Packages

package root

Definition Classes: root

package com

Definition Classes: root

package here

Definition Classes: com

package platform

Definition Classes: here

package data

Definition Classes: platform

package processing

This package provides the Data Processing Library for building distributed data processing applications.

A Runner both implements the interface with the environment for an application to run, and starts the application. The application, in turn, is driven by a Driver, that controls and performs the distributed processing.

Choose a Runner best suited for the environment where the application runs.

The Driver performs one of more tasks which read layers from input catalogs and write to one or more layers of an output catalog.

The main entry point in the processing library is the com.here.platform.data.processing.driver.DriverBuilder class where you can add different kinds of tasks to the driver. The driver runs the tasks, and commits the final results to the output catalog.

Tasks are implemented using one or more compilers.

The simplest compiler is the direct compiler which maps each input tile to N output tiles. The application needs to define com.here.platform.data.processing.compiler.Direct1ToNCompiler.

Other more complex compilation patterns are based on some kind of dependency tracking between input partitions and output partitions.

The processing Library supports the following patterns:

- com.here.platform.data.processing.compiler.NonIncrementalCompiler: non-incremental compilation only - com.here.platform.data.processing.compiler.DepCompiler: non-incremental dependency calculation and incremental compilation - com.here.platform.data.processing.compiler.IncrementalDepCompiler: incremental dependency calculation and compilation - com.here.platform.data.processing.compiler.Direct1ToNCompiler: incremental compilation where every output tile depends only on one input tile, and this mapping is independent from tile content - com.here.platform.data.processing.compiler.DirectMToNCompiler: incremental compilation where every output tile depends on multiple input tiles, and this mapping is independent from tile content - com.here.platform.data.processing.compiler.MapGroupCompiler: incremental compilation where every output tile can depend on multiple input tiles, and this mapping depend on the tile content - com.here.platform.data.processing.compiler.RefTreeCompiler: fully-managed two phases incremental compilation that can resolve references between input partitions. Input/Output dependency management is implemented and the developer doesn't need to provide this logic

The application's main object normally mixes in the a runner trait (like PipelineRunner) to setup the Driver, and interfaces with the environment where the application is run. See the Main classes in the example compilers for more details.

com.here.platform.data.processing.catalog, com.here.platform.data.processing.blobstore, and com.here.platform.data.processing.publisher contain utilities for accessing catalogs and payloads in a Spark-friendly way, providing an RDD-based abstraction over data and metadata. These classes are used by the processing library, but can also be used independently.

Definition Classes: data

package leveling

Definition Classes: processing

AdaptivePattern

AdaptivePatternEstimateFn

AdaptivePatternEstimator

FixedPattern

Implicits

Pattern

com.here.platform.data.processing.leveling

FixedPattern

case class FixedPattern(level: Int) extends Pattern with Product with Serializable

Levels partitions to a com.here.platform.data.processing.catalog.Partition.HereTile level not greater than a fixed one.

Partition names that are HereTiles with a level greater than the fixed level are aggregated into their parent HereTile at the fixed level. Partition names that are not HereTiles, or are HereTiles already at the given level or at a lower level, are left unmapped.

level: The fixed level.

Linear Supertypes

Product, Equals, Pattern, Serializable, Serializable, (Name) ⇒ Name, AnyRef, Any

Ordering

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By Inheritance

Inherited

FixedPattern
Product
Equals
Pattern
Serializable
Serializable
Function1
AnyRef
Any

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Visibility

Public
All

Instance Constructors

new FixedPattern(level: Int)
level
The fixed level.

Value Members

final def !=(arg0: Any): Boolean

Definition Classes
AnyRef → Any
final def ##(): Int

Definition Classes
AnyRef → Any
final def ==(arg0: Any): Boolean

Definition Classes
AnyRef → Any
def andThen[A](g: (Name) ⇒ A): (Name) ⇒ A

Definition Classes
Function1
Annotations
@unspecialized()
final def apply(partition: Name): Name
Enables using the pattern as a scala.Predef.Function.
Enables using the pattern as a scala.Predef.Function.
partition
The name of a partition.
returns
The partition to which the given partition should be mapped, if any; otherwise the partition name is returned unchanged.

Definition Classes
Pattern → Function1
final def asInstanceOf[T0]: T0

Definition Classes
Any
def clone(): AnyRef

Attributes
protected[lang]
Definition Classes
AnyRef
Annotations
@throws( ... ) @native()
def compose[A](g: (A) ⇒ Name): (A) ⇒ Name

Definition Classes
Function1
Annotations
@unspecialized()
final def eq(arg0: AnyRef): Boolean

Definition Classes
AnyRef
def finalize(): Unit

Attributes
protected[lang]
Definition Classes
AnyRef
Annotations
@throws( classOf[java.lang.Throwable] )
final def getClass(): Class[_]

Definition Classes
AnyRef → Any
Annotations
@native()
final def isInstanceOf[T0]: Boolean

Definition Classes
Any
val level: Int
def levelingTargetFor(partition: Name): Option[Name]
Finds the leveling point to which a partition should be mapped.
Finds the leveling point to which a partition should be mapped.
partition
The name of a partition
returns
The partition to which the given partition should be mapped, if any

Definition Classes
FixedPattern → Pattern
final def ne(arg0: AnyRef): Boolean

Definition Classes
AnyRef
final def notify(): Unit

Definition Classes
AnyRef
Annotations
@native()
final def notifyAll(): Unit

Definition Classes
AnyRef
Annotations
@native()
final def synchronized[T0](arg0: ⇒ T0): T0

Definition Classes
AnyRef
def toString(): String

Definition Classes
Function1 → AnyRef → Any
final def wait(): Unit

Definition Classes
AnyRef
Annotations
@throws( ... )
final def wait(arg0: Long, arg1: Int): Unit

Definition Classes
AnyRef
Annotations
@throws( ... )
final def wait(arg0: Long): Unit

Definition Classes
AnyRef
Annotations
@throws( ... ) @native()

Packages

FixedPattern

case class FixedPattern(level: Int) extends Pattern with Product with Serializable

Instance Constructors

Value Members

Inherited from Product

Inherited from Equals

Inherited from Pattern

Inherited from Serializable

Inherited from Serializable

Inherited from (Name) ⇒ Name

Inherited from AnyRef

Inherited from Any

Ungrouped

Packages

FixedPattern 

case class FixedPattern(level: Int) extends Pattern with Product with Serializable

Instance Constructors

Value Members

Inherited from Product

Inherited from Equals

Inherited from Pattern

Inherited from Serializable

Inherited from Serializable

Inherited from (Name) ⇒ Name

Inherited from AnyRef

Inherited from Any

Ungrouped

FixedPattern