org.jfree.formula.operators
Class AbstractCompareOperator

java.lang.Object
  org.jfree.formula.operators.AbstractCompareOperator

All Implemented Interfaces:

java.io.Serializable, InfixOperator

Direct Known Subclasses:

GreaterEqualOperator, GreaterOperator, LesserEqualOperator, LesserOperator

public abstract class AbstractCompareOperator
extends java.lang.Object
implements InfixOperator

Creation-Date: 06.06.2007, 18:52:25

Author:

Thomas Morgner

See Also:

Serialized Form

Constructor Summary

AbstractCompareOperator()

Method Summary

TypeValuePair	evaluate(FormulaContext context, TypeValuePair value1, TypeValuePair value2) Evaluates the comptuation for both parameters.
protected abstract boolean	evaluate(int compareResult)

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.jfree.formula.operators.InfixOperator

getLevel, isAssociative, isLeftOperation

Constructor Detail

AbstractCompareOperator

public AbstractCompareOperator()

Method Detail

evaluate

public final TypeValuePair evaluate(FormulaContext context,
                                    TypeValuePair value1,
                                    TypeValuePair value2)
                             throws EvaluationException

Description copied from interface: InfixOperator

Evaluates the comptuation for both parameters. This method must never return null.

Specified by:

evaluate in interface InfixOperator

Returns:

Throws:

EvaluationException

evaluate

protected abstract boolean evaluate(int compareResult)