org.araneaframework.backend.list.memorybased.compexpr
Class ReverseComparatorExpression

java.lang.Object
  org.araneaframework.backend.list.memorybased.compexpr.ReverseComparatorExpression

All Implemented Interfaces:

ComparatorExpression, CompositeComparatorExpression, Serializable

public class ReverseComparatorExpression

extends Object

implements CompositeComparatorExpression

ComparatorExpression that reverses another ComparatorExpression comparation result.

See Also:

Serialized Form

Field Summary

protected ComparatorExpression

expression

Constructor Summary

ReverseComparatorExpression(ComparatorExpression expression)

Method Summary

int	compare(VariableResolver resolver1, VariableResolver resolver2) Returns a negative integer, zero, or a positive integer as the first Variable is less than, equal to, or greater than the second.
ComparatorExpression[]	getChildren()

Methods inherited from class java.lang.Object

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

Field Detail

expression

protected ComparatorExpression expression

Constructor Detail

ReverseComparatorExpression

public ReverseComparatorExpression(ComparatorExpression expression)

Method Detail

compare

public int compare(VariableResolver resolver1,
                   VariableResolver resolver2)
            throws ExpressionEvaluationException

Description copied from interface: ComparatorExpression

Returns a negative integer, zero, or a positive integer as the first Variable is less than, equal to, or greater than the second.

Specified by:

compare in interface ComparatorExpression

Parameters:

resolver1 - Resolver that is used to evalute the first Variable.

resolver2 - Resolver that is used to evalute the second Variable.

Returns:

a negative integer, zero, or a positive integer as the first Variable is less than, equal to, or greater than the second.

Throws:

ExpressionEvaluationException - when the comparation fails.

getChildren

public ComparatorExpression[] getChildren()

Specified by:

getChildren in interface CompositeComparatorExpression