org.apache.drill.exec.physical.impl.project

Class ProjectBatchBuilder

java.lang.Object

org.apache.drill.exec.physical.impl.project.ProjectBatchBuilder

All Implemented Interfaces:

org.apache.drill.exec.physical.impl.project.ProjectionMaterializer.BatchBuilder

public class ProjectBatchBuilder
extends Object
implements org.apache.drill.exec.physical.impl.project.ProjectionMaterializer.BatchBuilder

Implements callbacks to build the physical vectors for the project record batch.

Constructor Summary

Constructors

Constructor and Description
ProjectBatchBuilder(ProjectRecordBatch projectBatch, VectorContainer container, SchemaChangeCallBack callBack, RecordBatch incomingBatch)

Method Summary

Modifier and Type	Method and Description
void	addComplexField(FieldReference ref)
int	addDirectTransfer(FieldReference ref, ValueVectorReadExpression vectorRead)
ValueVectorWriteExpression	addEvalVector(String outputName, LogicalExpression expr)
ValueVectorWriteExpression	addOutputVector(String name, LogicalExpression expr)
void	addTransferField(String name, ValueVector vvIn)
List<TransferPair>	transfers()

Methods inherited from class java.lang.Object

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

Constructor Detail

ProjectBatchBuilder

public ProjectBatchBuilder(ProjectRecordBatch projectBatch,
                           VectorContainer container,
                           SchemaChangeCallBack callBack,
                           RecordBatch incomingBatch)

Method Detail

transfers

public List<TransferPair> transfers()

addTransferField

public void addTransferField(String name,
                             ValueVector vvIn)

Specified by:

addTransferField in interface org.apache.drill.exec.physical.impl.project.ProjectionMaterializer.BatchBuilder

addDirectTransfer

public int addDirectTransfer(FieldReference ref,
                             ValueVectorReadExpression vectorRead)

Specified by:

addDirectTransfer in interface org.apache.drill.exec.physical.impl.project.ProjectionMaterializer.BatchBuilder

addOutputVector

public ValueVectorWriteExpression addOutputVector(String name,
                                                  LogicalExpression expr)

Specified by:

addOutputVector in interface org.apache.drill.exec.physical.impl.project.ProjectionMaterializer.BatchBuilder

addComplexField

public void addComplexField(FieldReference ref)

Specified by:

addComplexField in interface org.apache.drill.exec.physical.impl.project.ProjectionMaterializer.BatchBuilder

addEvalVector

public ValueVectorWriteExpression addEvalVector(String outputName,
                                                LogicalExpression expr)

Specified by:

addEvalVector in interface org.apache.drill.exec.physical.impl.project.ProjectionMaterializer.BatchBuilder