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

Class OutputWidthExpression.VarLenReadExpr

java.lang.Object

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

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

Enclosing class:

OutputWidthExpression

public static class OutputWidthExpression.VarLenReadExpr
extends OutputWidthExpression

VarLenReadExpr captures the inputColumnName and the readExpression used to read a variable length column. The captured inputColumnName will be used to lookup the average entry size for the column in the corresponding. If inputColumnName is null then the readExpression is used to get the name of the column. RecordBatchSizer

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.drill.exec.physical.impl.project.OutputWidthExpression

OutputWidthExpression.FixedLenExpr, OutputWidthExpression.FunctionCallExpr, OutputWidthExpression.IfElseWidthExpr, OutputWidthExpression.VarLenReadExpr

Constructor Summary

Constructors

Constructor	Description
VarLenReadExpr(String inputColumnName)
VarLenReadExpr(ValueVectorReadExpression readExpression)

Method Summary

Modifier and Type	Method	Description
<T, V, E extends Exception> T	accept(AbstractExecExprVisitor<T,V,E> visitor, V value)
String	getInputColumnName()
ValueVectorReadExpression	getReadExpression()

Methods inherited from class java.lang.Object

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

Constructor Details

VarLenReadExpr

public VarLenReadExpr(ValueVectorReadExpression readExpression)

VarLenReadExpr

public VarLenReadExpr(String inputColumnName)

Method Details

getReadExpression

public ValueVectorReadExpression getReadExpression()

getInputColumnName

public String getInputColumnName()

accept

public <T,
V,
E extends Exception> T accept(AbstractExecExprVisitor<T,V,E> visitor,
 V value)
                                   throws E

Throws:

E extends Exception