Uses of Package
javax.servlet

Packages that use javax.servlet
com.caucho.amber.filters   
com.caucho.bayeux   
com.caucho.boot   
com.caucho.burlap.server   
com.caucho.doc   
com.caucho.ejb   
com.caucho.ejb.burlap   
com.caucho.ejb.hessian   
com.caucho.filters   
com.caucho.hemp.servlet   
com.caucho.hessian.server   
com.caucho.hessian.test   
com.caucho.http.log   
com.caucho.j2ee.deployserver   
com.caucho.jms.services   
com.caucho.jsf.context   
com.caucho.jsf.dev   
com.caucho.jsf.webapp   
com.caucho.jsp   
com.caucho.jsp.cfg   
com.caucho.jsp.el   
com.caucho.jsp.java   
com.caucho.jsp.jsf   
com.caucho.jws   
com.caucho.portal.generic   
com.caucho.protocols.flash   
com.caucho.quercus   
com.caucho.quercus.env   
com.caucho.quercus.lib   
com.caucho.quercus.servlet   
com.caucho.remote.burlap   
com.caucho.remote.hessian   
com.caucho.remote.server   
com.caucho.resin.deploy   
com.caucho.server.admin   
com.caucho.server.cache   
com.caucho.server.connection   
com.caucho.server.dispatch   
com.caucho.server.hmux   
com.caucho.server.http   
com.caucho.server.log   
com.caucho.server.rewrite   
com.caucho.server.security   
com.caucho.server.session   
com.caucho.server.webapp   
com.caucho.services.server   
com.caucho.servlet.comet   
com.caucho.servlets   
com.caucho.servlets.ssi   
com.caucho.servlets.webdav   
com.caucho.tools.profiler   
com.caucho.vfs.remote   
com.caucho.web.webmail   
com.caucho.xtpdoc   
javax.script.http   
javax.servlet   
javax.servlet.http   
javax.servlet.http.annotation   
javax.servlet.jsp   
javax.servlet.jsp.jstl.core   
 

Classes in javax.servlet used by com.caucho.amber.filters
Filter
          Filters the request or response to a servlet.
FilterChain
          Represents the next filter in a filter chain.
FilterConfig
          Configuration for a filter.
ServletException
          A servlet exception.
ServletRequest
          ServletRequest encapsulates client request data.
ServletResponse
          ServletReponse control the output to the client.
 

Classes in javax.servlet used by com.caucho.bayeux
GenericServlet
          GenericServlet is a convenient abstract class for defining Servlets.
Servlet
          A servlet is any Java class with a null-arg constructor that implements the Servlet API.
ServletConfig
          ServletConfig encapsulates servlet configuration and gives access to the application (servlet context) object.
ServletException
          A servlet exception.
ServletRequest
          ServletRequest encapsulates client request data.
ServletResponse
          ServletReponse control the output to the client.
 

Classes in javax.servlet used by com.caucho.boot
GenericServlet
          GenericServlet is a convenient abstract class for defining Servlets.
Servlet
          A servlet is any Java class with a null-arg constructor that implements the Servlet API.
ServletConfig
          ServletConfig encapsulates servlet configuration and gives access to the application (servlet context) object.
 

Classes in javax.servlet used by com.caucho.burlap.server
GenericServlet
          GenericServlet is a convenient abstract class for defining Servlets.
Servlet
          A servlet is any Java class with a null-arg constructor that implements the Servlet API.
ServletConfig
          ServletConfig encapsulates servlet configuration and gives access to the application (servlet context) object.
ServletException
          A servlet exception.
ServletRequest
          ServletRequest encapsulates client request data.
ServletResponse
          ServletReponse control the output to the client.
 

Classes in javax.servlet used by com.caucho.doc
GenericServlet
          GenericServlet is a convenient abstract class for defining Servlets.
Servlet
          A servlet is any Java class with a null-arg constructor that implements the Servlet API.
ServletConfig
          ServletConfig encapsulates servlet configuration and gives access to the application (servlet context) object.
ServletException
          A servlet exception.
ServletRequest
          ServletRequest encapsulates client request data.
ServletResponse
          ServletReponse control the output to the client.
 

