org.tikv.common.expression

Class Expression

java.lang.Object

org.tikv.common.expression.Expression

All Implemented Interfaces:

Serializable

Direct Known Subclasses:

AggregateFunction, ArithmeticBinaryExpression, ColumnRef, ComparisonBinaryExpression, Constant, FuncCallExpr, IsNull, LogicalBinaryExpression, Not, StringRegExpression

public abstract class Expression
extends Object
implements Serializable

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
protected DataType	dataType
protected boolean	resolved

Constructor Summary

Constructors

Constructor and Description
Expression()
Expression(DataType dataType)

Method Summary

Modifier and Type	Method and Description
abstract <R,C> R	accept(Visitor<R,C> visitor, C context)
abstract List<Expression>	getChildren()
DataType	getDataType()
boolean	isResolved()
void	setDataType(DataType dataType)

Methods inherited from class java.lang.Object

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

Field Detail

dataType

protected DataType dataType

resolved

protected boolean resolved

Constructor Detail

Expression

public Expression(DataType dataType)

Expression

public Expression()

Method Detail

getChildren

public abstract List<Expression> getChildren()

accept

public abstract <R,C> R accept(Visitor<R,C> visitor,
                               C context)

isResolved

public boolean isResolved()

getDataType

public DataType getDataType()

setDataType

public void setDataType(DataType dataType)