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
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Instance Constructors
- new DeltaReducer()
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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
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final
def
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final
def
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final
def
==(arg0: Any): Boolean
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def
apply(features: CloseableIterator[SimpleFeature]): CloseableIterator[SimpleFeature]
Reduce the results of a scan
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final
def
asInstanceOf[T0]: T0
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def
clone(): AnyRef
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final
def
eq(arg0: AnyRef): Boolean
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def
equals(other: Any): Boolean
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final
def
getClass(): Class[_]
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def
hashCode(): Int
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def
init(state: Map[String, String]): Unit
Initialize an instance after deserialization
Initialize an instance after deserialization
- state
state
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- DeltaReducer → SerializableState
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final
def
isInstanceOf[T0]: Boolean
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notify(): Unit
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final
def
notifyAll(): Unit
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def
state: Map[String, String]
The state used to serialize this instance
The state used to serialize this instance
- Definition Classes
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final
def
synchronized[T0](arg0: ⇒ T0): T0
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def
toString(): String
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final
def
wait(arg0: Long, arg1: Int): Unit
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def
wait(arg0: Long): Unit
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