Package org.apache.drill.common.expression

Class ConvertExpression

java.lang.Object

org.apache.drill.common.expression.LogicalExpressionBase

org.apache.drill.common.expression.ConvertExpression

All Implemented Interfaces:

Iterable<LogicalExpression>, LogicalExpression

public class ConvertExpression
extends LogicalExpressionBase
implements Iterable<LogicalExpression>

Nested Class Summary

Nested classes/interfaces inherited from interface org.apache.drill.common.expression.LogicalExpression

LogicalExpression.De, LogicalExpression.Se

Field Summary

Fields

Modifier and Type	Field	Description
static final String	CONVERT_FROM
static final String	CONVERT_TO

Constructor Summary

Constructors

Constructor	Description
ConvertExpression(String convertFunction, String encodingType, LogicalExpression input, ExpressionPosition pos)

Method Summary

Modifier and Type	Method	Description
<T, V, E extends Exception> T	accept(ExprVisitor<T,V,E> visitor, V value)
String	getConvertFunction()
String	getEncodingType()
LogicalExpression	getInput()
TypeProtos.MajorType	getMajorType()
Iterator<LogicalExpression>	iterator()
String	toString()

Methods inherited from class org.apache.drill.common.expression.LogicalExpressionBase

getCumulativeCost, getDescription, getPosition, getSelfCost, i

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.lang.Iterable

forEach, spliterator

Field Details

CONVERT_FROM

public static final String CONVERT_FROM

See Also:

• Constant Field Values

CONVERT_TO

public static final String CONVERT_TO

See Also:

• Constant Field Values

Constructor Details

ConvertExpression

public ConvertExpression(String convertFunction,
 String encodingType,
 LogicalExpression input,
 ExpressionPosition pos)

Parameters:

convertFunction -

encodingType -

input -

pos -

Method Details

accept

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

Specified by:

accept in interface LogicalExpression

Throws:

E

iterator

public Iterator<LogicalExpression> iterator()

Specified by:

iterator in interface Iterable<LogicalExpression>

getConvertFunction

public String getConvertFunction()

getInput

public LogicalExpression getInput()

getMajorType

public TypeProtos.MajorType getMajorType()

Specified by:

getMajorType in interface LogicalExpression

Overrides:

getMajorType in class LogicalExpressionBase

getEncodingType

public String getEncodingType()

toString

public String toString()

Overrides:

toString in class Object