public LRUStatefulContextCachePolicy(AbstractInstanceCache eic) 
{
      super(eic);
      ssiCache = (StatefulSessionInstanceCache) eic;
}

Creates a LRU cache policy object given the instance cache that use this policy object.

 public  void importXml(Element element) throws DeploymentException 
{
      super.importXml(element);
      String rp = MetaData.getElementContent(MetaData.getOptionalChild(element, "remover-period"));
      String ml = MetaData.getElementContent(MetaData.getOptionalChild(element, "max-bean-life"));
      try
      {
         if (rp != null)
         {
            int p = Integer.parseInt(rp);
            if (p < = 0)
            {
               throw new DeploymentException("Remover period can't be < = 0");
            }
            m_removerPeriod = p * 1000;
         }
         if (ml != null)
         {
            int a = Integer.parseInt(ml);
            if (a < = 0)
            {
               throw new DeploymentException("Max bean life can't be < = 0");
            }
            m_maxBeanLife = a * 1000;
         }
      }
      catch (NumberFormatException x)
      {
         throw new DeploymentException("Can't parse policy configuration", x);
      }
}

Reads from the configuration the parameters for this cache policy, that are all optionals.

 public  void start() 
{
      super.start();
      if (m_maxBeanLife  > 0)
      {
         m_remover = new RemoverTask(m_removerPeriod);
         long delay = (long) (Math.random() * m_removerPeriod);
         tasksTimer.schedule(m_remover, delay, m_removerPeriod);
      }
}

 public  void stop() 
{
      if (m_remover != null)
      {
         m_remover.cancel();
      }
      super.stop();
}