org.apache.drill.exec.vector.accessor.reader

Class DictEntryReader

java.lang.Object

org.apache.drill.exec.vector.accessor.reader.AbstractTupleReader

org.apache.drill.exec.vector.accessor.reader.DictEntryReader

All Implemented Interfaces:

ColumnReader, ReaderEvents, TupleReader

public class DictEntryReader
extends AbstractTupleReader

Reader for a Dict entry. The entry is a special kind of tuple.

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.drill.exec.vector.accessor.reader.AbstractTupleReader

AbstractTupleReader.TupleObjectReader

Field Summary

Fields inherited from class org.apache.drill.exec.vector.accessor.reader.AbstractTupleReader

nullStateReader, readers

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	DictEntryReader(ColumnMetadata schema, VectorAccessor accessor, AbstractObjectReader[] readers)

Method Summary

Modifier and Type	Method and Description
void	bindIndex(ColumnReaderIndex index)
static AbstractTupleReader.TupleObjectReader	build(ColumnMetadata schema, VectorAccessor accessor, AbstractObjectReader[] readers)
static AbstractTupleReader.TupleObjectReader	build(ColumnMetadata schema, VectorAccessor accessor, List<AbstractObjectReader> readers)
AbstractObjectReader	keyReader()
ColumnMetadata	schema()
TupleMetadata	tupleSchema()
AbstractObjectReader	valueReader()

Methods inherited from class org.apache.drill.exec.vector.accessor.reader.AbstractTupleReader

array, array, bindBuffer, bindNullState, column, column, columnCount, dict, dict, getAsString, getObject, isNull, nullStateReader, reposition, scalar, scalar, tuple, tuple, type, type, type, variant, variant

Methods inherited from class java.lang.Object

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

Constructor Detail

DictEntryReader

protected DictEntryReader(ColumnMetadata schema,
                          VectorAccessor accessor,
                          AbstractObjectReader[] readers)

Method Detail

build

public static AbstractTupleReader.TupleObjectReader build(ColumnMetadata schema,
                                                          VectorAccessor accessor,
                                                          AbstractObjectReader[] readers)

build

public static AbstractTupleReader.TupleObjectReader build(ColumnMetadata schema,
                                                          VectorAccessor accessor,
                                                          List<AbstractObjectReader> readers)

keyReader

public AbstractObjectReader keyReader()

valueReader

public AbstractObjectReader valueReader()

bindIndex

public void bindIndex(ColumnReaderIndex index)

Specified by:

bindIndex in interface ReaderEvents

Overrides:

bindIndex in class AbstractTupleReader

schema

public ColumnMetadata schema()

tupleSchema

public TupleMetadata tupleSchema()