Package org.apache.drill.exec.physical.resultSet.impl

Class ColumnState.PrimitiveColumnState

java.lang.Object

org.apache.drill.exec.physical.resultSet.impl.ColumnState

org.apache.drill.exec.physical.resultSet.impl.ColumnState.PrimitiveColumnState

All Implemented Interfaces:

WriterEvents.ColumnWriterListener

Enclosing class:

ColumnState

public static class ColumnState.PrimitiveColumnState
extends ColumnState
implements WriterEvents.ColumnWriterListener

Primitive (non-map) column state. Handles all three cardinalities. Column metadata is hosted on the writer.

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.drill.exec.physical.resultSet.impl.ColumnState

ColumnState.BaseContainerColumnState, ColumnState.PrimitiveColumnState, ColumnState.State

Field Summary

Fields inherited from class org.apache.drill.exec.physical.resultSet.impl.ColumnState

addVersion, cardinality, loader, outputIndex, state, vectorState, writer

Constructor Summary

Constructors

Constructor	Description
PrimitiveColumnState(org.apache.drill.exec.physical.resultSet.impl.LoaderInternals loader, AbstractObjectWriter colWriter, VectorState vectorState)

Method Summary

Modifier and Type	Method	Description
boolean	canExpand(ScalarWriter writer, int delta)
void	dump(HierarchicalFormatter format)
ColumnMetadata	outputSchema()	Get the output schema.
void	overflowed(ScalarWriter writer)

Methods inherited from class org.apache.drill.exec.physical.resultSet.impl.ColumnState

allocateVectors, buildOutput, close, harvestWithLookAhead, innerCardinality, isProjected, outerCardinality, rollover, schema, startBatch, updateCardinality, vector, vectorState, writer

Methods inherited from class java.lang.Object

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

Constructor Details

PrimitiveColumnState

public PrimitiveColumnState(org.apache.drill.exec.physical.resultSet.impl.LoaderInternals loader,
 AbstractObjectWriter colWriter,
 VectorState vectorState)

Method Details

canExpand

public boolean canExpand(ScalarWriter writer,
 int delta)

Specified by:

canExpand in interface WriterEvents.ColumnWriterListener

overflowed

public void overflowed(ScalarWriter writer)

Specified by:

overflowed in interface WriterEvents.ColumnWriterListener

outputSchema

public ColumnMetadata outputSchema()

Get the output schema. For a primitive (non-structured) column, the output schema is the same as the internal schema.

Specified by:

outputSchema in class ColumnState

dump

public void dump(HierarchicalFormatter format)

Overrides:

dump in class ColumnState