Field Detail

• TEMPDIR

  static final java.lang.String TEMPDIR

  See Also:

  Constant Field Values

• ORDERED_LIBS

  static final java.lang.String ORDERED_LIBS

  Since:

  Servlet 3.0

  See Also:

  Constant Field Values

Method Detail

• getContextPath

  java.lang.String getContextPath()

• getContext

  ServletContext getContext(java.lang.String uripath)

  Returns a ServletContext object that corresponds to a specified URL on the server.

  This method allows servlets to gain access to the context for various parts of the server, and as needed obtain RequestDispatcher objects from the context. The given path must be begin with "/", is interpreted relative to the server's document root and is matched against the context roots of other web applications hosted on this container.

  In a security conscious environment, the servlet container may return null for a given URL.

  Parameters:

  uripath - a String specifying the context path of another web application in the container.

  Returns:

  the ServletContext object that corresponds to the named URL, or null if either none exists or the container wishes to restrict this access.

  See Also:

  RequestDispatcher

• getMajorVersion

  int getMajorVersion()

  Returns the major version of the Java Servlet API that this servlet container supports. All implementations that comply with Version 3.1 must have this method return the integer 3.

  Returns:

  3

• getMinorVersion

  int getMinorVersion()

  Returns the minor version of the Servlet API that this servlet container supports. All implementations that comply with Version 3.1 must have this method return the integer 1.

  Returns:

  1

• getEffectiveMajorVersion

  int getEffectiveMajorVersion()

  Returns:

  TODO

  Throws:

  java.lang.UnsupportedOperationException - If called from a ServletContextListener.contextInitialized(ServletContextEvent) method of a ServletContextListener that was not defined in a web.xml file, a web-fragment.xml file nor annotated with WebListener. For example, a ServletContextListener defined in a TLD would not be able to use this method.

  Since:

  Servlet 3.0 TODO SERVLET3 - Add comments

• getEffectiveMinorVersion

  int getEffectiveMinorVersion()

  Returns:

  TODO

  Throws:

  java.lang.UnsupportedOperationException - If called from a ServletContextListener.contextInitialized(ServletContextEvent) method of a ServletContextListener that was not defined in a web.xml file, a web-fragment.xml file nor annotated with WebListener. For example, a ServletContextListener defined in a TLD would not be able to use this method.

  Since:

  Servlet 3.0 TODO SERVLET3 - Add comments

• getMimeType

  java.lang.String getMimeType(java.lang.String file)

  Returns the MIME type of the specified file, or null if the MIME type is not known. The MIME type is determined by the configuration of the servlet container, and may be specified in a web application deployment descriptor. Common MIME types are "text/html" and "image/gif".

  Parameters:

  file - a String specifying the name of a file

  Returns:

  a String specifying the file's MIME type

• getResourcePaths

  java.util.Set<java.lang.String> getResourcePaths(java.lang.String path)

  Returns a directory-like listing of all the paths to resources within the web application whose longest sub-path matches the supplied path argument. Paths indicating subdirectory paths end with a '/'. The returned paths are all relative to the root of the web application and have a leading '/'. For example, for a web application containing
  
  /welcome.html
  /catalog/index.html
  /catalog/products.html
  /catalog/offers/books.html
  /catalog/offers/music.html
  /customer/login.jsp
  /WEB-INF/web.xml
  /WEB-INF/classes/com.acme.OrderServlet.class,
  
  getResourcePaths("/") returns {"/welcome.html", "/catalog/", "/customer/", "/WEB-INF/"}
  getResourcePaths("/catalog/") returns {"/catalog/index.html", "/catalog/products.html", "/catalog/offers/"}.
  

  Parameters:

  path - the partial path used to match the resources, which must start with a /

  Returns:

  a Set containing the directory listing, or null if there are no resources in the web application whose path begins with the supplied path.

  Since:

  Servlet 2.3

• getResource

  java.net.URL getResource(java.lang.String path)
                           throws java.net.MalformedURLException

  Returns a URL to the resource that is mapped to a specified path. The path must begin with a "/" and is interpreted as relative to the current context root.

