sealed trait NonEmptyCatalogView extends CatalogView
Provides a view on an existing version of a non-empty catalog.
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Abstract Value Members
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abstract
val
catalog: Catalog
The catalog which is encapsulated by this view.
The catalog which is encapsulated by this view.
- Definition Classes
- CatalogView → CatalogViewLight
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abstract
val
version: Version
The catalog version which is encapsulated by this view.
The catalog version which is encapsulated by this view. Must be non-negative.
Concrete Value Members
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final
def
!=(arg0: Any): Boolean
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final
def
##(): Int
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def
asInstanceOf[T0]: T0
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clone(): AnyRef
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def
empty(partitioner: Partitioner[Key] = catalog.defaultPartitioner): RDD[(Key, Meta)]
Creates a partitioned empty RDD of (Key, Meta) in compliance with other methods of this component.
Creates a partitioned empty RDD of (Key, Meta) in compliance with other methods of this component.
- partitioner
The com.here.platform.data.processing.spark.partitioner.Partitioner applied when constructing the RDD returned.
- returns
An empty RDD of (Partition.Key, Partition.Meta), which is partitioned according to the partitioner parameter.
- Definition Classes
- CatalogView
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def
emptyChanges(partitioner: Partitioner[Key] = catalog.defaultPartitioner): RDD[(Key, Change)]
Creates a partitioned empty RDD of (Partition.Key, Partition.Change) in compliance with other methods of this component.
Creates a partitioned empty RDD of (Partition.Key, Partition.Change) in compliance with other methods of this component.
- partitioner
The com.here.platform.data.processing.spark.partitioner.Partitioner applied when constructing the RDD returned.
- returns
An empty RDD of (Partition.Key, Partition.Change), partitioned according to the partitioner parameter.
- Definition Classes
- CatalogView
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final
def
eq(arg0: AnyRef): Boolean
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def
equals(arg0: Any): Boolean
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def
finalize(): Unit
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final
def
getClass(): Class[_]
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def
hashCode(): Int
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def
hrn: HRN
The HRN (HERE Resource Name) of the catalog.
The HRN (HERE Resource Name) of the catalog. It is a resource descriptor that provides a globally unique handle for a catalog in the sense of an instance.
- Definition Classes
- CatalogViewLight
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def
id: Id
The unique identifier for the catalog, that is added to every Partition.Key returned by the query APIs and is used by the commit API for logging and statistics generation.
The unique identifier for the catalog, that is added to every Partition.Key returned by the query APIs and is used by the commit API for logging and statistics generation.
- Definition Classes
- CatalogViewLight
- See also
Catalog.Id for more details.
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final
def
isInstanceOf[T0]: Boolean
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def
ne(arg0: AnyRef): Boolean
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final
def
notify(): Unit
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final
def
notifyAll(): Unit
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def
queryAll(layers: Set[Id], partitioner: Partitioner[Key] = catalog.defaultPartitioner): RDD[(Key, Meta)]
Queries metadata of all the partitions in a given set of layers.
Queries metadata of all the partitions in a given set of layers.
Creates an RDD containing the queried metadata.
- layers
The set of layers for which the partitions should be queried.
- partitioner
The com.here.platform.data.processing.spark.partitioner.Partitioner applied when constructing the RDD returned.
- returns
The queried metadata in an RDD object partitioned according to the partitioner parameter.
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def
queryDependencies(): Seq[Dependency]
Queries the dependencies for the catalog.
Queries the dependencies for the catalog.
- returns
The dependencies of the catalog version.
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def
querySinglePartitions(layer: Id, partitions: Set[Name]): Map[Key, Meta]
Queries metadata for the selected partitions.
Queries metadata for the selected partitions.
You can query up to 100 partitions with one call.
- layer
The layer that contains the partitions being queried.
- partitions
The partition names that should be queried.
- returns
The queried metadata, for partitions that have content in the version referenced by this catalog view. Partitions not present are not returned.
- Definition Classes
- NonEmptyCatalogView → CatalogViewLight
- Note
Querying large amounts of metadata using this function is expensive and should be avoided. Instead,
CatalogView.queryAll(...)should be used whenever possible.
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def
retriever: Retriever
Exposes the Retriever for this catalog.
Exposes the Retriever for this catalog. The returned object can be captured in Spark functions and transmitted to worker nodes.
- Definition Classes
- CatalogViewLight
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final
def
synchronized[T0](arg0: ⇒ T0): T0
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def
toString(): String
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wait(arg0: Long): Unit
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