org.apache.arrow.vector

Interface VariableWidthVector

All Superinterfaces:

AutoCloseable, Closeable, Iterable<ValueVector>, ValueVector

All Known Implementing Classes:

BaseVariableWidthVector, VarBinaryVector, VarCharVector

public interface VariableWidthVector
extends ValueVector

Method Summary

Methods

Modifier and Type	Method and Description
void	allocateNew(int totalBytes, int valueCount) Allocate a new memory space for this vector.
int	getByteCapacity() Provide the maximum amount of variable width bytes that can be stored in this vector.
int	getCurrentSizeInBytes()

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

allocateNew, allocateNewSafe, clear, close, getAllocator, getBuffers, getBufferSize, getBufferSizeFor, getDataBuffer, getField, getMinorType, getNullCount, getObject, getOffsetBuffer, getReader, getTransferPair, getTransferPair, getTransferPair, getValidityBuffer, getValueCapacity, getValueCount, isNull, makeTransferPair, reAlloc, setInitialCapacity, setValueCount

Methods inherited from interface java.lang.Iterable

iterator

Method Detail

allocateNew

void allocateNew(int totalBytes,
               int valueCount)

Allocate a new memory space for this vector. Must be called prior to using the ValueVector.

Parameters:

totalBytes - Desired size of the underlying data buffer.

valueCount - Number of values in the vector.

getByteCapacity

int getByteCapacity()

Provide the maximum amount of variable width bytes that can be stored in this vector.

Returns:

the byte capacity of this vector

getCurrentSizeInBytes

int getCurrentSizeInBytes()