  This method allows the servlet container to make a resource available to servlets from any source. Resources can be located on a local or remote file system, in a database, or in a .war file.

  The servlet container must implement the URL handlers and URLConnection objects that are necessary to access the resource.

  This method returns null if no resource is mapped to the pathname.

  Some containers may allow writing to the URL returned by this method using the methods of the URL class.

  The resource content is returned directly, so be aware that requesting a .jsp page returns the JSP source code. Use a RequestDispatcher instead to include results of an execution.

  This method has a different purpose than java.lang.Class.getResource, which looks up resources based on a class loader. This method does not use class loaders.

  Parameters:

  path - a String specifying the path to the resource

  Returns:

  the resource located at the named path, or null if there is no resource at that path

  Throws:

  java.net.MalformedURLException - if the pathname is not given in the correct form

• getResourceAsStream

  java.io.InputStream getResourceAsStream(java.lang.String path)

  Returns the resource located at the named path as an InputStream object.

  The data in the InputStream can be of any type or length. The path must be specified according to the rules given in getResource. This method returns null if no resource exists at the specified path.

  Meta-information such as content length and content type that is available via getResource method is lost when using this method.

  The servlet container must implement the URL handlers and URLConnection objects necessary to access the resource.

  This method is different from java.lang.Class.getResourceAsStream, which uses a class loader. This method allows servlet containers to make a resource available to a servlet from any location, without using a class loader.

  Parameters:

  path - a String specifying the path to the resource

  Returns:

  the InputStream returned to the servlet, or null if no resource exists at the specified path

• getRequestDispatcher

  RequestDispatcher getRequestDispatcher(java.lang.String path)

  Returns a RequestDispatcher object that acts as a wrapper for the resource located at the given path. A RequestDispatcher object can be used to forward a request to the resource or to include the resource in a response. The resource can be dynamic or static.

  The pathname must begin with a "/" and is interpreted as relative to the current context root. Use getContext to obtain a RequestDispatcher for resources in foreign contexts. This method returns null if the ServletContext cannot return a RequestDispatcher.

  Parameters:

  path - a String specifying the pathname to the resource

  Returns:

  a RequestDispatcher object that acts as a wrapper for the resource at the specified path, or null if the ServletContext cannot return a RequestDispatcher

  See Also:

  RequestDispatcher, getContext(java.lang.String)

• getNamedDispatcher

  RequestDispatcher getNamedDispatcher(java.lang.String name)

  Returns a RequestDispatcher object that acts as a wrapper for the named servlet.

  Servlets (and JSP pages also) may be given names via server administration or via a web application deployment descriptor. A servlet instance can determine its name using ServletConfig.getServletName().

  This method returns null if the ServletContext cannot return a RequestDispatcher for any reason.

  Parameters:

  name - a String specifying the name of a servlet to wrap

  Returns:

  a RequestDispatcher object that acts as a wrapper for the named servlet, or null if the ServletContext cannot return a RequestDispatcher

  See Also:

  RequestDispatcher, getContext(java.lang.String), ServletConfig.getServletName()

• getServlet

  Servlet getServlet(java.lang.String name)
                     throws ServletException

  Deprecated. As of Java Servlet API 2.1, with no direct replacement.
  Do not use. This method was originally defined to retrieve a servlet from a ServletContext. In this version, this method always returns null and remains only to preserve binary compatibility. This method will be permanently removed in a future version of the Java Servlet API.

  In lieu of this method, servlets can share information using the ServletContext class and can perform shared business logic by invoking methods on common non-servlet classes.

  Parameters:

  name - Not used

  Returns:

  Always null

  Throws:

  ServletException - never

• getServlets

  java.util.Enumeration<Servlet> getServlets()

  Deprecated. As of Java Servlet API 2.0, with no replacement.
  Do not use. This method was originally defined to return an Enumeration of all the servlets known to this servlet context. In this version, this method always returns an empty enumeration and remains only to preserve binary compatibility. This method will be permanently removed in a future version of the Java Servlet API.

