/* * Licensed to the Apache Software Foundation (ASF) under one or more * contributor license agreements. See the NOTICE file distributed with * this work for additional information regarding copyright ownership. * The ASF licenses this file to You under the Apache License, Version 2.0 * (the "License"); you may not use this file except in compliance with * the License. You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package javax.servlet; import java.io.InputStream; import java.net.MalformedURLException; import java.net.URL; import java.util.Enumeration; import java.util.EventListener; import java.util.Map; import java.util.Set; import javax.servlet.descriptor.JspConfigDescriptor; /** * Defines a set of methods that a servlet uses to communicate with its servlet * container, for example, to get the MIME type of a file, dispatch requests, or * write to a log file. * <p> * There is one context per "web application" per Java Virtual Machine. (A * "web application" is a collection of servlets and content installed under a * specific subset of the server's URL namespace such as <code>/catalog</code> * and possibly installed via a <code>.war</code> file.) * <p> * In the case of a web application marked "distributed" in its deployment * descriptor, there will be one context instance for each virtual machine. In * this situation, the context cannot be used as a location to share global * information (because the information won't be truly global). Use an external * resource like a database instead. * <p> * The <code>ServletContext</code> object is contained within the * {@link ServletConfig} object, which the Web server provides the servlet when * the servlet is initialized. * * @author Various * @see Servlet#getServletConfig * @see ServletConfig#getServletContext */ public interface ServletContext { public static final String TEMPDIR = "javax.servlet.context.tempdir"; /** * @since Servlet 3.0 */ public static final String ORDERED_LIBS = "javax.servlet.context.orderedLibs"; /** * Returns a <code>ServletContext</code> object that corresponds to a * specified URL on the server. * <p> * This method allows servlets to gain access to the context for various * parts of the server, and as needed obtain {@link 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. * <p> * In a security conscious environment, the servlet container may return * <code>null</code> for a given URL. * * @param uripath * a <code>String</code> specifying the context path of another * web application in the container. * @return the <code>ServletContext</code> object that corresponds to the * named URL, or null if either none exists or the container wishes * to restrict this access. * @see RequestDispatcher */ public ServletContext getContext(String uripath); public String getContextPath(); /** * Returns the major version of the Java Servlet API that this servlet * container supports. All implementations that comply with Version 3.0 must * have this method return the integer 3. * * @return 3 */ public int getMajorVersion(); /** * Returns the minor version of the Servlet API that this servlet container * supports. All implementations that comply with Version 3.0 must have this * method return the integer 0. * * @return 0 */ public int getMinorVersion(); /** * @return TODO * @throws UnsupportedOperationException If called from a * {@link ServletContextListener#contextInitialized(ServletContextEvent)} * method of a {@link ServletContextListener} that was not defined in a * web.xml file, a web-fragment.xml file nor annotated with * {@link javax.servlet.annotation.WebListener}. For example, a * {@link ServletContextListener} defined in a TLD would not be able to * use this method. * * @since Servlet 3.0 TODO SERVLET3 - Add comments */ public int getEffectiveMajorVersion(); /** * @return TODO * @throws UnsupportedOperationException If called from a * {@link ServletContextListener#contextInitialized(ServletContextEvent)} * method of a {@link ServletContextListener} that was not defined in a * web.xml file, a web-fragment.xml file nor annotated with * {@link javax.servlet.annotation.WebListener}. For example, a * {@link ServletContextListener} defined in a TLD would not be able to * use this method. * @since Servlet 3.0 TODO SERVLET3 - Add comments */ public int getEffectiveMinorVersion(); /** * Returns the MIME type of the specified file, or <code>null</code> 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 <code>"text/html"</code> and * <code>"image/gif"</code>. * * @param file * a <code>String</code> specifying the name of a file * @return a <code>String</code> specifying the file's MIME type */ public String getMimeType(String file); /** * 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<br> * <br> * /welcome.html<br> * /catalog/index.html<br> * /catalog/products.html<br> * /catalog/offers/books.html<br> * /catalog/offers/music.html<br> * /customer/login.jsp<br> * /WEB-INF/web.xml<br> * /WEB-INF/classes/com.acme.OrderServlet.class,<br> * <br> * getResourcePaths("/") returns {"/welcome.html", "/catalog/", * "/customer/", "/WEB-INF/"}<br> * getResourcePaths("/catalog/") returns {"/catalog/index.html", * "/catalog/products.html", "/catalog/offers/"}.<br> * * @param path * the partial path used to match the resources, which must start * with a / * @return 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 */ public Set<String> getResourcePaths(String path); /** * 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. * <p> * 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 <code>.war</code> file. * <p> * The servlet container must implement the URL handlers and * <code>URLConnection</code> objects that are necessary to access the * resource. * <p> * This method returns <code>null</code> if no resource is mapped to the * pathname. * <p> * Some containers may allow writing to the URL returned by this method * using the methods of the URL class. * <p> * The resource content is returned directly, so be aware that requesting a * <code>.jsp</code> page returns the JSP source code. Use a * <code>RequestDispatcher</code> instead to include results of an * execution. * <p> * This method has a different purpose than * <code>java.lang.Class.getResource</code>, which looks up resources based * on a class loader. This method does not use class loaders. * * @param path * a <code>String</code> specifying the path to the resource * @return the resource located at the named path, or <code>null</code> if * there is no resource at that path * @exception MalformedURLException * if the pathname is not given in the correct form */ public URL getResource(String path) throws MalformedURLException; /** * Returns the resource located at the named path as an * <code>InputStream</code> object. * <p> * The data in the <code>InputStream</code> can be of any type or length. * The path must be specified according to the rules given in * <code>getResource</code>. This method returns <code>null</code> if no * resource exists at the specified path. * <p> * Meta-information such as content length and content type that is * available via <code>getResource</code> method is lost when using this * method. * <p> * The servlet container must implement the URL handlers and * <code>URLConnection</code> objects necessary to access the resource. * <p> * This method is different from * <code>java.lang.Class.getResourceAsStream</code>, 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. * * @param path * a <code>String</code> specifying the path to the resource * @return the <code>InputStream</code> returned to the servlet, or * <code>null</code> if no resource exists at the specified path */ public InputStream getResourceAsStream(String path); /** * Returns a {@link RequestDispatcher} object that acts as a wrapper for the * resource located at the given path. A <code>RequestDispatcher</code> * 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. * <p> * The pathname must begin with a "/" and is interpreted as relative to the * current context root. Use <code>getContext</code> to obtain a * <code>RequestDispatcher</code> for resources in foreign contexts. This * method returns <code>null</code> if the <code>ServletContext</code> * cannot return a <code>RequestDispatcher</code>. * * @param path * a <code>String</code> specifying the pathname to the resource * @return a <code>RequestDispatcher</code> object that acts as a wrapper for * the resource at the specified path, or <code>null</code> if the * <code>ServletContext</code> cannot return a * <code>RequestDispatcher</code> * @see RequestDispatcher * @see ServletContext#getContext */ public RequestDispatcher getRequestDispatcher(String path); /** * Returns a {@link RequestDispatcher} object that acts as a wrapper for the * named servlet. * <p> * 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 * {@link ServletConfig#getServletName}. * <p> * This method returns <code>null</code> if the <code>ServletContext</code> * cannot