Packages

class DeltaReducer extends FeatureReducer

Reduce function for delta batches.

First feature contains metadata for arrow file and dictionary batch, subsequent features contain record batches, final feature contains EOF indicator

Linear Supertypes
FeatureReducer, SerializableState, AnyRef, Any
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Inherited
  1. DeltaReducer
  2. FeatureReducer
  3. SerializableState
  4. AnyRef
  5. Any
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Visibility
  1. Public
  2. All

Instance Constructors

  1. new DeltaReducer()
  2. new DeltaReducer(sft: SimpleFeatureType, dictionaryFields: Seq[String], encoding: SimpleFeatureEncoding, ipcOpts: IpcOption, batchSize: Int, sort: Option[(String, Boolean)], sorted: Boolean, process: Boolean)

    sft

    simple feature type

    dictionaryFields

    dictionaries

    encoding

    encoding

    batchSize

    batch size

    sort

    sort

Value Members

  1. def apply(features: CloseableIterator[SimpleFeature]): CloseableIterator[SimpleFeature]

    Reduce the results of a scan

    Reduce the results of a scan

    features

    features

    Definition Classes
    DeltaReducer → FeatureReducer
  2. def canEqual(other: Any): Boolean
  3. def equals(other: Any): Boolean
    Definition Classes
    DeltaReducer → AnyRef → Any
  4. def hashCode(): Int
    Definition Classes
    DeltaReducer → AnyRef → Any
  5. def init(state: Map[String, String]): Unit

    Initialize an instance after deserialization

    Initialize an instance after deserialization

    state

    state

    Definition Classes
    DeltaReducer → SerializableState
  6. def state: Map[String, String]

    The state used to serialize this instance

    The state used to serialize this instance

    Definition Classes
    DeltaReducer → SerializableState
  7. def toString(): String
    Definition Classes
    FeatureReducer → AnyRef → Any