Application: gvSIG desktop

package com.iver.cit.gvsig.project.documents.table.operators;

import org.apache.bsf.BSFException;

import org.apache.bsf.BSFManager;

import com.iver.cit.gvsig.ExpresionFieldExtension;

import com.iver.cit.gvsig.project.documents.table.AbstractOperator;

import com.iver.cit.gvsig.project.documents.table.IOperator;

/**

 * @author Vicente Caballero Navarro

 */

public class Abs extends AbstractOperator{

        public String addText(String s) {

                return toString()+"("+s+")";

        }

        public String toString() {

                return "abs";

        }

        public void eval(BSFManager interpreter) throws BSFException {

                interpreter.eval(ExpresionFieldExtension.BEANSHELL,null,-1,-1,"double abs(double value){return java.lang.Math.abs(value);};");

        }

        public boolean isEnable() {

                return (getType()==IOperator.NUMBER);

        }

        public double abs(double value) {

                return java.lang.Math.abs(value);

        }

}