# Package org.apache.catalina.ha.session

package org.apache.catalina.ha.session

- Related Packages
  Package
  Description
  org.apache.catalina.ha
  This package contains code for Clustering, the base class of a Cluster is `org.apache.catalina.Cluster` implementations of this class is done when implementing a new Cluster protocol
  org.apache.catalina.ha.authenticator
  org.apache.catalina.ha.backend
  org.apache.catalina.ha.context
  org.apache.catalina.ha.deploy
  org.apache.catalina.ha.tcp
- Class
  Description
  BackupManager
  ClusterManagerBase
  ClusterSessionListener
  Receive replicated SessionMessage form other cluster node.
  DeltaManager
  The DeltaManager manages replicated sessions by only replicating the deltas in data.
  DeltaRequest
  This class is used to track the series of actions that happens when a request is executed.
  DeltaSession
  Similar to the StandardSession except that this session will keep track of deltas during a request.
  JvmRouteBinderValve
  Valve to handle Tomcat jvmRoute takeover using mod_jk module after node failure.
  ReplicatedSessionListener
  This is a marker interface used to indicate an implementation of `SessionListener` that should be replicated with the session across the cluster.
  SessionMessage
  The SessionMessage interface is used when a session has been created, modified, expired in a Tomcat cluster node.
  SessionMessageImpl
  Session cluster message.