File	Doc	Category	Size	Date	Package
Valve.java	API Doc	Apache Tomcat 6.0.14	5865	Fri Jul 20 04:20:36 BST 2007	org.apache.catalina

Valve

Fields Summary

Constructors Summary

Methods Summary
public void	backgroundProcess() Execute a periodic task, such as reloading, etc. This method will be invoked inside the classloading context of this container. Unexpected throwables will be caught and logged.
public void	event(org.apache.catalina.connector.Request request, org.apache.catalina.connector.Response response, CometEvent event) Process a Comet event. param request The servlet request to be processed param response The servlet response to be created exception IOException if an input/output error occurs, or is thrown by a subsequently invoked Valve, Filter, or Servlet exception ServletException if a servlet error occurs, or is thrown by a subsequently invoked Valve, Filter, or Servlet
public java.lang.String	getInfo() Return descriptive information about this Valve implementation.
public org.apache.catalina.Valve	getNext() Return the next Valve in the pipeline containing this Valve, if any.
public void	invoke(org.apache.catalina.connector.Request request, org.apache.catalina.connector.Response response) Perform request processing as required by this Valve. An individual Valve MAY perform the following actions, in the specified order: Examine and/or modify the properties of the specified Request and Response. Examine the properties of the specified Request, completely generate the corresponding Response, and return control to the caller. Examine the properties of the specified Request and Response, wrap either or both of these objects to supplement their functionality, and pass them on. If the corresponding Response was not generated (and control was not returned, call the next Valve in the pipeline (if there is one) by executing context.invokeNext(). Examine, but not modify, the properties of the resulting Response (which was created by a subsequently invoked Valve or Container). A Valve MUST NOT do any of the following things: Change request properties that have already been used to direct the flow of processing control for this request (for instance, trying to change the virtual host to which a Request should be sent from a pipeline attached to a Host or Context in the standard implementation). Create a completed Response AND pass this Request and Response on to the next Valve in the pipeline. Consume bytes from the input stream associated with the Request, unless it is completely generating the response, or wrapping the request before passing it on. Modify the HTTP headers included with the Response after the invokeNext() method has returned. Perform any actions on the output stream associated with the specified Response after the invokeNext() method has returned. param request The servlet request to be processed param response The servlet response to be created exception IOException if an input/output error occurs, or is thrown by a subsequently invoked Valve, Filter, or Servlet exception ServletException if a servlet error occurs, or is thrown by a subsequently invoked Valve, Filter, or Servlet
public void	setNext(org.apache.catalina.Valve valve) Set the next Valve in the pipeline containing this Valve. param valve The new next valve, or null if none