Classes in javax.servlet used by com.caucho.ejb
GenericServlet
          GenericServlet is a convenient abstract class for defining Servlets.
Servlet
          A servlet is any Java class with a null-arg constructor that implements the Servlet API.
ServletConfig
          ServletConfig encapsulates servlet configuration and gives access to the application (servlet context) object.
ServletException
          A servlet exception.
ServletRequest
          ServletRequest encapsulates client request data.
ServletResponse
          ServletReponse control the output to the client.
 

Classes in javax.servlet used by com.caucho.ejb.burlap
GenericServlet
          GenericServlet is a convenient abstract class for defining Servlets.
Servlet
          A servlet is any Java class with a null-arg constructor that implements the Servlet API.
ServletConfig
          ServletConfig encapsulates servlet configuration and gives access to the application (servlet context) object.
 

Classes in javax.servlet used by com.caucho.ejb.hessian
GenericServlet
          GenericServlet is a convenient abstract class for defining Servlets.
Servlet
          A servlet is any Java class with a null-arg constructor that implements the Servlet API.
ServletConfig
          ServletConfig encapsulates servlet configuration and gives access to the application (servlet context) object.
 

Classes in javax.servlet used by com.caucho.filters
Filter
          Filters the request or response to a servlet.
FilterChain
          Represents the next filter in a filter chain.
FilterConfig
          Configuration for a filter.
ServletException
          A servlet exception.
ServletOutputStream
          Servlets can use ServletOutputStream to write binary data to the response.
ServletRequest
          ServletRequest encapsulates client request data.
ServletResponse
          ServletReponse control the output to the client.
 

Classes in javax.servlet used by com.caucho.hemp.servlet
GenericServlet
          GenericServlet is a convenient abstract class for defining Servlets.
Servlet
          A servlet is any Java class with a null-arg constructor that implements the Servlet API.
ServletConfig
          ServletConfig encapsulates servlet configuration and gives access to the application (servlet context) object.
ServletException
          A servlet exception.
ServletRequest
          ServletRequest encapsulates client request data.
ServletResponse
          ServletReponse control the output to the client.
 

Classes in javax.servlet used by com.caucho.hessian.server
GenericServlet
          GenericServlet is a convenient abstract class for defining Servlets.
Servlet
          A servlet is any Java class with a null-arg constructor that implements the Servlet API.
ServletConfig
          ServletConfig encapsulates servlet configuration and gives access to the application (servlet context) object.
ServletException
          A servlet exception.
ServletRequest
          ServletRequest encapsulates client request data.
ServletResponse
          ServletReponse control the output to the client.
 

Classes in javax.servlet used by com.caucho.hessian.test
GenericServlet
          GenericServlet is a convenient abstract class for defining Servlets.
Servlet
          A servlet is any Java class with a null-arg constructor that implements the Servlet API.
ServletConfig
          ServletConfig encapsulates servlet configuration and gives access to the application (servlet context) object.
 

Classes in javax.servlet used by com.caucho.http.log
ServletContext
          ServletContexts encapsulate applications.
ServletException
          A servlet exception.
 

Classes in javax.servlet used by com.caucho.j2ee.deployserver
GenericServlet
          GenericServlet is a convenient abstract class for defining Servlets.
Servlet
          A servlet is any Java class with a null-arg constructor that implements the Servlet API.
ServletConfig
          ServletConfig encapsulates servlet configuration and gives access to the application (servlet context) object.
ServletException
          A servlet exception.
ServletRequest
          ServletRequest encapsulates client request data.
ServletResponse
          ServletReponse control the output to the client.
 

Classes in javax.servlet used by com.caucho.jms.services
GenericServlet
          GenericServlet is a convenient abstract class for defining Servlets.
Servlet
          A servlet is any Java class with a null-arg constructor that implements the Servlet API.
ServletConfig
          ServletConfig encapsulates servlet configuration and gives access to the application (servlet context) object.
ServletException
          A servlet exception.
 

Classes in javax.servlet used by com.caucho.jsf.context
ServletContext
          ServletContexts encapsulate applications.
ServletOutputStream
          Servlets can use ServletOutputStream to write binary data to the response.
ServletResponse
          ServletReponse control the output to the client.
 

