Inheritance diagram for metadone.metabusiness.script.js.JSEvaluator:

Collaboration diagram for metadone.metabusiness.script.js.JSEvaluator:

Public Member Functions
	JSEvaluator ()
void	declareVariable (String name, Object value)
void	clearVariables ()
void	reset ()
synchronized ScriptResult	evaluate (String script)
final ProgLanguage	getLanguage ()
String	toString ()
Static Public Attributes
static final String	WRAP_COLLECTIONS = "wrap.collections"
static final String	COMPILER_OPTIMIZATION_LEVEL = "compiler.optimization_level"
Protected Member Functions
Object	getSecurityDomain ()
synchronized void	checkConfiguration () throws Exception
void	initContext (Context cx)
ScriptableObject	createScope (Context cx)
void	updateScope (Context cx, Scriptable scope)
synchronized Context	enterContext ()
synchronized void	exitContext ()
synchronized Scriptable	getScope ()
Protected Attributes
final Map< String, Object >	variables = new HashMap<String, Object>()
Private Attributes
volatile Context	jsContext = null
volatile Scriptable	jsScope = null
volatile boolean	jsUpdateScope = true
Static Private Attributes
static final Logger	logger = Logger.getLogger(JSEvaluator.class)

Detailed Description

A JavaScript evaluator based on Rhino.

Author:: kma

Constructor & Destructor Documentation

metadone.metabusiness.script.js.JSEvaluator.JSEvaluator ( )

Initializes this evaluator.

References metadone.metabusiness.script.js.JSEvaluator.COMPILER_OPTIMIZATION_LEVEL, and metadone.metabusiness.script.ScriptEvaluator.Abstract.properties().

Member Function Documentation

synchronized void metadone.metabusiness.script.js.JSEvaluator.checkConfiguration ( ) throws Exception [protected]

Checks the configuration before running a script.

Exceptions:

Exception when the class is not configured properly

Referenced by metadone.metabusiness.script.js.JSEvaluator.evaluate().

void metadone.metabusiness.script.js.JSEvaluator.clearVariables ( )

Removes all the previously declared variables.

Implements metadone.metabusiness.script.ScriptEvaluator.

References metadone.metabusiness.script.js.JSEvaluator.jsUpdateScope, and metadone.metabusiness.script.js.JSEvaluator.variables.

Referenced by metadone.metabusiness.script.js.JSEvaluator.reset().

ScriptableObject metadone.metabusiness.script.js.JSEvaluator.createScope ( Context cx ) [protected]

Creates and updates a new scope.

Parameters:

cx	The context

Returns:: A new updated scope

References metadone.metabusiness.script.js.JSEvaluator.updateScope().

Referenced by metadone.metabusiness.script.js.JSEvaluator.getScope().

void metadone.metabusiness.script.js.JSEvaluator.declareVariable	(	String	name,
		Object	value
	)

Declares a new variable called name and sets it to value.

updateContext() should be called afterwards.

Parameters:

name	The name of the variable
value	The new value

Exceptions:

NullPointerException when name is null

Implements metadone.metabusiness.script.ScriptEvaluator.

References metadone.metabusiness.script.js.JSEvaluator.jsUpdateScope, and metadone.metabusiness.script.js.JSEvaluator.variables.

synchronized Context metadone.metabusiness.script.js.JSEvaluator.enterContext ( ) [protected]

Gets the context used by the evaluator.

Returns:: An initialized context

References metadone.metabusiness.script.js.JSEvaluator.initContext(), and metadone.metabusiness.script.js.JSEvaluator.jsContext.

Referenced by metadone.metabusiness.script.js.JSEvaluator.evaluate().

synchronized ScriptResult metadone.metabusiness.script.js.JSEvaluator.evaluate ( String script )

Evaluates a script and returns a result.

Parameters:

script The script to evaluate

Returns:: A ScriptResult

Exceptions:

NullPointerException when script is null

Implements metadone.metabusiness.script.ScriptEvaluator.

References metadone.metabusiness.script.js.JSEvaluator.checkConfiguration(), metadone.metabusiness.script.js.JSEvaluator.enterContext(), metadone.metabusiness.script.js.JSEvaluator.exitContext(), metadone.metabusiness.script.js.JSEvaluator.getScope(), metadone.metabusiness.script.js.JSEvaluator.getSecurityDomain(), metadone.metabusiness.script.js.JSEvaluator.logger, and metadone.metabusiness.script.js.JSEvaluator.toString().

synchronized void metadone.metabusiness.script.js.JSEvaluator.exitContext ( ) [protected]

Exits the current context.

Referenced by metadone.metabusiness.script.js.JSEvaluator.evaluate().

final ProgLanguage metadone.metabusiness.script.js.JSEvaluator.getLanguage ( )

Gets the evaluated language.

Returns:: The language

Implements metadone.metabusiness.script.ScriptEvaluator.

synchronized Scriptable metadone.metabusiness.script.js.JSEvaluator.getScope ( ) [protected]

Gets the context used by the evaluator.