  Returns:

  Always and empty Enumeration

• getServletNames

  java.util.Enumeration<java.lang.String> getServletNames()

  Deprecated. As of Java Servlet API 2.1, with no replacement.
  Do not use. This method was originally defined to return an Enumeration of all the servlet names known to this context. In this version, this method always returns an empty Enumeration and remains only to preserve binary compatibility. This method will be permanently removed in a future version of the Java Servlet API.

  Returns:

  Always and empty Enumeration

• log

  void log(java.lang.String msg)

  Writes the specified message to a servlet log file, usually an event log. The name and type of the servlet log file is specific to the servlet container.

  Parameters:

  msg - a String specifying the message to be written to the log file

• log

  void log(java.lang.Exception exception,
         java.lang.String msg)

  Deprecated. As of Java Servlet API 2.1, use log(String message, Throwable throwable) instead.

  This method was originally defined to write an exception's stack trace and an explanatory error message to the servlet log file.

  Do not use.

  Parameters:

  exception - The exception to log

  msg - The message to log with the exception

• log

  void log(java.lang.String message,
         java.lang.Throwable throwable)

  Writes an explanatory message and a stack trace for a given Throwable exception to the servlet log file. The name and type of the servlet log file is specific to the servlet container, usually an event log.

  Parameters:

  message - a String that describes the error or exception

  throwable - the Throwable error or exception

• getRealPath

  java.lang.String getRealPath(java.lang.String path)

  Returns a String containing the real path for a given virtual path. For example, the path "/index.html" returns the absolute file path on the server's filesystem would be served by a request for "http://host/contextPath/index.html", where contextPath is the context path of this ServletContext..

  The real path returned will be in a form appropriate to the computer and operating system on which the servlet container is running, including the proper path separators. This method returns null if the servlet container cannot translate the virtual path to a real path for any reason (such as when the content is being made available from a .war archive).

  Parameters:

  path - a String specifying a virtual path

  Returns:

  a String specifying the real path, or null if the translation cannot be performed

• getServerInfo

  java.lang.String getServerInfo()

  Returns the name and version of the servlet container on which the servlet is running.

  The form of the returned string is servername/versionnumber. For example, the JavaServer Web Development Kit may return the string JavaServer Web Dev Kit/1.0.

  The servlet container may return other optional information after the primary string in parentheses, for example, JavaServer Web Dev Kit/1.0 (JDK 1.1.6; Windows NT 4.0 x86).

  Returns:

  a String containing at least the servlet container name and version number

• getInitParameter

  java.lang.String getInitParameter(java.lang.String name)

  Returns a String containing the value of the named context-wide initialization parameter, or null if the parameter does not exist.

  This method can make available configuration information useful to an entire "web application". For example, it can provide a webmaster's email address or the name of a system that holds critical data.

  Parameters:

  name - a String containing the name of the parameter whose value is requested

  Returns:

  a String containing the value of the initialization parameter

  See Also:

  ServletConfig.getInitParameter(java.lang.String)

• getInitParameterNames

  java.util.Enumeration<java.lang.String> getInitParameterNames()

  Returns the names of the context's initialization parameters as an Enumeration of String objects, or an empty Enumeration if the context has no initialization parameters.

  Returns:

  an Enumeration of String objects containing the names of the context's initialization parameters

  See Also:

  ServletConfig.getInitParameter(java.lang.String)

• setInitParameter

  boolean setInitParameter(java.lang.String name,
                         java.lang.String value)

  Set the given initialisation parameter to the given value.

  Parameters:

  name - Name of initialisation parameter

  value - Value for initialisation parameter

  Returns:

  true if the call succeeds or false if the call fails because an initialisation parameter with the same name has already been set

  Throws:

  java.lang.IllegalStateException - If initialisation of this ServletContext has already completed

  java.lang.UnsupportedOperationException - If called from a ServletContextListener.contextInitialized(ServletContextEvent) method of a ServletContextListener that was not defined in a web.xml file, a web-fragment.xml file nor annotated with WebListener. For example, a ServletContextListener defined in a TLD would not be able to use this method.

  Since:

  Servlet 3.0

• getAttribute

  java.lang.Object getAttribute(java.lang.String name)

  Returns the servlet container attribute with the given name, or null if there is no attribute by that name. An attribute allows a servlet container to give the servlet additional information not already provided by this interface. See your server documentation for information about its attributes. A list of supported attributes can be retrieved using getAttributeNames.

  The attribute is returned as a java.lang.Object or some subclass. Attribute names should follow the same convention as package names. The Java Servlet API specification reserves names matching java.*, javax.*, and sun.*.

  Parameters:

  name - a String specifying the name of the attribute

  Returns:

  an Object containing the value of the attribute, or null if no attribute exists matching the given name

  See Also:

  getAttributeNames()

• getAttributeNames

  java.util.Enumeration<java.lang.String> getAttributeNames()

  Returns an Enumeration containing the attribute names available within this servlet context. Use the getAttribute(java.lang.String) method with an attribute name to get the value of an attribute.

  Returns:

  an Enumeration of attribute names

  See Also:

  getAttribute(java.lang.String)

• setAttribute

  void setAttribute(java.lang.String name,
                  java.lang.Object object)

  Binds an object to a given attribute name in this servlet context. If the name specified is already used for an attribute, this method will replace the attribute with the new to the new attribute.

  If listeners are configured on the ServletContext the container notifies them accordingly.

  If a null value is passed, the effect is the same as calling removeAttribute().

  Attribute names should follow the same convention as package names. The Java Servlet API specification reserves names matching java.*, javax.*, and sun.*.

  Parameters:

  name - a String specifying the name of the attribute

  object - an Object representing the attribute to be bound

• removeAttribute

  void removeAttribute(java.lang.String name)

  Removes the attribute with the given name from the servlet context. After removal, subsequent calls to getAttribute(java.lang.String) to retrieve the attribute's value will return null.

  If listeners are configured on the ServletContext the container notifies them accordingly.

  Parameters:

  name - a String specifying the name of the attribute to be removed

• getServletContextName

  java.lang.String getServletContextName()

  Returns the name of this web application corresponding to this ServletContext as specified in the deployment descriptor for this web application by the display-name element.

  Returns:

  The name of the web application or null if no name has been declared in the deployment descriptor.

  Since:

  Servlet 2.3

• addServlet

  ServletRegistration.Dynamic addServlet(java.lang.String servletName,
                                       java.lang.String className)

  Register a servlet implementation for use in this ServletContext.

  Parameters:

  servletName - The name of the servlet to register

  className - The implementation class for the servlet

  Returns:

  The registration object that enables further configuration

  Throws:

  java.lang.IllegalStateException - If the context has already been initialised

  java.lang.UnsupportedOperationException - If called from a ServletContextListener.contextInitialized(ServletContextEvent) method of a ServletContextListener that was not defined in a web.xml file, a web-fragment.xml file nor annotated with WebListener. For example, a ServletContextListener defined in a TLD would not be able to use this method.

  Since:

  Servlet 3.0

• addServlet

  ServletRegistration.Dynamic addServlet(java.lang.String servletName,
                                       Servlet servlet)

  Register a servlet instance for use in this ServletContext.

  Parameters:

  servletName - The name of the servlet to register

  servlet - The Servlet instance to register

  Returns:

  The registration object that enables further configuration

  Throws:

  java.lang.IllegalStateException - If the context has already been initialised

  java.lang.UnsupportedOperationException - If called from a ServletContextListener.contextInitialized(ServletContextEvent) method of a ServletContextListener that was not defined in a web.xml file, a web-fragment.xml file nor annotated with WebListener. For example, a ServletContextListener defined in a TLD would not be able to use this method.

  Since:

  Servlet 3.0

• addServlet

  ServletRegistration.Dynamic addServlet(java.lang.String servletName,
                                       java.lang.Class<? extends Servlet> servletClass)

  TODO SERVLET3 - Add comments

  Parameters:

  servletName - TODO

  servletClass - TODO

  Returns:

  TODO

  Throws:

  java.lang.IllegalStateException - If the context has already been initialised

  java.lang.UnsupportedOperationException - If called from a ServletContextListener.contextInitialized(ServletContextEvent) method of a ServletContextListener that was not defined in a web.xml file, a web-fragment.xml file nor annotated with WebListener. For example, a ServletContextListener defined in a TLD would not be able to use this method.

