Package com.exasol.sql.expression

Class Comparison

java.lang.Object

com.exasol.util.AbstractTree

com.exasol.util.AbstractBottomUpTreeNode

com.exasol.sql.expression.AbstractBooleanExpression

com.exasol.sql.expression.Comparison

All Implemented Interfaces:

BooleanExpression, ValueExpression, TreeNode

public class Comparison
extends AbstractBooleanExpression

Field Summary

Fields inherited from class com.exasol.util.AbstractTree

children, parent

Constructor Summary

Constructors

Constructor	Description
Comparison(ComparisonOperator comparisonOperator, ValueExpression leftOperand, ValueExpression rightOperand)

Method Summary

Modifier and Type	Method	Description
void	acceptConcrete(BooleanExpressionVisitor visitor)	Sub-classes must override this method so that the visitor knows the type of the visited class at compile time.
void	dismissConcrete(BooleanExpressionVisitor visitor)	Sub-classes must override this method so that the visitor knows the type of the visited class at compile time.
ValueExpression	getLeftOperand()	Get the left-hand side operator of the comparison
ComparisonOperator	getOperator()	Get the comparison operator
ValueExpression	getRightOperand()	Get the right-hand side operator of the comparison

Methods inherited from class com.exasol.sql.expression.AbstractBooleanExpression

accept, accept

Methods inherited from class com.exasol.util.AbstractBottomUpTreeNode

addChild, getRoot, setParent

Methods inherited from class com.exasol.util.AbstractTree

getChild, getChildren, getParent, isChild, isFirstSibling, isRoot, isSibling

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.exasol.util.TreeNode

addChild, getChild, getChildren, getParent, getRoot, isChild, isFirstSibling, isRoot, isSibling, setParent

Constructor Detail

Comparison

public Comparison(ComparisonOperator comparisonOperator,
                  ValueExpression leftOperand,
                  ValueExpression rightOperand)

Method Detail

acceptConcrete

public void acceptConcrete(BooleanExpressionVisitor visitor)

Description copied from class: AbstractBooleanExpression

Sub-classes must override this method so that the visitor knows the type of the visited class at compile time.

Specified by:

acceptConcrete in class AbstractBooleanExpression

Parameters:

visitor - visitor to accept

dismissConcrete

public void dismissConcrete(BooleanExpressionVisitor visitor)

Description copied from class: AbstractBooleanExpression

Sub-classes must override this method so that the visitor knows the type of the visited class at compile time.

Specified by:

dismissConcrete in class AbstractBooleanExpression

Parameters:

visitor - visitor to accept

getLeftOperand

public ValueExpression getLeftOperand()

Get the left-hand side operator of the comparison

Returns:

left operator

getRightOperand

public ValueExpression getRightOperand()

Get the right-hand side operator of the comparison

Returns:

right operator

getOperator

public ComparisonOperator getOperator()

Get the comparison operator

Returns:

comparison operator