com.caucho.jsp
Class JavaScriptPageServlet

java.lang.Object
  |
  +--com.caucho.jsp.JavaScriptPageServlet

All Implemented Interfaces:

Servlet

public class JavaScriptPageServlet

extends java.lang.Object

implements Servlet

JavaScriptPageServlet allows the JavaScript engine to use the public get methods as global variables.

Method Summary

java.lang.Object	_cauchoCreateBean(java.lang.String beanName) Creates a new bean.
void	destroy() Called by the servlet container to indicate to a servlet that the servlet is being taken out of service.
ServletContext	getApplication()
ServletConfig	getConfig()
java.lang.Exception	getException()
JspWriter	getOut()
Servlet	getPage()
PageContext	getPageContext()
ServletRequest	getRequest()
ServletResponse	getResponse()
ServletConfig	getServletConfig() Returns a ServletConfig object, which contains initialization and startup parameters for this servlet.
ServletContext	getServletContext()
java.lang.String	getServletInfo() Returns information about the servlet, such as author, version, and copyright.
HttpSession	getSession()
void	init(ServletConfig config) Called by the servlet container to indicate to a servlet that the servlet is being placed into service.
void	service(ServletRequest req, ServletResponse res) Called by the servlet container to allow the servlet to respond to a request.

Methods inherited from class java.lang.Object

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

Method Detail

init

public void init(ServletConfig config)

Description copied from interface: Servlet

Called by the servlet container to indicate to a servlet that the servlet is being placed into service.

The servlet container calls the init method exactly once after instantiating the servlet. The init method must complete successfully before the servlet can receive any requests.

The servlet container cannot place the servlet into service if the init method

1. Throws a ServletException
2. Does not return within a time period defined by the Web server

Specified by:

init in interface Servlet

Following copied from interface: javax.servlet.Servlet

Parameters:

config - a ServletConfig object containing the servlet's configuration and initialization parameters

Throws:

ServletException - if an exception has occurred that interferes with the servlet's normal operation

See Also:

UnavailableException, Servlet.getServletConfig()

_cauchoCreateBean

public java.lang.Object _cauchoCreateBean(java.lang.String beanName)
                                   throws java.lang.Exception

Creates a new bean.

getServletInfo

public java.lang.String getServletInfo()

Description copied from interface: Servlet

Returns information about the servlet, such as author, version, and copyright.

The string that this method returns should be plain text and not markup of any kind (such as HTML, XML, etc.).

Specified by:

getServletInfo in interface Servlet

Following copied from interface: javax.servlet.Servlet

Returns:

a String containing servlet information

getPageContext

public PageContext getPageContext()

getPage

public Servlet getPage()

getServletConfig

public ServletConfig getServletConfig()

Description copied from interface: Servlet

Returns a ServletConfig object, which contains initialization and startup parameters for this servlet. The ServletConfig object returned is the one passed to the init method.

Implementations of this interface are responsible for storing the ServletConfig object so that this method can return it. The GenericServlet class, which implements this interface, already does this.

Specified by:

getServletConfig in interface Servlet

Following copied from interface: javax.servlet.Servlet

Returns:

the ServletConfig object that initializes this servlet

See Also:

Servlet.init(javax.servlet.ServletConfig)

getConfig

public ServletConfig getConfig()

getApplication

public ServletContext getApplication()

getServletContext

public ServletContext getServletContext()

getRequest

public ServletRequest getRequest()

getResponse

public ServletResponse getResponse()

getSession

public HttpSession getSession()

getException

public java.lang.Exception getException()

getOut

public JspWriter getOut()

service

public void service(ServletRequest req,
                    ServletResponse res)
             throws ServletException,
                    java.io.IOException

Description copied from interface: Servlet

Called by the servlet container to allow the servlet to respond to a request.

This method is only called after the servlet's init() method has completed successfully.

The status code of the response always should be set for a servlet that throws or sends an error.

Servlets typically run inside multithreaded servlet containers that can handle multiple requests concurrently. Developers must be aware to synchronize access to any shared resources such as files, network connections, and as well as the servlet's class and instance variables. More information on multithreaded programming in Java is available in the Java tutorial on multi-threaded programming.

Specified by:

service in interface Servlet

Following copied from interface: javax.servlet.Servlet

Parameters:

req - the ServletRequest object that contains the client's request

res - the ServletResponse object that contains the servlet's response

Throws:

ServletException - if an exception occurs that interferes with the servlet's normal operation

java.io.IOException - if an input or output exception occurs

destroy

public void destroy()

Description copied from interface: Servlet

Called by the servlet container to indicate to a servlet that the servlet is being taken out of service. This method is only called once all threads within the servlet's service method have exited or after a timeout period has passed. After the servlet container calls this method, it will not call the service method again on this servlet.

This method gives the servlet an opportunity to clean up any resources that are being held (for example, memory, file handles, threads) and make sure that any persistent state is synchronized with the servlet's current state in memory.

Specified by:

destroy in interface Servlet