  Since:

  Servlet 3.0

• createServlet

  <T extends Servlet> T createServlet(java.lang.Class<T> c)
                                  throws ServletException

  TODO SERVLET3 - Add comments

  Type Parameters:

  T - TODO

  Parameters:

  c - TODO

  Returns:

  TODO

  Throws:

  ServletException - TODO

  java.lang.UnsupportedOperationException - If called from a ServletContextListener.contextInitialized(ServletContextEvent) method of a ServletContextListener that was not defined in a web.xml file, a web-fragment.xml file nor annotated with WebListener. For example, a ServletContextListener defined in a TLD would not be able to use this method.

  Since:

  Servlet 3.0

• getServletRegistration

  ServletRegistration getServletRegistration(java.lang.String servletName)

  Obtain the details of the named servlet.

  Parameters:

  servletName - The name of the Servlet of interest

  Returns:

  The registration details for the named Servlet or null if no Servlet has been registered with the given name

  Throws:

  java.lang.UnsupportedOperationException - If called from a ServletContextListener.contextInitialized(ServletContextEvent) method of a ServletContextListener that was not defined in a web.xml file, a web-fragment.xml file nor annotated with WebListener. For example, a ServletContextListener defined in a TLD would not be able to use this method.

  Since:

  Servlet 3.0

• getServletRegistrations

  java.util.Map<java.lang.String,? extends ServletRegistration> getServletRegistrations()

  TODO SERVLET3 - Add comments

  Returns:

  TODO

  Throws:

  java.lang.UnsupportedOperationException - If called from a ServletContextListener.contextInitialized(ServletContextEvent) method of a ServletContextListener that was not defined in a web.xml file, a web-fragment.xml file nor annotated with WebListener. For example, a ServletContextListener defined in a TLD would not be able to use this method.

  Since:

  Servlet 3.0

• addFilter

  FilterRegistration.Dynamic addFilter(java.lang.String filterName,
                                     java.lang.String className)

  TODO SERVLET3 - Add comments

  Parameters:

  filterName - TODO

  className - TODO

  Returns:

  TODO

  Throws:

  java.lang.UnsupportedOperationException - If called from a ServletContextListener.contextInitialized(ServletContextEvent) method of a ServletContextListener that was not defined in a web.xml file, a web-fragment.xml file nor annotated with WebListener. For example, a ServletContextListener defined in a TLD would not be able to use this method.

  java.lang.IllegalStateException - If the context has already been initialised

  Since:

  Servlet 3.0

• addFilter

  FilterRegistration.Dynamic addFilter(java.lang.String filterName,
                                     Filter filter)

  TODO SERVLET3 - Add comments

  Parameters:

  filterName - TODO

  filter - TODO

  Returns:

  TODO

  Throws:

  java.lang.UnsupportedOperationException - If called from a ServletContextListener.contextInitialized(ServletContextEvent) method of a ServletContextListener that was not defined in a web.xml file, a web-fragment.xml file nor annotated with WebListener. For example, a ServletContextListener defined in a TLD would not be able to use this method.

  java.lang.IllegalStateException - If the context has already been initialised

  Since:

  Servlet 3.0

• addFilter

  FilterRegistration.Dynamic addFilter(java.lang.String filterName,
                                     java.lang.Class<? extends Filter> filterClass)

  TODO SERVLET3 - Add comments

  Parameters:

  filterName - TODO

  filterClass - TODO

  Returns:

  TODO

  Throws:

  java.lang.UnsupportedOperationException - If called from a ServletContextListener.contextInitialized(ServletContextEvent) method of a ServletContextListener that was not defined in a web.xml file, a web-fragment.xml file nor annotated with WebListener. For example, a ServletContextListener defined in a TLD would not be able to use this method.

  java.lang.IllegalStateException - If the context has already been initialised

  Since:

  Servlet 3.0

• createFilter

  <T extends Filter> T createFilter(java.lang.Class<T> c)
                                throws ServletException

  TODO SERVLET3 - Add comments

  Type Parameters:

  T - TODO

  Parameters:

  c - TODO

  Returns:

  TODO

  Throws:

  java.lang.UnsupportedOperationException - If called from a ServletContextListener.contextInitialized(ServletContextEvent) method of a ServletContextListener that was not defined in a web.xml file, a web-fragment.xml file nor annotated with WebListener. For example, a ServletContextListener defined in a TLD would not be able to use this method.

