| gvSIG desktop 1

package org.gvsig.operators;

import org.apache.bsf.BSFException;

import org.apache.bsf.BSFManager;

import org.gvsig.baseclasses.AbstractOperator;

import org.gvsig.baseclasses.IOperator;

import org.gvsig.expresions.EvalOperatorsTask;

/**

 * @author Vicente Caballero Navarro

 */

public class Length extends AbstractOperator{

        public String addText(String s) {

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

        }

        public String toString() {

                return "length";

        }

        public void eval(BSFManager interpreter) throws BSFException {

//                interpreter.eval(ExpressionFieldExtension.BEANSHELL,null,-1,-1,"int length(String value){return value.length();};");

                interpreter.exec(EvalOperatorsTask.JYTHON,null,-1,-1,"def length(value):\n" +

                                "  return len(value)");

        }

        public boolean isEnable() {

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

        }

        public String getDescription() {

            return  "parameter" + ": " +

             "string_value" + "\n" +

             "returns" + ": " +

             "numeric_value" + "\n" +

             "description" + ": " +

            "Returns the length of string parameter.";

        }

}