org.apache.drill.exec.record

Class VectorAccessibleComplexWriter

java.lang.Object

org.apache.drill.exec.vector.complex.AbstractContainerVector

org.apache.drill.exec.vector.complex.AbstractMapVector

org.apache.drill.exec.vector.complex.MapVector

org.apache.drill.exec.record.VectorAccessibleComplexWriter

All Implemented Interfaces:

Closeable, AutoCloseable, Iterable<ValueVector>, ValueVector

public class VectorAccessibleComplexWriter
extends MapVector

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.drill.exec.vector.complex.MapVector

MapVector.Accessor, MapVector.MapTransferPair, MapVector.Mutator

Field Summary

Fields inherited from class org.apache.drill.exec.vector.complex.MapVector

TYPE

Fields inherited from class org.apache.drill.exec.vector.complex.AbstractContainerVector

allocator, callBack, field

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

Constructor Summary

Constructors

Constructor and Description
VectorAccessibleComplexWriter(VectorContainer vc)

Method Summary

Modifier and Type	Method and Description
<T extends ValueVector> T	addOrGet(String name, TypeProtos.MajorType type, Class<T> clazz) Adds a new field with the given parameters or replaces the existing one and consequently returns the resultant ValueVector.
static BaseWriter.ComplexWriter	getWriter(String name, VectorContainer container)

Methods inherited from class org.apache.drill.exec.vector.complex.MapVector

clear, close, copyEntry, copyFromSafe, copyFromSafe, exchange, fieldNameIterator, getAccessor, getAllocatedSize, getBuffers, getBufferSize, getBufferSizeFor, getMetadata, getMutator, getReader, getTransferPair, getTransferPair, getValueCapacity, getVectorById, load, makeTransferPair, setInitialCapacity, setMapValueCount, supportsDirectRead, toNullable

Methods inherited from class org.apache.drill.exec.vector.complex.AbstractMapVector

allocateNewSafe, collectLedgers, getChild, getChildByOrdinal, getChildren, getChildVectorWithOrdinal, getPayloadByteCount, getPrimitiveVectors, iterator, putChild, putVector, size

Methods inherited from class org.apache.drill.exec.vector.complex.AbstractContainerVector

allocateNew, getAllocator, getChild, getChildFieldNames, getField, typeify

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.lang.Iterable

forEach, spliterator

Constructor Detail

VectorAccessibleComplexWriter

public VectorAccessibleComplexWriter(VectorContainer vc)

Method Detail

addOrGet

public <T extends ValueVector> T addOrGet(String name,
                                          TypeProtos.MajorType type,
                                          Class<T> clazz)

Description copied from class: AbstractMapVector

Adds a new field with the given parameters or replaces the existing one and consequently returns the resultant ValueVector. Execution takes place in the following order:

• if field is new, create and insert a new vector of desired type.
• if field exists and existing vector is of desired vector type, return the vector.
• if field exists and null filled, clear the existing vector; create and insert a new vector of desired type.
• otherwise, throw an IllegalStateException

Overrides:

addOrGet in class AbstractMapVector

Type Parameters:

T - class type of expected vector type

Parameters:

name - name of the field

type - type of the field

clazz - class of expected vector type

Returns:

resultant ValueVector

getWriter

public static BaseWriter.ComplexWriter getWriter(String name,
                                                 VectorContainer container)