  ServletException - TODO

  Since:

  Servlet 3.

• getFilterRegistration

  FilterRegistration getFilterRegistration(java.lang.String filterName)

  TODO SERVLET3 - Add comments

  Parameters:

  filterName - TODO

  Returns:

  TODO

  Throws:

  java.lang.UnsupportedOperationException - If called from a ServletContextListener.contextInitialized(ServletContextEvent) method of a ServletContextListener that was not defined in a web.xml file, a web-fragment.xml file nor annotated with WebListener. For example, a ServletContextListener defined in a TLD would not be able to use this method.

  Since:

  Servlet 3.0

• getFilterRegistrations

  java.util.Map<java.lang.String,? extends FilterRegistration> getFilterRegistrations()

  Returns:

  TODO

  Throws:

  java.lang.UnsupportedOperationException - If called from a ServletContextListener.contextInitialized(ServletContextEvent) method of a ServletContextListener that was not defined in a web.xml file, a web-fragment.xml file nor annotated with WebListener. For example, a ServletContextListener defined in a TLD would not be able to use this method.

  Since:

  Servlet 3.0 TODO SERVLET3 - Add comments

• getSessionCookieConfig

  SessionCookieConfig getSessionCookieConfig()

  Returns:

  TODO

  Throws:

  java.lang.UnsupportedOperationException - If called from a ServletContextListener.contextInitialized(ServletContextEvent) method of a ServletContextListener that was not defined in a web.xml file, a web-fragment.xml file nor annotated with WebListener. For example, a ServletContextListener defined in a TLD would not be able to use this method.

  Since:

  Servlet 3.0 TODO SERVLET3 - Add comments

• setSessionTrackingModes

  void setSessionTrackingModes(java.util.Set<SessionTrackingMode> sessionTrackingModes)

  TODO SERVLET3 - Add comments

  Parameters:

  sessionTrackingModes - TODO

  Throws:

  java.lang.IllegalArgumentException - If sessionTrackingModes specifies SessionTrackingMode.SSL in combination with any other SessionTrackingMode

  java.lang.IllegalStateException - If the context has already been initialised

  java.lang.UnsupportedOperationException - If called from a ServletContextListener.contextInitialized(ServletContextEvent) method of a ServletContextListener that was not defined in a web.xml file, a web-fragment.xml file nor annotated with WebListener. For example, a ServletContextListener defined in a TLD would not be able to use this method.

  Since:

  Servlet 3.0

• getDefaultSessionTrackingModes

  java.util.Set<SessionTrackingMode> getDefaultSessionTrackingModes()

  TODO SERVLET3 - Add comments

  Returns:

  TODO

  Throws:

  java.lang.UnsupportedOperationException - If called from a ServletContextListener.contextInitialized(ServletContextEvent) method of a ServletContextListener that was not defined in a web.xml file, a web-fragment.xml file nor annotated with WebListener. For example, a ServletContextListener defined in a TLD would not be able to use this method.

  Since:

  Servlet 3.0

• getEffectiveSessionTrackingModes

  java.util.Set<SessionTrackingMode> getEffectiveSessionTrackingModes()

  TODO SERVLET3 - Add comments

  Returns:

  TODO

  Throws:

  java.lang.UnsupportedOperationException - If called from a ServletContextListener.contextInitialized(ServletContextEvent) method of a ServletContextListener that was not defined in a web.xml file, a web-fragment.xml file nor annotated with WebListener. For example, a ServletContextListener defined in a TLD would not be able to use this method.