return a <code>RequestDispatcher</code> for any reason. * * @param name * a <code>String</code> specifying the name of a servlet to wrap * @return a <code>RequestDispatcher</code> object that acts as a wrapper for * the named servlet, or <code>null</code> if the * <code>ServletContext</code> cannot return a * <code>RequestDispatcher</code> * @see RequestDispatcher * @see ServletContext#getContext * @see ServletConfig#getServletName */ public RequestDispatcher getNamedDispatcher(String name); /** * @deprecated As of Java Servlet API 2.1, with no direct replacement. * <p> * This method was originally defined to retrieve a servlet from * a <code>ServletContext</code>. In this version, this method * always returns <code>null</code> and remains only to preserve * binary compatibility. This method will be permanently removed * in a future version of the Java Servlet API. * <p> * In lieu of this method, servlets can share information using * the <code>ServletContext</code> class and can perform shared * business logic by invoking methods on common non-servlet * classes. */ @SuppressWarnings("dep-ann") // Spec API does not use @Deprecated public Servlet getServlet(String name) throws ServletException; /** * @deprecated As of Java Servlet API 2.0, with no replacement. * <p> * This method was originally defined to return an * <code>Enumeration</code> 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. */ @SuppressWarnings("dep-ann") // Spec API does not use @Deprecated public Enumeration<Servlet> getServlets(); /** * @deprecated As of Java Servlet API 2.1, with no replacement. * <p> * This method was originally defined to return an * <code>Enumeration</code> of all the servlet names known to * this context. In this version, this method always returns an * empty <code>Enumeration</code> and remains only to preserve * binary compatibility. This method will be permanently removed * in a future version of the Java Servlet API. */ @SuppressWarnings("dep-ann") // Spec API does not use @Deprecated public Enumeration<String> getServletNames(); /** * 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. * * @param msg * a <code>String</code> specifying the message to be written to * the log file */ public void log(String msg); /** * @deprecated As of Java Servlet API 2.1, use * {@link #log(String message, Throwable throwable)} instead. * <p> * This method was originally defined to write an exception's * stack trace and an explanatory error message to the servlet * log file. */ @SuppressWarnings("dep-ann") // Spec API does not use @Deprecated public void log(Exception exception, String msg); /** * Writes an explanatory message and a stack trace for a given * <code>Throwable</code> 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. * * @param message * a <code>String</code> that describes the error or exception * @param throwable * the <code>Throwable</code> error or exception */ public void log(String message, Throwable throwable); /** * Returns a <code>String</code> 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.. * <p> * 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 <code>null</code> 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 * <code>.war</code> archive). * * @param path * a <code>String</code> specifying a virtual path * @return a <code>String</code> specifying the real path, or null if the * translation cannot be performed */ public String getRealPath(String path); /** * Returns the name and version of the servlet container on which the * servlet is running. * <p> * The form of the returned string is * <i>servername</i>/<i>versionnumber</i>. For example, the JavaServer Web * Development Kit may return the string * <code>JavaServer Web Dev Kit/1.0</code>. * <p> * The servlet container may return other optional information after the * primary string in parentheses, for example, * <code>JavaServer Web Dev Kit/1.0 (JDK 1.1.6; Windows NT 4.0 x86)</code>. * * @return a <code>String</code> containing at least the servlet container * name and version number */ public String getServerInfo(); /** * Returns a <code>String</code> containing the value of the named * context-wide initialization parameter, or <code>null</code> if the * parameter does not exist. * <p> * 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. * * @param name * a <code>String</code> containing the name of the parameter * whose value is requested * @return a <code>String</code> containing the value of the initialization * parameter * @see ServletConfig#getInitParameter */ public String getInitParameter(String name); /** * Returns the names of the context's initialization parameters as an * <code>Enumeration</code> of <code>String</code> objects, or an empty * <code>Enumeration</code> if the context has no initialization parameters. * * @return an <code>Enumeration</code> of <code>String</code> objects * containing the names of the context's initialization parameters * @see ServletConfig#getInitParameter */ public Enumeration<String> getInitParameterNames(); /** * @param name * @param value * @return TODO * @throws IllegalStateException * @throws UnsupportedOperationException If called from a * {@link ServletContextListener#contextInitialized(ServletContextEvent)} * method of a {@link ServletContextListener} that was not defined in a * web.xml file, a web-fragment.xml file nor annotated with * {@link javax.servlet.annotation.WebListener}. For example, a * {@link ServletContextListener} defined in a TLD would not be able to * use this method. * @since Servlet 3.0 TODO SERVLET3 - Add comments */ public boolean setInitParameter(String name, String value); /** * Returns the servlet container attribute with the given name, or * <code>null</code> 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 <code>getAttributeNames</code>. * <p> * The attribute is returned as a <code>java.lang.Object</code> or some * subclass. Attribute names should follow the same convention as package * names. The Java Servlet API specification reserves names matching * <code>java.*</code>, <code>javax.*</code>, and <code>sun.*</code>. * * @param name * a <code>String</code> specifying the name of the attribute * @return an <code>Object</code> containing the value of the attribute, or * <code>null</code> if no attribute exists matching the given name * @see ServletContext#getAttributeNames */ public Object getAttribute(String name); /** * Returns an <code>Enumeration</code> containing the attribute names * available within this servlet context. Use the {@link #getAttribute} * method with an attribute name to get the value of an attribute. * * @return an <code>Enumeration</code> of attribute names * @see #getAttribute */ public Enumeration<String> getAttributeNames(); /** * 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. * <p> * If listeners are configured on the <code>ServletContext</code> the * container notifies them accordingly. * <p> * If a null value is passed, the effect is the same as calling * <code>removeAttribute()</code>. * <p> * Attribute names should follow the same convention as package names. The * Java Servlet API specification reserves names matching * <code>java.*</code>, <code>javax.*</code>, and <code>sun.*</code>. * * @param name * a <code>String</code> specifying the name of the attribute * @param object * an <code>Object</code> representing the attribute to be bound */ public void setAttribute(String name, Object object); /** * Removes the attribute with the given name from the servlet context. After * removal, subsequent calls to {@link #getAttribute} to retrieve the * attribute's value will return <code>null</code>. * <p> * If listeners are configured on the <code>ServletContext</code> the * container notifies them accordingly. * * @param name * a <code>String</code> specifying the name of the attribute to * be removed */ public void removeAttribute(String name); /** * 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. * * @return The name of the web application or null if no name has been * declared in the deployment descriptor. * @since Servlet 2.3 */ public String getServletContextName(); /** * @param servletName * @param className * @return TODO * @throws IllegalStateException * If the context has already been initialised * @throws UnsupportedOperationException If called from a * {@link ServletContextListener#contextInitialized(ServletContextEvent)} * method of a {@link ServletContextListener} that was not defined in a * web.xml file, a web-fragment.xml file nor annotated with * {@link javax.servlet.annotation.WebListener}. For example, a * {@link ServletContextListener} defined in a TLD would not be able to * use this method. * @since Servlet 3.0 TODO SERVLET3 - Add comments */ public ServletRegistration.Dynamic addServlet(String servletName, String className); /** * @param servletName * @param servlet * @return TODO * @throws IllegalStateException * If the context has already been initialised * @throws