Module org.apache.arrow.vector

Package org.apache.arrow.vector.extension

Class OpaqueVector

java.lang.Object

org.apache.arrow.vector.BaseValueVector

org.apache.arrow.vector.ExtensionTypeVector<FieldVector>

org.apache.arrow.vector.extension.OpaqueVector

All Implemented Interfaces:

Closeable, AutoCloseable, Iterable<ValueVector>, FieldVector, ValueIterableVector<Object>, ValueVector

public class OpaqueVector
extends ExtensionTypeVector<FieldVector>
implements ValueIterableVector<Object>

Opaque is a wrapper for (usually binary) data from an external (often non-Arrow) system that could not be interpreted.

Field Summary

Fields inherited from class org.apache.arrow.vector.BaseValueVector

allocator, fieldReader, INITIAL_VALUE_ALLOCATION, MAX_ALLOCATION_SIZE, MAX_ALLOCATION_SIZE_PROPERTY, validityBuffer, valueCount

Constructor Summary

Constructors

Constructor	Description
OpaqueVector(Field field, BufferAllocator allocator, FieldVector underlyingVector)

Method Summary

Modifier and Type	Method	Description
Field	getField()	Get information about how this field is materialized.
Object	getObject(int index)	Get the extension object at the specified index.
int	hashCode(int index)	Returns hashCode of element in index with the default hasher.
int	hashCode(int index, ArrowBufHasher hasher)	Returns hashCode of element in index with the given hasher.

Methods inherited from class org.apache.arrow.vector.ExtensionTypeVector

accept, allocateNew, allocateNewSafe, clear, close, getAllocator, getBuffers, getBufferSize, getBufferSizeFor, getChildrenFromFields, getDataBuffer, getDataBufferAddress, getFieldBuffers, getFieldInnerVectors, getMinorType, getName, getNullCount, getOffsetBuffer, getOffsetBufferAddress, getReaderImpl, getTransferPair, getTransferPair, getTransferPair, getTransferPair, getTransferPair, getUnderlyingVector, getValidityBuffer, getValidityBufferAddress, getValueCapacity, getValueCount, initializeChildrenFromFields, isNull, iterator, loadFieldBuffers, makeTransferPair, reAlloc, reset, setInitialCapacity, setNull, setValueCount

Methods inherited from class org.apache.arrow.vector.BaseValueVector

allocateValidityBuffer, checkBufRefs, copyFrom, copyFromSafe, copyValidityBuffer, getReader, getValidityBufferSizeFromCount, releaseBuffer, sliceAndTransferValidityBuffer, splitAndTransferValidityBuffer, toString, transferBuffer

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface org.apache.arrow.vector.FieldVector

exportBuffer, exportCDataBuffers, getExportedCDataBufferCount

Methods inherited from interface java.lang.Iterable

forEach, iterator, spliterator

Methods inherited from interface org.apache.arrow.vector.ValueIterableVector

getValueIterable, getValueIterator

Methods inherited from interface org.apache.arrow.vector.ValueVector

accept, allocateNew, allocateNewSafe, clear, close, copyFrom, copyFromSafe, getAllocator, getBuffers, getBufferSize, getBufferSizeFor, getDataBuffer, getMinorType, getName, getNullCount, getOffsetBuffer, getReader, getTransferPair, getTransferPair, getTransferPair, getTransferPair, getTransferPair, getValidityBuffer, getValueCapacity, getValueCount, isNull, makeTransferPair, reAlloc, reset, setInitialCapacity, setValueCount, validate, validateFull

Constructor Details

OpaqueVector

public OpaqueVector(Field field,
 BufferAllocator allocator,
 FieldVector underlyingVector)

Method Details

getField

public Field getField()

Description copied from interface: ValueVector

Get information about how this field is materialized.

Specified by:

getField in interface ValueVector

Overrides:

getField in class ExtensionTypeVector<FieldVector>

Returns:

the field corresponding to this vector

getObject

public Object getObject(int index)

Description copied from class: ExtensionTypeVector

Get the extension object at the specified index.

Generally, this should access the underlying vector and construct the corresponding Java object from the raw data.

Specified by:

getObject in interface ValueVector

Specified by:

getObject in class ExtensionTypeVector<FieldVector>

Parameters:

index - index of object to get

Returns:

friendly type object, null if value is unset

hashCode

public int hashCode(int index)

Description copied from interface: ValueVector

Returns hashCode of element in index with the default hasher.

Specified by:

hashCode in interface ValueVector

hashCode

public int hashCode(int index,
 ArrowBufHasher hasher)

Description copied from interface: ValueVector

Returns hashCode of element in index with the given hasher.

Specified by:

hashCode in interface ValueVector