org.bytedeco.arrow

Class SparseUnionBuilder

java.lang.Object

org.bytedeco.javacpp.Pointer

org.bytedeco.arrow.ArrayBuilder

org.bytedeco.arrow.BasicUnionBuilder

org.bytedeco.arrow.SparseUnionBuilder

All Implemented Interfaces:

AutoCloseable

@Namespace(value="arrow")
 @Properties(inherit=arrow.class)
public class SparseUnionBuilder
extends BasicUnionBuilder

\class SparseUnionBuilder This API is EXPERIMENTAL.

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
SparseUnionBuilder(MemoryPool pool) Use this constructor to initialize the UnionBuilder with no child builders, allowing type to be inferred.
SparseUnionBuilder(MemoryPool pool, ArrayBuilderVector children, DataType type) Use this constructor to specify the type explicitly.
SparseUnionBuilder(Pointer p) Pointer cast constructor.

Method Summary

Modifier and Type	Method and Description
Status	Append(byte next_type) \brief Append an element to the UnionArray.
Status	AppendNull() \brief Append a null value.
Status	AppendNulls(long length) \brief Append multiple null values.

Methods inherited from class org.bytedeco.arrow.BasicUnionBuilder

AppendChild, AppendChild, AppendChild, Finish, FinishInternal, length, type

Methods inherited from class org.bytedeco.arrow.ArrayBuilder

_capacity, Advance, child, Finish, null_count, num_children, Reserve, Reset, Resize

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

SparseUnionBuilder

public SparseUnionBuilder(Pointer p)

Pointer cast constructor. Invokes Pointer.Pointer(Pointer).

SparseUnionBuilder

public SparseUnionBuilder(MemoryPool pool)

Use this constructor to initialize the UnionBuilder with no child builders, allowing type to be inferred. You will need to call AppendChild for each of the children builders you want to use.

SparseUnionBuilder

public SparseUnionBuilder(MemoryPool pool,
                          @Const @ByRef
                          ArrayBuilderVector children,
                          @SharedPtr @Cast(value={"","std::shared_ptr<arrow::DataType>"})
                          DataType type)

Use this constructor to specify the type explicitly. You can still add child builders to the union after using this constructor

Method Detail

AppendNull

@ByVal
public Status AppendNull()

\brief Append a null value. A null is added automatically to all the children but the type id in the slot will be 0

Overrides:

AppendNull in class ArrayBuilder

AppendNulls

@ByVal
public Status AppendNulls(@Cast(value="int64_t")
                                  long length)

\brief Append multiple null values. Nulls will be automatically appended to all the children but the type ids will be all 0.

Overrides:

AppendNulls in class ArrayBuilder

Append

@ByVal
public Status Append(byte next_type)

\brief Append an element to the UnionArray. This must be followed by an append to the appropriate child builder.

Parameters:

next_type - [in] type_id of the child to which the next value will be appended. The corresponding child builder must be appended to independently after this method is called, and all other child builders must have null appended