com.metasolutions.jfcml.helpers
Class BSFHandler

java.lang.Object
  com.metasolutions.jfcml.helpers.DocumentHandler
      com.metasolutions.jfcml.helpers.BSFHandler

All Implemented Interfaces:

Serializable

public class BSFHandler
extends DocumentHandler

Provides Reflective access to the Bean Scripting Framework.

Version:

0.9 Jun 1, 2005

Author:

Shawn Curry

See Also:

Serialized Form

Field Summary

Fields inherited from class com.metasolutions.jfcml.helpers.DocumentHandler

windowContext

Constructor Summary

BSFHandler(WindowContext context)

Method Summary

Object	eval(String spec)
Object	eval(String lang, String stmt) Evaluate a lexical statement in the given scripting engine.
Object	get(String symbol) Gets a previously registered variable.
boolean	isBSFConnected()
boolean	loadScriptingEngine(String engineName) Loads a scripting engine by the specified name.
boolean	set(String symbol, Object value) Registers a variable in all currently loaded scripting languages.

Methods inherited from class com.metasolutions.jfcml.helpers.DocumentHandler

getWindowContext, setWindowContext

Methods inherited from class java.lang.Object

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

Constructor Detail

BSFHandler

public BSFHandler(WindowContext context)

Method Detail

loadScriptingEngine

public boolean loadScriptingEngine(String engineName)

Loads a scripting engine by the specified name.

Parameters:

engineName - the name of the scripting language, as known to BSF

Returns:

true if the scripting engine can be loaded, false if it cannot.

isBSFConnected

public boolean isBSFConnected()

get

public Object get(String symbol)

Gets a previously registered variable.

Parameters:

symbol - the variable name

Returns:

the variable, if it exists, or null if it does not.

set

public boolean set(String symbol,
                   Object value)

Registers a variable in all currently loaded scripting languages.

Parameters:

symbol - name of the variable

value - the variable

Returns:

true, if the variable was successfully set, false if it was not.

eval

public Object eval(String spec)

eval

public Object eval(String lang,
                   String stmt)

Evaluate a lexical statement in the given scripting engine.

Parameters:

lang - the language to use

stmt - the expression to parse

Returns:

the result of the expression, or null if it could not be evaluated.