This method may be executed only after enterContext() has been executed.

Returns:: An initialized context

References metadone.metabusiness.script.js.JSEvaluator.createScope(), metadone.metabusiness.script.js.JSEvaluator.jsContext, metadone.metabusiness.script.js.JSEvaluator.jsScope, metadone.metabusiness.script.js.JSEvaluator.jsUpdateScope, and metadone.metabusiness.script.js.JSEvaluator.updateScope().

Referenced by metadone.metabusiness.script.js.JSEvaluator.evaluate().

Object metadone.metabusiness.script.js.JSEvaluator.getSecurityDomain ( ) [protected]

Gets the security domain used to run the script.

Returns:: A security domain or null

Referenced by metadone.metabusiness.script.js.JSEvaluator.evaluate().

void metadone.metabusiness.script.js.JSEvaluator.initContext ( Context cx ) [protected]

Sets the required parameters for this context.

Parameters:

cx	The context to update

References metadone.metabusiness.script.js.GenericJSWrapFactory.addExtensionFirst(), metadone.metabusiness.script.js.JSEvaluator.COMPILER_OPTIMIZATION_LEVEL, metadone.metabusiness.script.ScriptEvaluator.Abstract.getPropertyBoolean(), metadone.metabusiness.script.ScriptEvaluator.Abstract.properties(), and metadone.metabusiness.script.js.JSEvaluator.WRAP_COLLECTIONS.

Referenced by metadone.metabusiness.script.js.JSEvaluator.enterContext().

void metadone.metabusiness.script.js.JSEvaluator.reset ( )

Resets the script evaluator.

Implements metadone.metabusiness.script.ScriptEvaluator.

References metadone.metabusiness.script.js.JSEvaluator.clearVariables(), metadone.metabusiness.script.js.JSEvaluator.jsContext, metadone.metabusiness.script.js.JSEvaluator.jsScope, and metadone.metabusiness.script.js.JSEvaluator.jsUpdateScope.

String metadone.metabusiness.script.js.JSEvaluator.toString ( )

References metadone.metabusiness.script.js.JSEvaluator.jsContext.

Referenced by metadone.metabusiness.script.js.JSEvaluator.evaluate().

void metadone.metabusiness.script.js.JSEvaluator.updateScope	(	Context	cx,
		Scriptable	scope
	)		`[protected]`

Sets the required parameters for this scope.

Parameters:

cx	The context
scope	The scope

References metadone.metabusiness.script.js.JSEvaluator.variables.

Referenced by metadone.metabusiness.script.js.JSEvaluator.createScope(), and metadone.metabusiness.script.js.JSEvaluator.getScope().

Member Data Documentation

final String metadone.metabusiness.script.js.JSEvaluator.COMPILER_OPTIMIZATION_LEVEL = "compiler.optimization_level" [static]

Referenced by metadone.metabusiness.script.js.JSEvaluator.initContext(), and metadone.metabusiness.script.js.JSEvaluator.JSEvaluator().

volatile Context metadone.metabusiness.script.js.JSEvaluator.jsContext = null [private]

Referenced by metadone.metabusiness.script.js.JSEvaluator.enterContext(), metadone.metabusiness.script.js.JSEvaluator.getScope(), metadone.metabusiness.script.js.JSEvaluator.reset(), and metadone.metabusiness.script.js.JSEvaluator.toString().

volatile Scriptable metadone.metabusiness.script.js.JSEvaluator.jsScope = null [private]

Referenced by metadone.metabusiness.script.js.JSEvaluator.getScope(), and metadone.metabusiness.script.js.JSEvaluator.reset().

volatile boolean metadone.metabusiness.script.js.JSEvaluator.jsUpdateScope = true [private]

Referenced by metadone.metabusiness.script.js.JSEvaluator.clearVariables(), metadone.metabusiness.script.js.JSEvaluator.declareVariable(), metadone.metabusiness.script.js.JSEvaluator.getScope(), and metadone.metabusiness.script.js.JSEvaluator.reset().

final Logger metadone.metabusiness.script.js.JSEvaluator.logger = Logger.getLogger(JSEvaluator.class) [static, private]

Referenced by metadone.metabusiness.script.js.JSEvaluator.evaluate().

final Map<String, Object> metadone.metabusiness.script.js.JSEvaluator.variables = new HashMap<String, Object>() [protected]

Referenced by metadone.metabusiness.script.js.JSEvaluator.clearVariables(), metadone.metabusiness.script.js.JSEvaluator.declareVariable(), and metadone.metabusiness.script.js.JSEvaluator.updateScope().

final String metadone.metabusiness.script.js.JSEvaluator.WRAP_COLLECTIONS = "wrap.collections" [static]

Referenced by metadone.metabusiness.script.js.JSEvaluator.initContext().

The documentation for this class was generated from the following file:

metadone_bundle_metabusiness/src/metadone/metabusiness/script/js/JSEvaluator.java

Public Member Functions

Static Public Attributes

Protected Member Functions

Protected Attributes

Private Attributes

Static Private Attributes

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation