org.pentaho.reporting.libraries.formula.operators

Class MultiplyOperator

public class MultiplyOperator extends AbstractNumericOperator

Creation-Date: 31.10.2006, 16:34:11

Author: Thomas Morgner

Constructor Summary
	MultiplyOperator()

Method Summary
protected Number	evaluate(Number number1, Number number2)
int	getLevel()
boolean	isAssociative() Defines, whether the operation is associative.
boolean	isLeftOperation()
String	toString()

Method Detail

evaluate

protected Number evaluate(Number number1, Number number2)

Defines, whether the operation is associative. For associative operations, the evaluation order does not matter, if the operation appears more than once in an expression, and therefore we can optimize them a lot better than non-associative operations (ie. merge constant parts and precompute them once).

Returns: true, if the operation is associative, false otherwise

isLeftOperation

public boolean isLeftOperation()

toString

public String toString()