org.bytedeco.arrow_dataset

Class KeyValuePartitioning

java.lang.Object

org.bytedeco.javacpp.Pointer

org.bytedeco.arrow_dataset.Partitioning

org.bytedeco.arrow_dataset.KeyValuePartitioning

All Implemented Interfaces:

AutoCloseable

Direct Known Subclasses:

DirectoryPartitioning, HivePartitioning

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

\brief Subclass for the common case of a partitioning which yields an equality expression for each segment

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	KeyValuePartitioning.Key An unconverted equality expression consisting of a field name and the representation of a scalar value

Nested classes/interfaces inherited from class org.bytedeco.arrow_dataset.Partitioning

Partitioning.PartitionedBatches

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
KeyValuePartitioning(Pointer p) Pointer cast constructor.

Method Summary

Modifier and Type	Method and Description
ArrayVector	dictionaries()
StringResult	Format(Expression expr)
ExpressionResult	Parse(BytePointer path)
ExpressionResult	Parse(String path) \brief Parse a path into a partition expression
PartitionedBatchesResult	Partition(RecordBatch batch)

Methods inherited from class org.bytedeco.arrow_dataset.Partitioning

Default, schema, type_name

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

KeyValuePartitioning

public KeyValuePartitioning(Pointer p)

Pointer cast constructor. Invokes Pointer(Pointer).

Method Detail

Partition

@ByVal
public PartitionedBatchesResult Partition(@SharedPtr @Cast(value={"","std::shared_ptr<arrow::RecordBatch>"})
                                                  RecordBatch batch)

Overrides:

Partition in class Partitioning

Parse

@ByVal
public ExpressionResult Parse(@StdString
                                      String path)

Description copied from class: Partitioning

\brief Parse a path into a partition expression

Overrides:

Parse in class Partitioning

Parse

@ByVal
public ExpressionResult Parse(@StdString
                                      BytePointer path)

Overrides:

Parse in class Partitioning

Format

@ByVal
public StringResult Format(@Const @ByRef
                                   Expression expr)

Overrides:

Format in class Partitioning

dictionaries

@Const
 @ByRef
public ArrayVector dictionaries()