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Type Members

1. case class LockInfo(name: String, checksec: Int, enabled: Boolean, lock: Option[UUID], lockttlsec: Int, schedule: Option[CronExpression], last: Option[DateTime], state: Option[String]) extends Product with Serializable

   

   This class represents the information stored in the 'locks' table.

   This class represents the information stored in the 'locks' table. See also Table.

   name

   checksec

   enabled

   lock

   lockttlsec

   schedule

   last

   state

2. class LockToucher extends Actor with LazyLogging

   

   This actor is responsible for touching the lock of a singleton leader periodically to prevent it from timing out.

   This actor is responsible for touching the lock of a singleton leader periodically to prevent it from timing out.

   The most critical thing this actor needs to make sure is that it reports a failure to touch the lock using the onFailure callback.

3. class SingletonContext extends AnyRef

   

   Handle class to provide context used by all singletons (mostly the Cassandra database connection for now)

4. class SingletonManager extends Actor with LazyLogging

   

5. case class SingletonManagerConfig(initialMaxDelay: FiniteDuration = 10.seconds, checkInterval: FiniteDuration = 20.seconds, lockTtl: FiniteDuration = 240.seconds, lockEnabled: Boolean = false) extends Product with Serializable

   

   Configuration for leaders beyond the configuration provided by the log itself.

   Configuration for leaders beyond the configuration provided by the log itself.

   initialMaxDelay

   The manager will pick a random startup delay between 0 and initialMaxDelay in order to avoid that all managers try to grab a lock at the same time upon startup.

   checkInterval

   Specifies how often the SingletonManager will try to acquire the given lock in the absence of retrieved LockInfo and to which check interval the lock will be set if tt is initially created by a SingletonManager

   lockTtl

   Specifies the TTL of the lock if it is initially created by a SingletonManager

   lockEnabled

   Specifies whether the lock is initially created as active or inactive.

6. abstract class Worker extends Actor with LazyLogging

   

   Base class for workers to be managed by singleton manager.

   Base class for workers to be managed by singleton manager.

   FIXME: Examples.