UnsupportedOperationException If called from a * {@link ServletContextListener#contextInitialized(ServletContextEvent)} * method of a {@link ServletContextListener} that was not defined in a * web.xml file, a web-fragment.xml file nor annotated with * {@link javax.servlet.annotation.WebListener}. For example, a * {@link ServletContextListener} defined in a TLD would not be able to * use this method. * @since Servlet 3.0 TODO SERVLET3 - Add comments */ public ServletRegistration.Dynamic addServlet(String servletName, Servlet servlet); /** * @param servletName * @param servletClass * @return TODO * @throws IllegalStateException * If the context has already been initialised * @throws UnsupportedOperationException If called from a * {@link ServletContextListener#contextInitialized(ServletContextEvent)} * method of a {@link ServletContextListener} that was not defined in a * web.xml file, a web-fragment.xml file nor annotated with * {@link javax.servlet.annotation.WebListener}. For example, a * {@link ServletContextListener} defined in a TLD would not be able to * use this method. * @since Servlet 3.0 TODO SERVLET3 - Add comments */ public ServletRegistration.Dynamic addServlet(String servletName, Class<? extends Servlet> servletClass); /** * @param c * @return TODO * @throws ServletException * @throws UnsupportedOperationException If called from a * {@link ServletContextListener#contextInitialized(ServletContextEvent)} * method of a {@link ServletContextListener} that was not defined in a * web.xml file, a web-fragment.xml file nor annotated with * {@link javax.servlet.annotation.WebListener}. For example, a * {@link ServletContextListener} defined in a TLD would not be able to * use this method. * @since Servlet 3.0 TODO SERVLET3 - Add comments */ public <T extends Servlet> T createServlet(Class<T> c) throws ServletException; /** * Obtain the details of the named servlet. * * @param servletName The name of the Servlet of interest * * @return The registration details for the named Servlet or * <code>null</code> if no Servlet has been registered with the * given name * * @throws UnsupportedOperationException If called from a * {@link ServletContextListener#contextInitialized(ServletContextEvent)} * method of a {@link ServletContextListener} that was not defined in a * web.xml file, a web-fragment.xml file nor annotated with * {@link javax.servlet.annotation.WebListener}. For example, a * {@link ServletContextListener} defined in a TLD would not be able to * use this method. * * @since Servlet 3.0 */ public ServletRegistration getServletRegistration(String servletName); /** * @return TODO * @throws UnsupportedOperationException If called from a * {@link ServletContextListener#contextInitialized(ServletContextEvent)} * method of a {@link ServletContextListener} that was not defined in a * web.xml file, a web-fragment.xml file nor annotated with * {@link javax.servlet.annotation.WebListener}. For example, a * {@link ServletContextListener} defined in a TLD would not be able to * use this method. * @since Servlet 3.0 TODO SERVLET3 - Add comments */ public Map<String, ? extends ServletRegistration> getServletRegistrations(); /** * @param filterName * @param className * @return TODO * @throws UnsupportedOperationException If called from a * {@link ServletContextListener#contextInitialized(ServletContextEvent)} * method of a {@link ServletContextListener} that was not defined in a * web.xml file, a web-fragment.xml file nor annotated with * {@link javax.servlet.annotation.WebListener}. For example, a * {@link ServletContextListener} defined in a TLD would not be able to * use this method. * @throws IllegalStateException * If the context has already been initialised * @since Servlet 3.0 TODO SERVLET3 - Add comments */ public FilterRegistration.Dynamic addFilter(String filterName, String className); /** * @param filterName * @param filter * @return TODO * @throws UnsupportedOperationException If called from a * {@link ServletContextListener#contextInitialized(ServletContextEvent)} * method of a {@link ServletContextListener} that was not defined in a * web.xml file, a web-fragment.xml file nor annotated with * {@link javax.servlet.annotation.WebListener}. For example, a * {@link ServletContextListener} defined in a TLD would not be able to * use this method. * @throws IllegalStateException * If the context has already been initialised * @since Servlet 3.0 TODO SERVLET3 - Add comments */ public FilterRegistration.Dynamic