object ArrowDictionary
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- class ArrowDictionaryArray[T <: AnyRef] extends ArrowDictionary
Holder for dictionary values
- class ArrowDictionaryBuilder extends ArrowDictionary
Tracks values seen and writes dictionary encoded ints instead
- class ArrowDictionaryVector extends ArrowDictionary
Dictionary that wraps an arrow vector
Value Members
- final def !=(arg0: Any): Boolean
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- final def ##: Int
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- @throws(classOf[java.lang.CloneNotSupportedException]) @native()
- def create(encoding: DictionaryEncoding, values: FieldVector, bindings: Seq[ObjectType], precision: SimpleFeatureEncoding): ArrowDictionary
Create a dictionary based on wrapping an arrow vector
Create a dictionary based on wrapping an arrow vector
- encoding
dictionary id and metadata
- values
dictionary vector
- bindings
attribute descriptor bindings, used for reading values from the arrow vector
- precision
simple feature encoding used on the dictionary values
- def create(encoding: DictionaryEncoding, values: FieldVector, descriptor: AttributeDescriptor, precision: SimpleFeatureEncoding): ArrowDictionary
Create a dictionary based on wrapping an arrow vector
Create a dictionary based on wrapping an arrow vector
- encoding
dictionary id and metadata
- values
dictionary vector
- descriptor
attribute descriptor for the dictionary, used to read values from the underlying vector
- precision
simple feature encoding used on the dictionary values
- def create[T <: AnyRef](typename: String, id: Long, values: Array[T], length: Int)(implicit ct: ClassTag[T]): ArrowDictionary
Create a dictionary based on a subset of a value array
Create a dictionary based on a subset of a value array
- id
dictionary id
- values
array of dictionary values
- length
number of valid entries in the values array, starting at position 0
- def create[T <: AnyRef](typename: String, id: Long, values: Array[T])(implicit ct: ClassTag[T]): ArrowDictionary
Create a dictionary based off a sequence of values.
Create a dictionary based off a sequence of values. Encoding will be smallest that will fit all values.
- id
dictionary id
- values
dictionary values
- returns
dictionary
- final def eq(arg0: AnyRef): Boolean
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- def equals(arg0: AnyRef): Boolean
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- def finalize(): Unit
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- def hashCode(): Int
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- final def notifyAll(): Unit
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