PersistentValve (Apache Tomcat 6.0.53 API Documentation)

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Apache Tomcat 6.0.53

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org.apache.catalina.valves
Class PersistentValve

java.lang.Object
  org.apache.catalina.valves.ValveBase
      org.apache.catalina.valves.PersistentValve

All Implemented Interfaces:: javax.management.MBeanRegistration, Contained, Valve

public class PersistentValve
extends ValveBase
extends ValveBase

Valve that implements per-request session persistence. It is intended to be used with non-sticky load-balancers.

USAGE CONSTRAINT: To work correctly it requires a PersistentManager.

USAGE CONSTRAINT: To work correctly it assumes only one request exists per session at any one time.

Author:: Jean-Frederic Clere

Field Summary

Fields inherited from class org.apache.catalina.valves.ValveBase
`container, containerLog, controller, domain, mserver, next, oname`

Constructor Summary
`PersistentValve()`

Method Summary
`java.lang.String`	`getInfo()` Return descriptive information about this Valve implementation.
`void`	`invoke(Request request, Response response)` Select the appropriate child Context to process this request, based on the specified request URI.
`protected boolean`	`isSessionStale(Session session, long timeNow)` Indicate whether the session has been idle for longer than its expiration date as of the supplied time.
`void`	`setContainer(Container container)` Set the Container with which this Valve is associated, if any.

Methods inherited from class org.apache.catalina.valves.ValveBase
`backgroundProcess, createObjectName, event, getContainer, getContainerName, getController, getDomain, getNext, getObjectName, getParentName, postDeregister, postRegister, preDeregister, preRegister, setController, setNext, setObjectName, toString`

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait`

Constructor Detail

PersistentValve

public PersistentValve()

Method Detail

getInfo

public java.lang.String getInfo()

Return descriptive information about this Valve implementation.

Specified by:: getInfo in interface Valve
Overrides:: getInfo in class ValveBase

setContainer

public void setContainer(Container container)

Description copied from class: ValveBase

Set the Container with which this Valve is associated, if any.

Specified by:: setContainer in interface Contained
Overrides:: setContainer in class ValveBase

Parameters:: container - The new associated container

invoke

public void invoke(Request request,
                   Response response)
            throws java.io.IOException,
                   javax.servlet.ServletException

Select the appropriate child Context to process this request, based on the specified request URI. If no matching Context can be found, return an appropriate HTTP error.

Specified by:: invoke in interface Valve
Specified by:: invoke in class ValveBase

Parameters:: request - Request to be processed; response - Response to be produced
Throws:: java.io.IOException - if an input/output error occurred; javax.servlet.ServletException - if a servlet error occurred

isSessionStale

protected boolean isSessionStale(Session session,
                                 long timeNow)

Indicate whether the session has been idle for longer than its expiration date as of the supplied time. FIXME: Probably belongs in the Session class.