addFilter(String filterName, Filter filter); /** * @param filterName * @param filterClass * @return TODO * @throws UnsupportedOperationException If called from a * {@link ServletContextListener#contextInitialized(ServletContextEvent)} * method of a {@link ServletContextListener} that was not defined in a * web.xml file, a web-fragment.xml file nor annotated with * {@link javax.servlet.annotation.WebListener}. For example, a * {@link ServletContextListener} defined in a TLD would not be able to * use this method. * @throws IllegalStateException * If the context has already been initialised * @since Servlet 3.0 TODO SERVLET3 - Add comments */ public FilterRegistration.Dynamic addFilter(String filterName, Class<? extends Filter> filterClass); /** * @param c * @return TODO * @throws UnsupportedOperationException If called from a * {@link ServletContextListener#contextInitialized(ServletContextEvent)} * method of a {@link ServletContextListener} that was not defined in a * web.xml file, a web-fragment.xml file nor annotated with * {@link javax.servlet.annotation.WebListener}. For example, a * {@link ServletContextListener} defined in a TLD would not be able to * use this method. * @throws ServletException * @since Servlet 3.0 TODO SERVLET3 - Add comments */ public <T extends Filter> T createFilter(Class<T> c) throws ServletException; /** * @param filterName * @return TODO * @throws UnsupportedOperationException If called from a * {@link ServletContextListener#contextInitialized(ServletContextEvent)} * method of a {@link ServletContextListener} that was not defined in a * web.xml file, a web-fragment.xml file nor annotated with * {@link javax.servlet.annotation.WebListener}. For example, a * {@link ServletContextListener} defined in a TLD would not be able to * use this method. * @since Servlet 3.0 TODO SERVLET3 - Add comments */ public FilterRegistration getFilterRegistration(String filterName); /** * @return TODO * @throws UnsupportedOperationException If called from a * {@link ServletContextListener#contextInitialized(ServletContextEvent)} * method of a {@link ServletContextListener} that was not defined in a * web.xml file, a web-fragment.xml file nor annotated with * {@link javax.servlet.annotation.WebListener}. For example, a * {@link ServletContextListener} defined in a TLD would not be able to * use this method. * @since Servlet 3.0 TODO SERVLET3 - Add comments */ public Map<String, ? extends FilterRegistration> getFilterRegistrations(); /** * @return TODO * @throws UnsupportedOperationException If called from a * {@link ServletContextListener#contextInitialized(ServletContextEvent)} * method of a {@link ServletContextListener} that was not defined in a * web.xml file, a web-fragment.xml file nor annotated with * {@link javax.servlet.annotation.WebListener}. For example, a * {@link ServletContextListener} defined in a TLD would not be able to * use this method. * @since Servlet 3.0 TODO SERVLET3 - Add comments */ public SessionCookieConfig getSessionCookieConfig(); /** * @param sessionTrackingModes * @throws IllegalArgumentException * If sessionTrackingModes specifies * {@link SessionTrackingMode#SSL} in combination with any other * {@link SessionTrackingMode} * @throws IllegalStateException * If the context has already been initialised * @throws UnsupportedOperationException If called from a * {@link ServletContextListener#contextInitialized(ServletContextEvent)} * method of a {@link ServletContextListener} that was not defined in a * web.xml file, a web-fragment.xml file nor annotated with * {@link javax.servlet.annotation.WebListener}. For example, a * {@link ServletContextListener} defined in a TLD would not be able to * use this method. * @since Servlet 3.0 TODO SERVLET3 - Add comments */ public void setSessionTrackingModes( Set<SessionTrackingMode> sessionTrackingModes) throws IllegalStateException, IllegalArgumentException; /** * @return TODO * @throws UnsupportedOperationException If called from a * {@link ServletContextListener#contextInitialized(ServletContextEvent)} * method of a {@link ServletContextListener} that was not defined in a * web.xml file, a web-fragment.xml file nor annotated with * {@link javax.servlet.annotation.WebListener}. For example, a * {@link ServletContextListener} defined in a TLD would not be able to * use this method. * @since Servlet 3.0 TODO SERVLET3 - Add comments */ public Set<SessionTrackingMode> getDefaultSessionTrackingModes(); /** * @return TODO * @throws