Package org.apache.catalina.filters
Class SessionInitializerFilter
- java.lang.Object
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- org.apache.catalina.filters.SessionInitializerFilter
 
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- All Implemented Interfaces:
- Filter
 
 public class SessionInitializerFilter extends java.lang.Object implements Filter AFilterthat initializes theHttpSessionfor theHttpServletRequestby calling its getSession() method.This is required for some operations with WebSocket requests, where it is too late to initialize the HttpSession object, and the current Java WebSocket specification does not provide a way to do so. 
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Constructor SummaryConstructors Constructor Description SessionInitializerFilter()
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Method SummaryAll Methods Instance Methods Concrete Methods Modifier and Type Method Description voiddoFilter(ServletRequest request, ServletResponse response, FilterChain chain)CallsHttpServletRequest's getSession() to initialize the HttpSession and continues processing the chain.
 
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Method Detail- 
doFilterpublic void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws java.io.IOException, ServletException CallsHttpServletRequest's getSession() to initialize the HttpSession and continues processing the chain.- Specified by:
- doFilterin interface- Filter
- Parameters:
- request- The request to process
- response- The response associated with the request
- chain- Provides access to the next filter in the chain for this filter to pass the request and response to for further processing
- Throws:
- java.io.IOException- if an I/O error occurs during this filter's processing of the request
- ServletException- if the processing fails for any other reason
 
 
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