Packages

case class StateStoreId(checkpointRootLocation: String, operatorId: Long, partitionId: Int, storeName: String = StateStoreId.DEFAULT_STORE_NAME) extends Product with Serializable

Unique identifier for a bunch of keyed state data.

checkpointRootLocation

Root directory where all the state data of a query is stored

operatorId

Unique id of a stateful operator

partitionId

Index of the partition of an operators state data

storeName

Optional, name of the store. Each partition can optionally use multiple state stores, but they have to be identified by distinct names.

Linear Supertypes
Serializable, Serializable, Product, Equals, AnyRef, Any
Ordering
  1. Alphabetic
  2. By Inheritance
Inherited
  1. StateStoreId
  2. Serializable
  3. Serializable
  4. Product
  5. Equals
  6. AnyRef
  7. Any
  1. Hide All
  2. Show All
Visibility
  1. Public
  2. All

Instance Constructors

  1. new StateStoreId(checkpointRootLocation: String, operatorId: Long, partitionId: Int, storeName: String = StateStoreId.DEFAULT_STORE_NAME)

    checkpointRootLocation

    Root directory where all the state data of a query is stored

    operatorId

    Unique id of a stateful operator

    partitionId

    Index of the partition of an operators state data

    storeName

    Optional, name of the store. Each partition can optionally use multiple state stores, but they have to be identified by distinct names.

Value Members

  1. final def !=(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  2. final def ##(): Int
    Definition Classes
    AnyRef → Any
  3. final def ==(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  4. final def asInstanceOf[T0]: T0
    Definition Classes
    Any
  5. val checkpointRootLocation: String
  6. def clone(): AnyRef
    Attributes
    protected[lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( ... ) @native()
  7. final def eq(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  8. def finalize(): Unit
    Attributes
    protected[lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( classOf[java.lang.Throwable] )
  9. final def getClass(): Class[_]
    Definition Classes
    AnyRef → Any
    Annotations
    @native()
  10. final def isInstanceOf[T0]: Boolean
    Definition Classes
    Any
  11. final def ne(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  12. final def notify(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native()
  13. final def notifyAll(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native()
  14. val operatorId: Long
  15. val partitionId: Int
  16. def storeCheckpointLocation(): Path

    Checkpoint directory to be used by a single state store, identified uniquely by the tuple (operatorId, partitionId, storeName).

    Checkpoint directory to be used by a single state store, identified uniquely by the tuple (operatorId, partitionId, storeName). All implementations of StateStoreProvider should use this path for saving state data, as this ensures that distinct stores will write to different locations.

  17. val storeName: String
  18. final def synchronized[T0](arg0: ⇒ T0): T0
    Definition Classes
    AnyRef
  19. def toString(): String
    Definition Classes
    StateStoreId → AnyRef → Any
  20. final def wait(): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  21. final def wait(arg0: Long, arg1: Int): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  22. final def wait(arg0: Long): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws( ... ) @native()

Inherited from Serializable

Inherited from Serializable

Inherited from Product

Inherited from Equals

Inherited from AnyRef

Inherited from Any

Ungrouped