UnsupportedOperationException If called from a * {@link ServletContextListener#contextInitialized(ServletContextEvent)} * method of a {@link ServletContextListener} that was not defined in a * web.xml file, a web-fragment.xml file nor annotated with * {@link javax.servlet.annotation.WebListener}. For example, a * {@link ServletContextListener} defined in a TLD would not be able to * use this method. * @since Servlet 3.0 TODO SERVLET3 - Add comments */ public Set<SessionTrackingMode> getEffectiveSessionTrackingModes(); /** * @param className * @throws UnsupportedOperationException If called from a * {@link ServletContextListener#contextInitialized(ServletContextEvent)} * method of a {@link ServletContextListener} that was not defined in a * web.xml file, a web-fragment.xml file nor annotated with * {@link javax.servlet.annotation.WebListener}. For example, a * {@link ServletContextListener} defined in a TLD would not be able to * use this method. * @since Servlet 3.0 TODO SERVLET3 - Add comments */ public void addListener(String className); /** * @param <T> * @param t * @throws UnsupportedOperationException If called from a * {@link ServletContextListener#contextInitialized(ServletContextEvent)} * method of a {@link ServletContextListener} that was not defined in a * web.xml file, a web-fragment.xml file nor annotated with * {@link javax.servlet.annotation.WebListener}. For example, a * {@link ServletContextListener} defined in a TLD would not be able to * use this method. * @since Servlet 3.0 TODO SERVLET3 - Add comments */ public <T extends EventListener> void addListener(T t); /** * @param listenerClass * @throws UnsupportedOperationException If called from a * {@link ServletContextListener#contextInitialized(ServletContextEvent)} * method of a {@link ServletContextListener} that was not defined in a * web.xml file, a web-fragment.xml file nor annotated with * {@link javax.servlet.annotation.WebListener}. For example, a * {@link ServletContextListener} defined in a TLD would not be able to * use this method. * @since Servlet 3.0 TODO SERVLET3 - Add comments */ public void addListener(Class<? extends EventListener> listenerClass); /** * @param <T> * @param c * @return TODO * @throws ServletException * @throws UnsupportedOperationException If called from a * {@link ServletContextListener#contextInitialized(ServletContextEvent)} * method of a {@link ServletContextListener} that was not defined in a * web.xml file, a web-fragment.xml file nor annotated with * {@link javax.servlet.annotation.WebListener}. For example, a * {@link ServletContextListener} defined in a TLD would not be able to * use this method. * @since Servlet 3.0 TODO SERVLET3 - Add comments */ public <T extends EventListener> T createListener(Class<T> c) throws ServletException; /** * @param roleNames * @throws UnsupportedOperationException If called from a * {@link ServletContextListener#contextInitialized(ServletContextEvent)} * method of a {@link ServletContextListener} that was not defined in a * web.xml file, a web-fragment.xml file nor annotated with * {@link javax.servlet.annotation.WebListener}. For example, a * {@link ServletContextListener} defined in a TLD would not be able to * use this method. * @throws IllegalArgumentException * @throws IllegalStateException * @since Servlet 3.0 TODO SERVLET3 - Add comments */ public void declareRoles(String... roleNames); /** * @return TODO * @throws UnsupportedOperationException If called from a * {@link ServletContextListener#contextInitialized(ServletContextEvent)} * method of a {@link ServletContextListener} that was not defined in a * web.xml file, a web-fragment.xml file nor annotated with * {@link javax.servlet.annotation.WebListener}. For example, a * {@link ServletContextListener} defined in a TLD would not be able to * use this method. * @throws SecurityException * @since Servlet 3.0 TODO SERVLET3 - Add comments */ public ClassLoader getClassLoader(); /** * @return TODO * @throws UnsupportedOperationException If called from a * {@link ServletContextListener#contextInitialized(ServletContextEvent)} * method of a {@link ServletContextListener} that was not defined in a * web.xml file, a web-fragment.xml file nor annotated with * {@link javax.servlet.annotation.WebListener}. For example, a * {@link ServletContextListener} defined in a TLD would not be able to * use this method. * @since Servlet 3.0 TODO SERVLET3 - Add comments */ public JspConfigDescriptor getJspConfigDescriptor(); }