	init(javax.servlet.ServletConfig config)
void	service(javax.servlet.http.HttpServletRequest request, javax.servlet.http.HttpServletResponse response)
void	setJspReloadCount(int count) Resets the JSP reload counter.

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, getServletInfo, getServletName, init, log, log

Methods inherited from class java.lang.Object

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

Constructor Detail

JspServlet

public JspServlet()

Method Detail

init

public void init(javax.servlet.ServletConfig config)
          throws javax.servlet.ServletException

Specified by:

init in interface javax.servlet.Servlet

Overrides:

init in class javax.servlet.GenericServlet

Throws:

javax.servlet.ServletException

getJspCount

public int getJspCount()

Returns the number of JSPs for which JspServletWrappers exist, i.e., the number of JSPs that have been loaded into the webapp with which this JspServlet is associated.

This info may be used for monitoring purposes.

Returns:

The number of JSPs that have been loaded into the webapp with which this JspServlet is associated

setJspReloadCount

public void setJspReloadCount(int count)

Resets the JSP reload counter.

Parameters:

count - Value to which to reset the JSP reload counter

getJspReloadCount

public int getJspReloadCount()

Gets the number of JSPs that have been reloaded.

This info may be used for monitoring purposes.

Returns:

The number of JSPs (in the webapp with which this JspServlet is associated) that have been reloaded

getJspErrorCount

public int getJspErrorCount()

Gets the number of errors triggered by JSP invocations.

Returns:

The number of errors triggered by JSP invocations

service

public void service(javax.servlet.http.HttpServletRequest request,
           javax.servlet.http.HttpServletResponse response)
             throws javax.servlet.ServletException,
                    IOException

Overrides:

service in class javax.servlet.http.HttpServlet

Throws:

javax.servlet.ServletException

IOException

destroy

public void destroy()

Specified by:

destroy in interface javax.servlet.Servlet

Overrides:

destroy in class javax.servlet.GenericServlet