Scripted Methods
BeanShell is a small, free, embeddable Java source interpreter with object scripting language features,
written in Java. BeanShell is a natural scripting language for Java.
This requires the library bsh-2.0b4.jar to be in classpath.
The following example shows writing scripted methods in beanshell script.
//Plain Java int sumStrict ( int a, int b, int c ) { return a + b + c; } //Loose Java sumLoose ( a, b, c ) { return a + b + c; } int x = sumStrict ( 2 , 4 , 6 ) ; print ( x ) ; y = sumLoose ( 2 , 4 , 6 ) ; print ( y ) ; z = sumLoose ( 1.2 , 2.4 , 3.6 ) ; print ( z ) ; a = sumLoose ( "BE " , "THE " , "CODER" ) ; print ( a ) ; b = sumLoose ( "Name : " , name, " " + date ) ; print ( b ) ;
package com.bethecoder.tutorials.bean_shell; import java.io.InputStreamReader; import java.util.Date; import bsh.EvalError; import bsh.Interpreter; public class ScriptedMethodsTest { /** * @param args * @throws EvalError */ public static void main ( String [] args ) throws EvalError { Interpreter interpreter = new Interpreter () ; interpreter.set ( "name" , "Sriram" ) ; interpreter.set ( "date" , new Date ()) ; InputStreamReader reader = new InputStreamReader ( ScriptedMethodsTest. class .getClassLoader () .getResourceAsStream ( "scripted_meth.bsh" )) ; interpreter.eval ( reader ) ; } }
12
12
7.199999999999999
BE THE CODER
Name : Sriram Sun Dec 04 01:01:10 IST 2011
