org.bytedeco.arrow_dataset

Class DatasetFactory

java.lang.Object

org.bytedeco.javacpp.Pointer

org.bytedeco.arrow_dataset.DatasetFactory

All Implemented Interfaces:

AutoCloseable

Direct Known Subclasses:

FileSystemDatasetFactory, ParquetDatasetFactory, UnionDatasetFactory

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

\brief DatasetFactory provides a way to inspect/discover a Dataset's expected schema before materializing said Dataset.

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
DatasetFactory(Pointer p) Pointer cast constructor.

Method Summary

Modifier and Type	Method and Description
DatasetResult	Finish() \brief Create a Dataset
DatasetResult	Finish(FinishOptions options) \brief Create a Dataset with the given options
DatasetResult	Finish(Schema schema) \brief Create a Dataset with the given schema (see \a InspectOptions::schema)
SchemaResult	Inspect()
SchemaResult	Inspect(InspectOptions options) \brief Get unified schema for the resulting Dataset.
SchemaVectorResult	InspectSchemas(InspectOptions options) \brief Get the schemas of the Fragments and Partitioning.
Expression	root_partition() \brief Optional root partition for the resulting Dataset.
Status	SetRootPartition(Expression partition) \brief Set the root partition for the resulting Dataset.

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, getPointer, hashCode, interruptDeallocatorThread, isNull, isNull, limit, limit, malloc, maxBytes, maxPhysicalBytes, memchr, memcmp, memcpy, memmove, memset, offsetAddress, offsetof, offsetof, parseBytes, physicalBytes, physicalBytesInaccurate, position, 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

DatasetFactory

public DatasetFactory(Pointer p)

Pointer cast constructor. Invokes Pointer(Pointer).

Method Detail

InspectSchemas

@ByVal
public SchemaVectorResult InspectSchemas(@ByVal
                                                 InspectOptions options)

\brief Get the schemas of the Fragments and Partitioning.

Inspect

@ByVal
public SchemaResult Inspect(@ByVal(nullValue="arrow::dataset::InspectOptions{}")
                                    InspectOptions options)

\brief Get unified schema for the resulting Dataset.

Inspect

@ByVal
public SchemaResult Inspect()

Finish

@ByVal
public DatasetResult Finish()

\brief Create a Dataset

Finish

@ByVal
public DatasetResult Finish(@SharedPtr @ByVal
                                    Schema schema)

\brief Create a Dataset with the given schema (see \a InspectOptions::schema)

Finish

@ByVal
public DatasetResult Finish(@ByVal
                                    FinishOptions options)

\brief Create a Dataset with the given options

root_partition

@Const
 @ByRef
public Expression root_partition()

\brief Optional root partition for the resulting Dataset.

SetRootPartition

@ByVal
public Status SetRootPartition(@ByVal
                                       Expression partition)

\brief Set the root partition for the resulting Dataset.