org.apache.drill.exec.vector.complex

Interface RepeatedValueVector

All Superinterfaces:

AutoCloseable, Closeable, ContainerVectorLike, Iterable<ValueVector>, ValueVector

All Known Implementing Classes:

AbstractRepeatedMapVector, BaseRepeatedValueVector, DictVector, ListVector, RepeatedBigIntVector, RepeatedBitVector, RepeatedDateVector, RepeatedDecimal18Vector, RepeatedDecimal28DenseVector, RepeatedDecimal28SparseVector, RepeatedDecimal38DenseVector, RepeatedDecimal38SparseVector, RepeatedDecimal9Vector, RepeatedDictVector, RepeatedFloat4Vector, RepeatedFloat8Vector, RepeatedIntervalDayVector, RepeatedIntervalVector, RepeatedIntervalYearVector, RepeatedIntVector, RepeatedListVector, RepeatedListVector.DelegateRepeatedVector, RepeatedMapVector, RepeatedSmallIntVector, RepeatedTimeStampVector, RepeatedTimeVector, RepeatedTinyIntVector, RepeatedUInt1Vector, RepeatedUInt2Vector, RepeatedUInt4Vector, RepeatedUInt8Vector, RepeatedVar16CharVector, RepeatedVarBinaryVector, RepeatedVarCharVector, RepeatedVarDecimalVector

public interface RepeatedValueVector
extends ValueVector, ContainerVectorLike

Represents repeated (AKA "array") value vectors.

A repeated vector contains values that may either be flat or nested. A value consists of zero or more cells(inner values). Current design maintains data and offsets vectors. Each cell is stored in the data vector. Repeated vector uses the offset vector to determine the sequence of cells pertaining to an individual value.

Nested Class Summary

Nested Classes

Modifier and Type	Interface and Description
static interface	RepeatedValueVector.RepeatedAccessor
static interface	RepeatedValueVector.RepeatedMutator

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

ValueVector.Accessor, ValueVector.Mutator

Field Summary

Fields

Modifier and Type	Field and Description
static int	DEFAULT_REPEAT_PER_RECORD

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
RepeatedValueVector.RepeatedAccessor	getAccessor() Returns an accessor that is used to read from this vector instance.
ValueVector	getDataVector()
RepeatedValueVector.RepeatedMutator	getMutator() Returns an mutator that is used to write to this vector instance.
UInt4Vector	getOffsetVector()

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

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

Methods inherited from interface java.lang.Iterable

forEach, iterator, spliterator

Methods inherited from interface org.apache.drill.exec.vector.complex.ContainerVectorLike

addOrGetVector, size

Field Detail

DEFAULT_REPEAT_PER_RECORD

static final int DEFAULT_REPEAT_PER_RECORD

See Also:

Constant Field Values

Method Detail

getOffsetVector

UInt4Vector getOffsetVector()

Returns:

the underlying offset vector or null if none exists.

getDataVector

ValueVector getDataVector()

Returns:

the underlying data vector or null if none exists.

getAccessor

RepeatedValueVector.RepeatedAccessor getAccessor()

Description copied from interface: ValueVector

Returns an accessor that is used to read from this vector instance.

Specified by:

getAccessor in interface ValueVector

getMutator

RepeatedValueVector.RepeatedMutator getMutator()

Description copied from interface: ValueVector

Returns an mutator that is used to write to this vector instance.

Specified by:

getMutator in interface ValueVector