Classes in javax.servlet used by com.caucho.jsf.dev
GenericServlet
          GenericServlet is a convenient abstract class for defining Servlets.
Servlet
          A servlet is any Java class with a null-arg constructor that implements the Servlet API.
ServletConfig
          ServletConfig encapsulates servlet configuration and gives access to the application (servlet context) object.
ServletException
          A servlet exception.
ServletRequest
          ServletRequest encapsulates client request data.
ServletResponse
          ServletReponse control the output to the client.
 

Classes in javax.servlet used by com.caucho.jsf.webapp
GenericServlet
          GenericServlet is a convenient abstract class for defining Servlets.
Servlet
          A servlet is any Java class with a null-arg constructor that implements the Servlet API.
ServletConfig
          ServletConfig encapsulates servlet configuration and gives access to the application (servlet context) object.
ServletException
          A servlet exception.
ServletRequest
          ServletRequest encapsulates client request data.
ServletResponse
          ServletReponse control the output to the client.
 

Classes in javax.servlet used by com.caucho.jsp
Servlet
          A servlet is any Java class with a null-arg constructor that implements the Servlet API.
ServletConfig
          ServletConfig encapsulates servlet configuration and gives access to the application (servlet context) object.
ServletContext
          ServletContexts encapsulate applications.
ServletContextEvent
          The event class for changes to the servlet context.
ServletContextListener
          Interface for a listener receiving events when the ServletContext changes.
ServletException
          A servlet exception.
ServletRequest
          ServletRequest encapsulates client request data.
ServletResponse
          ServletReponse control the output to the client.
 

Classes in javax.servlet used by com.caucho.jsp.cfg
ServletException
          A servlet exception.
 

Classes in javax.servlet used by com.caucho.jsp.el
ServletContext
          ServletContexts encapsulate applications.
 

Classes in javax.servlet used by com.caucho.jsp.java
ServletException
          A servlet exception.
 

Classes in javax.servlet used by com.caucho.jsp.jsf
ServletRequest
          ServletRequest encapsulates client request data.
 

Classes in javax.servlet used by com.caucho.jws
GenericServlet
          GenericServlet is a convenient abstract class for defining Servlets.
Servlet
          A servlet is any Java class with a null-arg constructor that implements the Servlet API.
ServletConfig
          ServletConfig encapsulates servlet configuration and gives access to the application (servlet context) object.
ServletException
          A servlet exception.
 

Classes in javax.servlet used by com.caucho.portal.generic
GenericServlet
          GenericServlet is a convenient abstract class for defining Servlets.
RequestDispatcher
          The RequestDispatcher gives servlets the capabilities of SSI includes.
Servlet
          A servlet is any Java class with a null-arg constructor that implements the Servlet API.
ServletConfig
          ServletConfig encapsulates servlet configuration and gives access to the application (servlet context) object.
ServletContext
          ServletContexts encapsulate applications.
ServletException
          A servlet exception.
ServletInputStream
          Servlets generally read POSTed data with ServletInputStream.
ServletOutputStream
          Servlets can use ServletOutputStream to write binary data to the response.
ServletRequest
          ServletRequest encapsulates client request data.
ServletResponse
          ServletReponse control the output to the client.
 

Classes in javax.servlet used by com.caucho.protocols.flash
ServletRequest
          ServletRequest encapsulates client request data.
 

Classes in javax.servlet used by com.caucho.quercus
ServletContext
          ServletContexts encapsulate applications.
 

Classes in javax.servlet used by com.caucho.quercus.env
ServletContext
          ServletContexts encapsulate applications.
 

Classes in javax.servlet used by com.caucho.quercus.lib
ServletContext
          ServletContexts encapsulate applications.
 

Classes in javax.servlet used by com.caucho.quercus.servlet
GenericServlet
          GenericServlet is a convenient abstract class for defining Servlets.
Servlet
          A servlet is any Java class with a null-arg constructor that implements the Servlet API.
ServletConfig
          ServletConfig encapsulates servlet configuration and gives access to the application (servlet context) object.
ServletContext
          ServletContexts encapsulate applications.
ServletException
          A servlet exception.
 

Classes in javax.servlet used by com.caucho.remote.burlap
Servlet
          A servlet is any Java class with a null-arg constructor that implements the Servlet API.
 

Classes in javax.servlet used by com.caucho.remote.hessian
Servlet
          A servlet is any Java class with a null-arg constructor that implements the Servlet API.
 

Classes in javax.servlet used by com.caucho.remote.server
Servlet
          A servlet is any Java class with a null-arg constructor that implements the Servlet API.
 

