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

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

All Implemented Interfaces:

ComparatorExpression, Serializable

public class NopComparatorExpression

extends Object

implements ComparatorExpression

ComparatorExpression that does nothing.

Since:

1.1

Author:

Rein Raudjärv

See Also:

Serialized Form

Constructor Summary

NopComparatorExpression()

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.

Methods inherited from class java.lang.Object

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

Constructor Detail

NopComparatorExpression

public NopComparatorExpression()

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.