class MapGroupToRefTreeWrapper1To1[T] extends MapGroupToRefTreeWrapperBase[T] with CompileOut1To1Fn[T]
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- MapGroupToRefTreeWrapper1To1
- CompileOut1To1Fn
- MapGroupToRefTreeWrapperBase
- CompileInFnWithRefs
- RefTreeCompiler
- CompileOutFn
- OutputOptPartitioner
- OutputLayers
- CompileInFn
- ResolveInFn
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Instance Constructors
- new MapGroupToRefTreeWrapper1To1(compiler: MapGroupCompiler[T] with CompileOut1To1Fn[T])(implicit arg0: ClassTag[T])
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def
compileInFn(in: (InKey, InMeta), refs: Map[InKey, InMeta]): Iterable[(OutKey, T)]
Calculates the dependent output partitions and intermediate results from a single input partition.
Calculates the dependent output partitions and intermediate results from a single input partition.
- in
the input partition to process
- refs
All references that are required to process the input partition
- returns
All the impacted output partitions com.here.platform.data.processing.compiler.OutKey and intermediate data of type
T
for this partition. It may contain more than one element per output key. compileOutFn will only be called for outKeys which have at least one intermediate value from this phase. Other outKeys will be automatically deleted.
- Definition Classes
- MapGroupToRefTreeWrapperBase → CompileInFnWithRefs
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final
val
compileInFnDefined: Unit
Must be overridden as final by all subclasses, to block the mixin of different interfaces in the same compiler class.
Must be overridden as final by all subclasses, to block the mixin of different interfaces in the same compiler class.
- Definition Classes
- CompileInFnWithRefs
-
def
compileOutFn(outKey: OutKey, intermediate: Iterable[T]): Option[Payload]
Compiles a single output partition.
Compiles a single output partition.
- outKey
the key of the output partition to generate
- intermediate
non-empty scala.Iterable of intermediate data as provided by compileInFn which is required to compile the output partition. This collection will have multiple entries of the same value in case the same value was returned for this outKey by multiple compileInFn executions (for different input keys). outKeys which do not have any intermediate values assigned from the compileInFn calls get deleted automatically.
- returns
scala.Option of com.here.platform.data.processing.blobstore.Payload, this method is to return exactly one element, with the same values for the output key as passed in outKey. either the partition content, or None if there is no data to be published.
- Definition Classes
- MapGroupToRefTreeWrapper1To1 → CompileOut1To1Fn
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final
def
compileOutFnDefined(): Unit
Must be overridden as final by all subclasses, to block the mixin of different interfaces in the same compiler class and to assure that at least one child interface is mixed in.
Must be overridden as final by all subclasses, to block the mixin of different interfaces in the same compiler class and to assure that at least one child interface is mixed in.
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- protected
- Definition Classes
- CompileOut1To1Fn → CompileOutFn
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val
flatInLayers: Seq[(Id, Id)]
- Definition Classes
- MapGroupToRefTreeWrapperBase
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getClass(): Class[_]
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hashCode(): Int
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def
inLayers: Map[Id, Set[Id]]
Represents layers of the input catalogs that you should query and provide to the compiler.
Represents layers of the input catalogs that you should query and provide to the compiler. These layers are grouped by input catalog and identified by catalog ID and layer ID.
- Definition Classes
- MapGroupToRefTreeWrapperBase → InputLayers
-
def
inPartitioner(parallelism: Int): Option[Partitioner[InKey]]
Specifies the partitioner to use when querying the input catalogs.
Specifies the partitioner to use when querying the input catalogs. If no partitioner is provided, by returning None from this function, then the Executor uses the default partitioner.
- parallelism
The number of partitions the partitioner should partition the catalog into, this should match the parallelism of the Spark RDD containing the input partitions.
- returns
The optional input partitioner with the parallelism specified.
- Definition Classes
- MapGroupToRefTreeWrapperBase → InputOptPartitioner
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final
val
outCatalogId: Id
Identifier for the output catalog.
Identifier for the output catalog.
- Definition Classes
- OutputLayers
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def
outLayers: Set[Id]
Layers to be produced by the compiler.
Layers to be produced by the compiler.
- Definition Classes
- MapGroupToRefTreeWrapperBase → OutputLayers
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def
outPartitioner(parallelism: Int): Option[Partitioner[OutKey]]
Specifies the partitioner to use when querying the output catalog and producing output data.
Specifies the partitioner to use when querying the output catalog and producing output data. If no partitioner is provided, by returning None from this function, then the Executor uses the default partitioner.
- parallelism
The number of partitions the partitioner should partition the catalog into, this should match the parallelism of the Spark RDD containing the output partitions.
- returns
The optional output partitioner with the parallelism specified.
- Definition Classes
- MapGroupToRefTreeWrapperBase → OutputOptPartitioner
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def
refStructure: RefTree
The refStructure defines the maximum reference tree of the source layers.
The refStructure defines the maximum reference tree of the source layers.
- Definition Classes
- MapGroupToRefTreeWrapperBase → RefTreeCompiler
- See also
com.here.platform.data.processing.compiler.reftree.RefTree for details.
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val
refTree: RefTree
- Definition Classes
- MapGroupToRefTreeWrapperBase
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def
resolveFn(src: (InKey, InMeta)): Map[RefName, Set[InKey]]
Resolves the list of partitions in all the reference target layers based on the a source partition.
Resolves the list of partitions in all the reference target layers based on the a source partition. The returned com.here.platform.data.processing.compiler.reftree.RefTree.RefName values for the references must be aligned with the values in the com.here.platform.data.processing.compiler.RefTreeCompiler.refStructure.
- src
the source partition key and metadata
- Definition Classes
- MapGroupToRefTreeWrapperBase → ResolveInFn
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synchronized[T0](arg0: ⇒ T0): T0
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