Classes in javax.servlet used by com.caucho.resin.deploy
GenericServlet
          GenericServlet is a convenient abstract class for defining Servlets.
Servlet
          A servlet is any Java class with a null-arg constructor that implements the Servlet API.
ServletConfig
          ServletConfig encapsulates servlet configuration and gives access to the application (servlet context) object.
ServletException
          A servlet exception.
ServletRequest
          ServletRequest encapsulates client request data.
ServletResponse
          ServletReponse control the output to the client.
 

Classes in javax.servlet used by com.caucho.server.admin
GenericServlet
          GenericServlet is a convenient abstract class for defining Servlets.
Servlet
          A servlet is any Java class with a null-arg constructor that implements the Servlet API.
ServletConfig
          ServletConfig encapsulates servlet configuration and gives access to the application (servlet context) object.
ServletContext
          ServletContexts encapsulate applications.
ServletException
          A servlet exception.
ServletRequest
          ServletRequest encapsulates client request data.
ServletResponse
          ServletReponse control the output to the client.
 

Classes in javax.servlet used by com.caucho.server.cache
FilterChain
          Represents the next filter in a filter chain.
ServletException
          A servlet exception.
ServletRequest
          ServletRequest encapsulates client request data.
ServletResponse
          ServletReponse control the output to the client.
 

Classes in javax.servlet used by com.caucho.server.connection
RequestDispatcher
          The RequestDispatcher gives servlets the capabilities of SSI includes.
ServletContext
          ServletContexts encapsulate applications.
ServletException
          A servlet exception.
ServletInputStream
          Servlets generally read POSTed data with ServletInputStream.
ServletOutputStream
          Servlets can use ServletOutputStream to write binary data to the response.
ServletRequest
          ServletRequest encapsulates client request data.
ServletResponse
          ServletReponse control the output to the client.
 

Classes in javax.servlet used by com.caucho.server.dispatch
Filter
          Filters the request or response to a servlet.
FilterChain
          Represents the next filter in a filter chain.
FilterConfig
          Configuration for a filter.
RequestDispatcher
          The RequestDispatcher gives servlets the capabilities of SSI includes.
Servlet
          A servlet is any Java class with a null-arg constructor that implements the Servlet API.
ServletConfig
          ServletConfig encapsulates servlet configuration and gives access to the application (servlet context) object.
ServletContext
          ServletContexts encapsulate applications.
ServletException
          A servlet exception.
ServletRequest
          ServletRequest encapsulates client request data.
ServletResponse
          ServletReponse control the output to the client.
 

Classes in javax.servlet used by com.caucho.server.hmux
ServletRequest
          ServletRequest encapsulates client request data.
ServletResponse
          ServletReponse control the output to the client.
 

Classes in javax.servlet used by com.caucho.server.http
ServletRequest
          ServletRequest encapsulates client request data.
ServletResponse
          ServletReponse control the output to the client.
 

Classes in javax.servlet used by com.caucho.server.log
ServletContext
          ServletContexts encapsulate applications.
ServletException
          A servlet exception.
 

Classes in javax.servlet used by com.caucho.server.rewrite
FilterChain
          Represents the next filter in a filter chain.
ServletException
          A servlet exception.
ServletRequest
          ServletRequest encapsulates client request data.
ServletRequestWrapper
          Wraps a servlet request in another request.
ServletResponse
          ServletReponse control the output to the client.
 

Classes in javax.servlet used by com.caucho.server.security
Filter
          Filters the request or response to a servlet.
FilterChain
          Represents the next filter in a filter chain.
FilterConfig
          Configuration for a filter.
GenericServlet
          GenericServlet is a convenient abstract class for defining Servlets.
Servlet
          A servlet is any Java class with a null-arg constructor that implements the Servlet API.
ServletConfig
          ServletConfig encapsulates servlet configuration and gives access to the application (servlet context) object.
ServletContext
          ServletContexts encapsulate applications.
ServletException
          A servlet exception.
ServletRequest
          ServletRequest encapsulates client request data.
ServletResponse
          ServletReponse control the output to the client.
 

Classes in javax.servlet used by com.caucho.server.session
ServletContext
          ServletContexts encapsulate applications.
ServletException
          A servlet exception.
 