  Since:

  Servlet 3.0

• addListener

  void addListener(java.lang.String className)

  TODO SERVLET3 - Add comments

  Parameters:

  className - TODO

  Throws:

  java.lang.UnsupportedOperationException - If called from a ServletContextListener.contextInitialized(ServletContextEvent) method of a ServletContextListener that was not defined in a web.xml file, a web-fragment.xml file nor annotated with WebListener. For example, a ServletContextListener defined in a TLD would not be able to use this method.

  Since:

  Servlet 3.0

• addListener

  <T extends java.util.EventListener> void addListener(T t)

  TODO SERVLET3 - Add comments

  Type Parameters:

  T - TODO

  Parameters:

  t - TODO

  Throws:

  java.lang.UnsupportedOperationException - If called from a ServletContextListener.contextInitialized(ServletContextEvent) method of a ServletContextListener that was not defined in a web.xml file, a web-fragment.xml file nor annotated with WebListener. For example, a ServletContextListener defined in a TLD would not be able to use this method.

  Since:

  Servlet 3.0

• addListener

  void addListener(java.lang.Class<? extends java.util.EventListener> listenerClass)

  TODO SERVLET3 - Add comments

  Parameters:

  listenerClass - TODO

  Throws:

  java.lang.UnsupportedOperationException - If called from a ServletContextListener.contextInitialized(ServletContextEvent) method of a ServletContextListener that was not defined in a web.xml file, a web-fragment.xml file nor annotated with WebListener. For example, a ServletContextListener defined in a TLD would not be able to use this method.

  Since:

  Servlet 3.0

• createListener

  <T extends java.util.EventListener> T createListener(java.lang.Class<T> c)
                                                   throws ServletException

  TODO SERVLET3 - Add comments

  Type Parameters:

  T - TODO

  Parameters:

  c - TODO

  Returns:

  TODO

  Throws:

  ServletException - TODO

  java.lang.UnsupportedOperationException - If called from a ServletContextListener.contextInitialized(ServletContextEvent) method of a ServletContextListener that was not defined in a web.xml file, a web-fragment.xml file nor annotated with WebListener. For example, a ServletContextListener defined in a TLD would not be able to use this method.

  Since:

  Servlet 3.0

• getJspConfigDescriptor

  JspConfigDescriptor getJspConfigDescriptor()

  Returns:

  TODO

  Throws:

  java.lang.UnsupportedOperationException - If called from a ServletContextListener.contextInitialized(ServletContextEvent) method of a ServletContextListener that was not defined in a web.xml file, a web-fragment.xml file nor annotated with WebListener. For example, a ServletContextListener defined in a TLD would not be able to use this method.

  Since:

  Servlet 3.0 TODO SERVLET3 - Add comments

• getClassLoader

  java.lang.ClassLoader getClassLoader()

  Get the web application class loader associated with this ServletContext.

  Returns:

  The associated web application class loader

  Throws:

  java.lang.UnsupportedOperationException - If called from a ServletContextListener.contextInitialized(ServletContextEvent) method of a ServletContextListener that was not defined in a web.xml file, a web-fragment.xml file nor annotated with WebListener. For example, a ServletContextListener defined in a TLD would not be able to use this method.

  java.lang.SecurityException - if access to the class loader is prevented by a SecurityManager

  Since:

  Servlet 3.0

• declareRoles

  void declareRoles(java.lang.String... roleNames)

  Add to the declared roles for this ServletContext.

  Parameters:

  roleNames - The roles to add

  Throws:

  java.lang.UnsupportedOperationException - If called from a ServletContextListener.contextInitialized(ServletContextEvent) method of a ServletContextListener that was not defined in a web.xml file, a web-fragment.xml file nor annotated with WebListener. For example, a ServletContextListener defined in a TLD would not be able to use this method.

  java.lang.IllegalArgumentException - If the list of roleNames is null or empty

  java.lang.IllegalStateException - If the ServletContext has already been initialised

  Since:

  Servlet 3.0

• getVirtualServerName

  java.lang.String getVirtualServerName()

  Get the primary name of the virtual host on which this context is deployed. The name may or may not be a valid host name.

  Returns:

  The primary name of the virtual host on which this context is deployed