HttpJspBase (Apache Tomcat 7.0.109 API Documentation)

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 and Description

protected HttpJspBase()

Constructors
Modifier	Constructor and Description
`protected`	`HttpJspBase()`

Method Summary

Methods
Modifier and Type	Method and 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()` Called by the servlet container to indicate to a servlet that the servlet is being taken out of service.
`String`	`getServletInfo()` Returns information about the servlet, such as author, version, and copyright.
`void`	`init(ServletConfig config)` Called by the servlet container to indicate to a servlet that the servlet is being placed into service.
`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
```
    Description copied from class: GenericServlet
    
    Called by the servlet container to indicate to a servlet that the servlet is being placed into service. See Servlet.init(javax.servlet.ServletConfig).
    This implementation stores the ServletConfig object it receives from the servlet container for later use. When overriding this form of the method, call super.init(config).
    
    Specified by:
    
    init in interface Servlet
    
    Overrides:
    
    init in class GenericServlet
    
    Parameters:
    config - the ServletConfig object that contains configuration information for this servlet
    
    Throws:
    
    ServletException - if an exception occurs that interrupts the servlet's normal operation
    See Also:
    UnavailableException
  - getServletInfo
```
public String getServletInfo()
```
    Description copied from class: GenericServlet
    
    Returns information about the servlet, such as author, version, and copyright. By default, this method returns an empty string. Override this method to have it return a meaningful value. See Servlet.getServletInfo().
    
    Specified by:
    
    getServletInfo in interface Servlet
    
    Overrides:
    
    getServletInfo in class GenericServlet
    
    Returns:
    String information about this servlet, by default an empty string
  - destroy
```
public final void destroy()
```
    Description copied from class: GenericServlet
    
    Called by the servlet container to indicate to a servlet that the servlet is being taken out of service. See Servlet.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
    
    Parameters:
    request - the HttpServletRequest object that contains the request the client made of the servlet
    response - the HttpServletResponse object that contains the response the servlet returns to the client
    
    Throws:
    
    ServletException - if the HTTP request cannot be handled
    
    IOException - if an input or output error occurs while the servlet is handling the HTTP request
    See Also:
    Servlet.service(javax.servlet.ServletRequest, javax.servlet.ServletResponse)
  - 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.

Class HttpJspBase

Constructor Summary

Method Summary

Methods inherited from class javax.servlet.http.HttpServlet

Methods inherited from class javax.servlet.GenericServlet

Methods inherited from class java.lang.Object

Methods inherited from interface javax.servlet.Servlet

Constructor Detail

HttpJspBase

Method Detail

init

getServletInfo

destroy

service

jspInit

_jspInit

jspDestroy

_jspDestroy

_jspService