Classes in javax.servlet used by com.caucho.server.webapp
DispatcherType
           
Filter
          Filters the request or response to a servlet.
FilterChain
          Represents the next filter in a filter chain.
FilterConfig
          Configuration for a filter.
RequestDispatcher
          The RequestDispatcher gives servlets the capabilities of SSI includes.
Servlet
          A servlet is any Java class with a null-arg constructor that implements the Servlet API.
ServletContext
          ServletContexts encapsulate applications.
ServletContextAttributeListener
          Interface for a listener receiving events when any of the ServletContext attributes change.
ServletException
          A servlet exception.
ServletRequest
          ServletRequest encapsulates client request data.
ServletRequestAttributeListener
          Interface for a listener receiving events when any of the ServletRequest attributes change.
ServletRequestListener
          Interface for a listener receiving events when the ServletRequest changes.
ServletResponse
          ServletReponse control the output to the client.
SessionCookieConfig
          Configuration for cookie handling
SessionTrackingMode
          Tracking mode for sessions
 

Classes in javax.servlet used by com.caucho.services.server
ServletConfig
          ServletConfig encapsulates servlet configuration and gives access to the application (servlet context) object.
ServletContext
          ServletContexts encapsulate applications.
ServletException
          A servlet exception.
ServletRequest
          ServletRequest encapsulates client request data.
 

Classes in javax.servlet used by com.caucho.servlet.comet
Filter
          Filters the request or response to a servlet.
FilterChain
          Represents the next filter in a filter chain.
GenericServlet
          GenericServlet is a convenient abstract class for defining Servlets.
Servlet
          A servlet is any Java class with a null-arg constructor that implements the Servlet API.
ServletConfig
          ServletConfig encapsulates servlet configuration and gives access to the application (servlet context) object.
ServletException
          A servlet exception.
ServletRequest
          ServletRequest encapsulates client request data.
ServletResponse
          ServletReponse control the output to the client.
 

Classes in javax.servlet used by com.caucho.servlets
GenericServlet
          GenericServlet is a convenient abstract class for defining Servlets.
Servlet
          A servlet is any Java class with a null-arg constructor that implements the Servlet API.
ServletConfig
          ServletConfig encapsulates servlet configuration and gives access to the application (servlet context) object.
ServletException
          A servlet exception.
ServletRequest
          ServletRequest encapsulates client request data.
ServletResponse
          ServletReponse control the output to the client.
 

Classes in javax.servlet used by com.caucho.servlets.ssi
Filter
          Filters the request or response to a servlet.
FilterChain
          Represents the next filter in a filter chain.
FilterConfig
          Configuration for a filter.
GenericServlet
          GenericServlet is a convenient abstract class for defining Servlets.
Servlet
          A servlet is any Java class with a null-arg constructor that implements the Servlet API.
ServletConfig
          ServletConfig encapsulates servlet configuration and gives access to the application (servlet context) object.
ServletException
          A servlet exception.
ServletRequest
          ServletRequest encapsulates client request data.
ServletResponse
          ServletReponse control the output to the client.
 

Classes in javax.servlet used by com.caucho.servlets.webdav
GenericServlet
          GenericServlet is a convenient abstract class for defining Servlets.
Servlet
          A servlet is any Java class with a null-arg constructor that implements the Servlet API.
ServletConfig
          ServletConfig encapsulates servlet configuration and gives access to the application (servlet context) object.
ServletContext
          ServletContexts encapsulate applications.
ServletException
          A servlet exception.
ServletRequest
          ServletRequest encapsulates client request data.
ServletResponse
          ServletReponse control the output to the client.
 

Classes in javax.servlet used by com.caucho.tools.profiler
Filter
          Filters the request or response to a servlet.
FilterChain
          Represents the next filter in a filter chain.
FilterConfig
          Configuration for a filter.
GenericServlet
          GenericServlet is a convenient abstract class for defining Servlets.
Servlet
          A servlet is any Java class with a null-arg constructor that implements the Servlet API.
ServletConfig
          ServletConfig encapsulates servlet configuration and gives access to the application (servlet context) object.
ServletException
          A servlet exception.
ServletRequest
          ServletRequest encapsulates client request data.
ServletResponse
          ServletReponse control the output to the client.
 

