org.apache.drill.exec.vector.complex

Interface ContainerVectorLike

All Known Subinterfaces:

RepeatedValueVector

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 ContainerVectorLike

A mix-in used for introducing container vector-like behaviour.

Method Summary

Modifier and Type	Method and Description
<T extends ValueVector> AddOrGetResult<T>	addOrGetVector(VectorDescriptor descriptor) Creates and adds a child vector if none with the same name exists, else returns the vector instance.
int	size() Returns the number of child vectors in this container vector-like instance.

Method Detail

addOrGetVector

<T extends ValueVector> AddOrGetResult<T> addOrGetVector(VectorDescriptor descriptor)

Creates and adds a child vector if none with the same name exists, else returns the vector instance.

Parameters:

descriptor - vector descriptor

Returns:

result of operation wrapping vector corresponding to the given descriptor and whether it's newly created

Throws:

DrillRuntimeException - if schema change is not permissible between the given and existing data vector types.

size

int size()

Returns the number of child vectors in this container vector-like instance.