org.bytedeco.arrow_dataset

Class UnionDataset

java.lang.Object

org.bytedeco.javacpp.Pointer

org.bytedeco.arrow_dataset.Dataset

org.bytedeco.arrow_dataset.UnionDataset

All Implemented Interfaces:

AutoCloseable

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

\brief A Dataset wrapping child Datasets.

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
UnionDataset(Pointer p) Pointer cast constructor.

Method Summary

Modifier and Type	Method and Description
Dataset	children()
static UnionDatasetResult	Make(Schema schema, Dataset children) \brief Construct a UnionDataset wrapping child Datasets.
DatasetResult	ReplaceSchema(Schema schema) \brief Return a copy of this Dataset with a different schema.
String	type_name() \brief The name identifying the kind of Dataset

Methods inherited from class org.bytedeco.arrow_dataset.Dataset

GetFragments, GetFragments, NewScan, partition_expression, schema

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

UnionDataset

public UnionDataset(Pointer p)

Pointer cast constructor. Invokes Pointer(Pointer).

Method Detail

Make

@ByVal
public static UnionDatasetResult Make(@SharedPtr @ByVal
                                              Schema schema,
                                              @SharedPtr @ByVal
                                              Dataset children)

\brief Construct a UnionDataset wrapping child Datasets.

Parameters:

schema - [in] the schema of the resulting dataset.

children - [in] one or more child Datasets. Their schemas must be identical to schema.

children

@Const
 @SharedPtr
 @ByRef
public Dataset children()

type_name

@StdString
public String type_name()

Description copied from class: Dataset

\brief The name identifying the kind of Dataset

Overrides:

type_name in class Dataset

ReplaceSchema

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

Description copied from class: Dataset

\brief Return a copy of this Dataset with a different schema. The copy will view the same Fragments. If the new schema is not compatible with the original dataset's schema then an error will be raised.

Overrides:

ReplaceSchema in class Dataset