Classes in javax.servlet used by com.caucho.vfs.remote
GenericServlet
          GenericServlet is a convenient abstract class for defining Servlets.
Servlet
          A servlet is any Java class with a null-arg constructor that implements the Servlet API.
ServletConfig
          ServletConfig encapsulates servlet configuration and gives access to the application (servlet context) object.
ServletException
          A servlet exception.
ServletRequest
          ServletRequest encapsulates client request data.
ServletResponse
          ServletReponse control the output to the client.
 

Classes in javax.servlet used by com.caucho.web.webmail
GenericServlet
          GenericServlet is a convenient abstract class for defining Servlets.
Servlet
          A servlet is any Java class with a null-arg constructor that implements the Servlet API.
ServletConfig
          ServletConfig encapsulates servlet configuration and gives access to the application (servlet context) object.
ServletException
          A servlet exception.
ServletRequest
          ServletRequest encapsulates client request data.
ServletResponse
          ServletReponse control the output to the client.
 

Classes in javax.servlet used by com.caucho.xtpdoc
GenericServlet
          GenericServlet is a convenient abstract class for defining Servlets.
Servlet
          A servlet is any Java class with a null-arg constructor that implements the Servlet API.
ServletConfig
          ServletConfig encapsulates servlet configuration and gives access to the application (servlet context) object.
ServletContext
          ServletContexts encapsulate applications.
ServletException
          A servlet exception.
 

Classes in javax.servlet used by javax.script.http
Servlet
          A servlet is any Java class with a null-arg constructor that implements the Servlet API.
ServletException
          A servlet exception.
ServletRequest
          ServletRequest encapsulates client request data.
ServletResponse
          ServletReponse control the output to the client.
 

Classes in javax.servlet used by javax.servlet
DispatcherType
           
FilterChain
          Represents the next filter in a filter chain.
FilterConfig
          Configuration for a filter.
RequestDispatcher
          The RequestDispatcher gives servlets the capabilities of SSI includes.
Servlet
          A servlet is any Java class with a null-arg constructor that implements the Servlet API.
ServletConfig
          ServletConfig encapsulates servlet configuration and gives access to the application (servlet context) object.
ServletContext
          ServletContexts encapsulate applications.
ServletContextAttributeEvent
          The event class for changes to servlet context attributes.
ServletContextEvent
          The event class for changes to the servlet context.
ServletException
          A servlet exception.
ServletInputStream
          Servlets generally read POSTed data with ServletInputStream.
ServletOutputStream
          Servlets can use ServletOutputStream to write binary data to the response.
ServletRequest
          ServletRequest encapsulates client request data.
ServletRequestAttributeEvent
          The event class for changes to servlet request attributes.
ServletRequestEvent
          The event class for changes to the servlet context.
ServletResponse
          ServletReponse control the output to the client.
SessionCookieConfig
          Configuration for cookie handling
SessionTrackingMode
          Tracking mode for sessions
 

Classes in javax.servlet used by javax.servlet.http
GenericServlet
          GenericServlet is a convenient abstract class for defining Servlets.
Servlet
          A servlet is any Java class with a null-arg constructor that implements the Servlet API.
ServletConfig
          ServletConfig encapsulates servlet configuration and gives access to the application (servlet context) object.
ServletContext
          ServletContexts encapsulate applications.
ServletException
          A servlet exception.
ServletInputStream
          Servlets generally read POSTed data with ServletInputStream.
ServletRequest
          ServletRequest encapsulates client request data.
ServletRequestWrapper
          Wraps a servlet request in another request.
ServletResponse
          ServletReponse control the output to the client.
ServletResponseWrapper
          Wraps a servlet response in another response.
 

Classes in javax.servlet used by javax.servlet.http.annotation
DispatcherType
           
 

Classes in javax.servlet used by javax.servlet.jsp
Servlet
          A servlet is any Java class with a null-arg constructor that implements the Servlet API.
ServletConfig
          ServletConfig encapsulates servlet configuration and gives access to the application (servlet context) object.
ServletContext
          ServletContexts encapsulate applications.
ServletException
          A servlet exception.
ServletRequest
          ServletRequest encapsulates client request data.
ServletResponse
          ServletReponse control the output to the client.
 

Classes in javax.servlet used by javax.servlet.jsp.jstl.core
ServletContext
          ServletContexts encapsulate applications.
ServletRequest
          ServletRequest encapsulates client request data.