org.bytedeco.arrow

Class ResizableBuffer

java.lang.Object

org.bytedeco.javacpp.Pointer

org.bytedeco.arrow.ArrowBuffer

org.bytedeco.arrow.MutableBuffer

org.bytedeco.arrow.ResizableBuffer

All Implemented Interfaces:

AutoCloseable

@Namespace(value="arrow")
 @Properties(inherit=arrow.class)
public class ResizableBuffer
extends MutableBuffer

\class ResizableBuffer \brief A mutable buffer that can be resized

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
ResizableBuffer(Pointer p) Pointer cast constructor.

Method Summary

Modifier and Type	Method and Description
Status	Reserve(long new_capacity) Ensure that buffer has enough memory allocated to fit the indicated capacity (and meets the 64 byte padding requirement in Layout.md).
Status	Resize(long new_size)
Status	Resize(long new_size, boolean shrink_to_fit) Change buffer reported size to indicated size, allocating memory if necessary.

Methods inherited from class org.bytedeco.arrow.ArrowBuffer

_address, _capacity, Copy, CopySlice, CopySlice, data, device, Equals, Equals, FromString, FromString, get, GetReader, GetWriter, is_cpu, is_mutable, memory_manager, mutable_address, mutable_data, parent, size, ToHexString, ToString, View, ViewOrCopy, ZeroPadding

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

ResizableBuffer

public ResizableBuffer(Pointer p)

Pointer cast constructor. Invokes Pointer(Pointer).

Method Detail

Resize

@ByVal
public Status Resize(@Cast(value="const int64_t")
                             long new_size,
                             @Cast(value="bool")
                             boolean shrink_to_fit)

Change buffer reported size to indicated size, allocating memory if necessary. This will ensure that the capacity of the buffer is a multiple of 64 bytes as defined in Layout.md. Consider using ZeroPadding afterwards, to conform to the Arrow layout specification.

Parameters:

new_size - The new size for the buffer.

shrink_to_fit - Whether to shrink the capacity if new size < current size

Resize

@ByVal
public Status Resize(@Cast(value="const int64_t")
                             long new_size)

Reserve

@ByVal
public Status Reserve(@Cast(value="const int64_t")
                              long new_capacity)

Ensure that buffer has enough memory allocated to fit the indicated capacity (and meets the 64 byte padding requirement in Layout.md). It does not change buffer's reported size and doesn't zero the padding.