org.apache.drill.exec.vector

Interface FixedWidthVector

All Superinterfaces:

AutoCloseable, Closeable, Iterable<ValueVector>, ValueVector

All Known Implementing Classes:

BigIntVector, BitVector, DateVector, Decimal18Vector, Decimal28DenseVector, Decimal28SparseVector, Decimal38DenseVector, Decimal38SparseVector, Decimal9Vector, Float4Vector, Float8Vector, IntervalDayVector, IntervalVector, IntervalYearVector, IntVector, NullableBigIntVector, NullableBitVector, NullableDateVector, NullableDecimal18Vector, NullableDecimal28DenseVector, NullableDecimal28SparseVector, NullableDecimal38DenseVector, NullableDecimal38SparseVector, NullableDecimal9Vector, NullableFloat4Vector, NullableFloat8Vector, NullableIntervalDayVector, NullableIntervalVector, NullableIntervalYearVector, NullableIntVector, NullableSmallIntVector, NullableTimeStampVector, NullableTimeVector, NullableTinyIntVector, NullableUInt1Vector, NullableUInt2Vector, NullableUInt4Vector, NullableUInt8Vector, SmallIntVector, TimeStampVector, TimeVector, TinyIntVector, UInt1Vector, UInt2Vector, UInt4Vector, UInt8Vector, UntypedNullVector

public interface FixedWidthVector
extends ValueVector

Nested Class Summary

Nested classes/interfaces inherited from interface org.apache.drill.exec.vector.ValueVector

ValueVector.Accessor, ValueVector.Mutator

Field Summary

Fields inherited from interface org.apache.drill.exec.vector.ValueVector

BITS_VECTOR_NAME, MAX_BUFFER_SIZE, MAX_ROW_COUNT, MIN_ROW_COUNT, OFFSETS_VECTOR_NAME, VALUES_VECTOR_NAME

Method Summary

Modifier and Type	Method and Description
void	allocateNew(int valueCount) Allocate a new memory space for this vector.
int	getValueWidth() The width of a record in bytes.
void	zeroVector() Zero out the underlying buffer backing this vector.

Methods inherited from interface org.apache.drill.exec.vector.ValueVector

allocateNew, allocateNewSafe, clear, close, collectLedgers, copyEntry, exchange, getAccessor, getAllocatedSize, getAllocator, getBuffers, getBufferSize, getBufferSizeFor, getField, getMetadata, getMutator, getPayloadByteCount, getReader, getTransferPair, getTransferPair, getValueCapacity, load, makeTransferPair, setInitialCapacity, toNullable

Methods inherited from interface java.lang.Iterable

forEach, iterator, spliterator

Method Detail

allocateNew

void allocateNew(int valueCount)

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

Parameters:

valueCount - Number of values in the vector.

zeroVector

void zeroVector()

Zero out the underlying buffer backing this vector.

getValueWidth

int getValueWidth()

The width of a record in bytes.

Returns:

The width of a record in bytes.