Type Members

1.  trait BaseSet extends AnyRef

   The common base type for PublishedSet and DeltaSet.

2.  class BaseSetIdAssigner extends AnyRef
3.  final case class CanDetermine[+A](x: A) extends Determine[A] with Product with Serializable

   A value that can be determined.

4.  sealed trait Changes[+K, +V] extends AnyRef

   Represents the changes between two KeyValues.

   Represents the changes between two KeyValues. Their may be either NoChanges or SomeChanges, which are represented by replaced key-values and deleted keys.

   K

   The type of the key

   V

   The type of the value

5.  trait DeltaContext extends AnyRef

   Provides access to a set of common resources which a user of DeltaSets may require, that can be used by com.here.platform.data.processing.driver.DeltaSetup.

6.  trait DeltaSet[K, V] extends BaseSet

   The DeltaSet is the main processing abstraction to implement custom processing patterns.

   The DeltaSet is the main processing abstraction to implement custom processing patterns.

   Pipeline developers may implement their processing logic by applying transformations to DeltaSets.

   Core of the incremental processing framework is the ability to expose not only the contents of a DeltaSet but also what has changed about the contents since a previous, reference run. This information may be used by transformed DeltaSets to also expose only what has changed, enabling differential processing across any DAG of transformations.

   Each DeltaSet is characterized by the type of keys and values it contains. The format of the input data, when applicable, needed produce the output data is not specified here, and depends on the DeltaSet implementation.

   Data in a DeltaSet is not only strongly typed but also strongly partitioned.

   The provided DeltaContext exposes the input catalog as sources. When integrating with the com.here.platform.data.processing.driver.Driver via the com.here.platform.data.processing.driver.DeltaSetup interface and relative com.here.platform.data.processing.driver.DeltaDriverTaskBuilder or directly using the com.here.platform.data.processing.driver.DeltaDriverTask, the result of processing must be exposed as sink of fixed types.

   DeltaSets are immutable, distributed, de-duplicated.

   DeltaSet transformations are incremental, lazy.

   K

   The type of the keys in the DeltaSet.

   V

   The type of the values in the DeltaSet.

7.  case class DeltaSetConfig(intermediateStorageLevel: StorageLevel, validationLevel: DeltaSetConfig.ValidationLevel.Value, threads: Int, sorting: Boolean, incremental: Boolean, forceStateless: Boolean) extends Product with Serializable
8.  sealed trait Determine[+A] extends AnyRef

   Represents a value that may or may not be determined.

   Represents a value that may or may not be determined.

   Several Determine value can be combined using Determine!.zip and Determine.reduce.

   A

   The type of the wrapped value.

9.  final case class KeyValues[K, V](rdd: RDD[(K, V)], partitioner: Partitioner[K]) extends Product with Serializable

   Uses a Spark RDD to store key-value pairs.

   Uses a Spark RDD to store key-value pairs. Compared to a normal RDD, the use of this class asserts and, where possible, ensures that two conditions are met:

   1. There are no duplicate keys. 2. The RDD is partitioned with the given partitioner.

   K

   The type of the keys.

   V

   The type of the values.

   rdd

   The Spark RDD storing a set of key-value pairs. Must be partitioned using partitioner.

   partitioner

   The partitioner.

10.  final case class Keys[K](rdd: RDD[(K, Unit)], partitioner: Partitioner[K]) extends Product with Serializable

    Uses a Spark RDD to store a set of keys.

    Uses a Spark RDD to store a set of keys. Compared to a normal RDD, the use of this class asserts and, where possible, ensures that two conditions are met:

    1. There are no duplicate keys. 2. The RDD is partitioned with the given partitioner.

    K

    The type of the keys.

    rdd

    The Spark RDD storing a set of keys. Must be partitioned using partitioner.

    partitioner

    The partitioner.

11.  class ManyToMany[S, T] extends (S) ⇒ Iterable[T] with Serializable

    Represents an m-to-n relation by pairing the function mapFn with its inverse function inverseFn.

    Represents an m-to-n relation by pairing the function mapFn with its inverse function inverseFn. If the function represented by this class is applied to a value for which inverseFn is not the inverse of mapFn, an exception is thrown.

    Note that inverseFn can be called by the Data Processing Library on values that are not produced by mapFn. Define inverseFn as a partial function to correctly restrict its domain to the set of keys, for which an inverse can be defined.

    S

    The domain of the function.

    T

    The co-domain of the function.

12.  class ManyToOne[S, T] extends (S) ⇒ T with Serializable

    Represents an n-to-1 relation by pairing the function mapFn with its inverse function inverseFn.

    Represents an n-to-1 relation by pairing the function mapFn with its inverse function inverseFn. If the function represented by this class is applied to a value for which inverseFn is not the inverse of mapFn, an exception is thrown.

    Note that inverseFn can be called by the Data Processing Library on values that are not produced by mapFn. Define inverseFn as a partial function to correctly restrict its domain to the set of keys, for which an inverse can be defined.

