Examples of SharedLocalYieldingClusterLockManager

org.jboss.as.clustering.lock.SharedLocalYieldingClusterLockManager

Distributed lock manager intended for use cases where multiple local threads can share the lock, but only one node in the cluster can have threads using the lock. Nodes holding the lock yield it to remote requestors if no local threads are using it; otherwise remote requestors block.

The expected use case for this class is controlling access to resources that are typically only accessed on a single node (e.g. web sessions or stateful session beans), with the distributed lock used primarily to guarantee that.

@author Brian Stansberry

org.jboss.ha.framework.server.lock.SharedLocalYieldingClusterLockManager

@author Brian Stansberry @version $Revision:$


   @Override
   public <T extends OutgoingDistributableSessionData> org.jboss.web.tomcat.service.session.distributedcache.spi.DistributedCacheManager<T> getDistributedCacheManager(LocalDistributableSessionManager manager)
   {
      Cache<String, Map<Object, Object>> sessionCache = this.sessionCacheSource.getCache(manager);
      SharedLocalYieldingClusterLockManager lockManager = this.lockManagerSource.getLockManager(sessionCache);
      TransactionManager tm = sessionCache.getAdvancedCache().getTransactionManager();
      
      if (!(tm instanceof BatchModeTransactionManager))
      {
         throw new IllegalStateException("Unexpected transaction manager type: " + ((tm != null) ? tm.getClass().getName() : "null"));

Examples of org.jboss.ha.framework.server.lock.SharedLocalYieldingClusterLockManager

         catch (Exception e)
         {
            throw new IllegalStateException("Unexpected exception while starting group communication service for " + channel.getClusterName());
         }
         
         this.lockManager = new SharedLocalYieldingClusterLockManager(SERVICE_NAME, this.service, this.service);
         
         try
         {
            this.lockManager.start();
         }

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