Package com.exasol.sql.expression.comparison

Class AbstractComparison

java.lang.Object

com.exasol.sql.expression.AbstractBooleanExpression

com.exasol.sql.expression.comparison.AbstractComparison

All Implemented Interfaces:

BooleanExpression, Comparison, ValueExpression

Direct Known Subclasses:

LikeComparison, SimpleComparison

public abstract class AbstractComparison
extends AbstractBooleanExpression
implements Comparison

Abstract basis for comparisons.

Field Summary

Fields

Modifier and Type	Field	Description
protected ValueExpression	leftOperand	left part of the comparison
protected ComparisonOperator	operator	comparison operator
protected ValueExpression	rightOperand	right part of the comparison

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	AbstractComparison(ComparisonOperator comparisonOperator, ValueExpression leftOperand, ValueExpression rightOperand)	Create a new instance of AbstractComparison.

Method Summary

Modifier and Type	Method	Description
void	accept(BooleanExpressionVisitor visitor)	Accept a visitor
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

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.exasol.sql.expression.comparison.Comparison

accept

Methods inherited from interface com.exasol.sql.expression.ValueExpression

accept

Field Detail

operator

protected final ComparisonOperator operator

comparison operator

leftOperand

protected final ValueExpression leftOperand

left part of the comparison

rightOperand

protected final ValueExpression rightOperand

right part of the comparison

Constructor Detail

AbstractComparison

protected AbstractComparison(ComparisonOperator comparisonOperator,
                             ValueExpression leftOperand,
                             ValueExpression rightOperand)

Create a new instance of AbstractComparison.

Parameters:

comparisonOperator - comparison operator

leftOperand - left-hand side operator of the comparison

rightOperand - right-hand side operator of the comparison

Method Detail

getLeftOperand

public ValueExpression getLeftOperand()

Get the left-hand side operator of the comparison

Specified by:

getLeftOperand in interface Comparison

Returns:

left operator

getRightOperand

public ValueExpression getRightOperand()

Get the right-hand side operator of the comparison

Specified by:

getRightOperand in interface Comparison

Returns:

right operator

getOperator

public ComparisonOperator getOperator()

Get the comparison operator

Specified by:

getOperator in interface Comparison

Returns:

comparison operator

accept

public void accept(BooleanExpressionVisitor visitor)

Description copied from interface: BooleanExpression

Accept a visitor

Specified by:

accept in interface BooleanExpression

Parameters:

visitor - visitor to accept