    S

    The domain of the function.

    T

    The co-domain of the function.

13.  class OneToMany[S, T] extends (S) ⇒ Iterable[T] with Serializable

    Represents a 1-to-n relation by pairing a function flatMapFn with its inverse function inverseFn.

    Represents a 1-to-n relation by pairing a function flatMapFn with its inverse function inverseFn. If the function represented by this class is applied to a value for which inverseFn is not the inverse of mapFn, an exception is thrown.

    Note that inverseFn can be called by the Data Processing Library on values that are not produced by mapFn. Define inverseFn as a partial function to correctly restrict its domain to the set of keys, for which an inverse can be defined.

    S

    The domain of the function.

    T

    The co-domain of the function.

14.  class OneToOne[S, T] extends (S) ⇒ T with Serializable

    Represents a 1-to-1 relation by pairing a function mapFn with its inverse function inverseFn.

    Represents a 1-to-1 relation by pairing a function mapFn with its inverse function inverseFn. If the function represented by this class is applied to a value for which inverseFn is not the inverse of mapFn, an exception is thrown.

    Note that inverseFn can be called by the Data Processing Library on values that are not produced by mapFn. Define inverseFn as a partial function to correctly restrict its domain to the set of keys, for which an inverse can be defined.

    S

    The domain of the function.

    T

    The co-domain of the function.

15.  case class PartMapperByLevel(levels: Set[Int]) extends PublishedPartMapper with Product with Serializable

    A PublishedPartMapper that assigns each key to a publish part based on its com.here.platform.data.processing.catalog.Partition.Name's level.

    A PublishedPartMapper that assigns each key to a publish part based on its com.here.platform.data.processing.catalog.Partition.Name's level. Typically used with com.here.platform.data.processing.catalog.Partition.HereTile keys, to publish each zoom level independently.

    levels

    The set of levels.

16.  sealed trait PartitioningStrategy[-K] extends AnyRef

    Indicates, for a transformation that transformations keys of type K1 to keys of type K2, whether the transformation will preserve the partitioning of the input DeltaSet, or whether it must be repartitioned with a partitioner.

    Indicates, for a transformation that transformations keys of type K1 to keys of type K2, whether the transformation will preserve the partitioning of the input DeltaSet, or whether it must be repartitioned with a partitioner.

    K

    the type of output keys.

17.  trait PublishedPart extends PublishedSetLike

    The result of publishing a DeltaSet to blobstore.

    The result of publishing a DeltaSet to blobstore. Unlike a PublishedSet, a PublishedPart corresponds to a single part of the output layers only.

18.  trait PublishedPartMapper extends Serializable

    An object that specifies how the output keys are partitioned in a multi part publishing.

    An object that specifies how the output keys are partitioned in a multi part publishing.

    See also

    com.here.platform.data.processing.driver.deltasets.transformations.Publishing.publishPart

    com.here.platform.data.processing.driver.deltasets.transformations.ReadingBack.readBack

19.  trait PublishedSet extends PublishedSetLike

    The PublishedSet is the result of publishing a DeltaSet to blobstore.

20.  trait PublishedSetLike extends BaseSet

    Base trait for classes that represent the result of publishing a DeltaSet to blobstore.

21.  case class RequiresRepartitioning[K](partitioner: Partitioner[K]) extends PartitioningStrategy[K] with Product with Serializable

    Indicates that a transformation will not preserve the partitioning of the input DeltaSet.

    Indicates that a transformation will not preserve the partitioning of the input DeltaSet. This means that an input key may transformed into an output key in a different Spark partition, and therefore, the data must be repartitioned.

    K

    the type of output keys.

    partitioner

    The partitioner to apply after the transformation.

22.  trait ResolutionStrategy[-K, -V] extends AnyRef

    Defines a strategy that determines how metadata should be resolved.

    Defines a strategy that determines how metadata should be resolved.

    K

    the key type of the subject DeltaSet (the one transformed by mapValuesWithResolver)

    V

    the value type of the subject DeltaSet (the one transformed by mapValuesWithResolver)

23.  trait Resolver extends AnyRef

    Interface to resolve keys to metadata.

    Interface to resolve keys to metadata. Provided to a mapping function used with mapValuesWithResolver and backed by one or more ResolutionStrategys.

24.  final case class SomeChanges[K, V](replaces: KeyValues[K, V], deletes: Keys[K]) extends Changes[K, V] with Product with Serializable

    Represents changes between two KeyValues, which may be non-empty (as opposed to NoChanges, which always represents empty changes).

    Represents changes between two KeyValues, which may be non-empty (as opposed to NoChanges, which always represents empty changes). Contains all keys with new values (added keys or keys with changed values), and all deleted keys.

    K

    The type of the keys.

    V

    The type of the values.

    replaces

    All keys added or changed, with their new value.

    deletes

    All keys deleted.

25.  trait StateManager extends AnyRef

    Interface for retrieving the state from within a DeltaSet implementation.

26.  trait Transformations extends AnyRef