org.bytedeco.arrow_dataset

Class PartitioningFactoryOptions

java.lang.Object

org.bytedeco.javacpp.Pointer

org.bytedeco.arrow_dataset.PartitioningFactoryOptions

All Implemented Interfaces:

AutoCloseable

Direct Known Subclasses:

HivePartitioningFactoryOptions

@Namespace(value="arrow::dataset")
 @Properties(inherit=arrow_dataset.class)
public class PartitioningFactoryOptions
extends Pointer

\brief Options for inferring a partitioning.

Nested Class Summary

Nested classes/interfaces inherited from class org.bytedeco.javacpp.Pointer

Pointer.CustomDeallocator, Pointer.Deallocator, Pointer.NativeDeallocator, Pointer.ReferenceCounter

Field Summary

Fields inherited from class org.bytedeco.javacpp.Pointer

address, capacity, limit, position

Constructor Summary

Constructors

Constructor and Description
PartitioningFactoryOptions() Default native constructor.
PartitioningFactoryOptions(long size) Native array allocator.
PartitioningFactoryOptions(Pointer p) Pointer cast constructor.

Method Summary

Modifier and Type	Method and Description
KeyValuePartitioningOptions	AsPartitioningOptions()
PartitioningFactoryOptions	getPointer(long i)
boolean	infer_dictionary() When inferring a schema for partition fields, yield dictionary encoded types instead of plain.
PartitioningFactoryOptions	infer_dictionary(boolean setter)
PartitioningFactoryOptions	position(long position)
Schema	schema() Optionally, an expected schema can be provided, in which case inference will only check discovered fields against the schema and update internal state (such as dictionaries).
PartitioningFactoryOptions	schema(Schema setter)
arrow_dataset.SegmentEncoding	segment_encoding() After splitting a path into components, decode the path components before parsing according to this scheme.
PartitioningFactoryOptions	segment_encoding(arrow_dataset.SegmentEncoding setter)

Methods inherited from class org.bytedeco.javacpp.Pointer

address, asBuffer, asByteBuffer, availablePhysicalBytes, calloc, capacity, capacity, close, deallocate, deallocate, deallocateReferences, deallocator, deallocator, equals, fill, formatBytes, free, getDirectBufferAddress, getPointer, getPointer, getPointer, hashCode, interruptDeallocatorThread, isNull, isNull, limit, limit, malloc, maxBytes, maxPhysicalBytes, memchr, memcmp, memcpy, memmove, memset, offsetAddress, offsetof, offsetof, parseBytes, physicalBytes, physicalBytesInaccurate, position, put, realloc, referenceCount, releaseReference, retainReference, setNull, sizeof, sizeof, toString, totalBytes, totalCount, totalPhysicalBytes, withDeallocator, zero

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

PartitioningFactoryOptions

public PartitioningFactoryOptions()

Default native constructor.

PartitioningFactoryOptions

public PartitioningFactoryOptions(long size)

Native array allocator. Access with Pointer.position(long).

PartitioningFactoryOptions

public PartitioningFactoryOptions(Pointer p)

Pointer cast constructor. Invokes Pointer(Pointer).

Method Detail

position

public PartitioningFactoryOptions position(long position)

Overrides:

position in class Pointer

getPointer

public PartitioningFactoryOptions getPointer(long i)

Overrides:

getPointer in class Pointer

infer_dictionary

@Cast(value="bool")
public boolean infer_dictionary()

When inferring a schema for partition fields, yield dictionary encoded types instead of plain. This can be more efficient when materializing virtual columns, and Expressions parsed by the finished Partitioning will include dictionaries of all unique inspected values for each field.

infer_dictionary

public PartitioningFactoryOptions infer_dictionary(boolean setter)

schema

@SharedPtr
 @ByRef
public Schema schema()

Optionally, an expected schema can be provided, in which case inference will only check discovered fields against the schema and update internal state (such as dictionaries).

schema

public PartitioningFactoryOptions schema(Schema setter)

segment_encoding

public arrow_dataset.SegmentEncoding segment_encoding()

After splitting a path into components, decode the path components before parsing according to this scheme.

segment_encoding

public PartitioningFactoryOptions segment_encoding(arrow_dataset.SegmentEncoding setter)

AsPartitioningOptions

@ByVal
public KeyValuePartitioningOptions AsPartitioningOptions()