metadone.metabusiness.script.ScriptEvaluator Interface Reference

Inheritance diagram for metadone.metabusiness.script.ScriptEvaluator:

List of all members.

Classes
class	Abstract
interface	ScriptResult
Public Member Functions
void	declareVariable (String name, Object value)
void	clearVariables ()
Properties	properties ()
ScriptResult	evaluate (String script)
ProgLanguage	getLanguage ()
ScriptResult	initScriptEvaluate ()
void	reset ()

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Detailed Description

Evaluates a script with a given context.

Once an evaluator is created, it has its own context. This context may be changed by the calls to the set methods. From there, evaluate(String) works as a REPL (read-evaluate-print-loop).

A simple usage example:

 ScriptResult r;
 ScriptEvaluator ev = ...;
 r = ev.evaluate("function abc(arg) { return arg + self; }");
 if (r.isException()) throw new RuntimeException(r.getException());
 r = ev.evaluate("a = 5 + 3");
 System.out.println(r.getNumber()); // 8
 ev.setSelf(1);
 r = ev.evaluate("abc(a)");
 System.out.println(r.getNumber()); // 9
 

Author:

kma

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Member Function Documentation

void metadone.metabusiness.script.ScriptEvaluator.clearVariables

(

)

Removes all the previously declared variables.

Implemented in metadone.metabusiness.script.groovy.GroovyEvaluator, metadone.metabusiness.script.java.JavaScriptingEngine, metadone.metabusiness.script.js.JSEvaluator, and metadone.metabusiness.script.plugin.EventScriptEvaluator.

Referenced by metadone.client.grasyla2.GrasylaContext.initScriptEvaluator().

void metadone.metabusiness.script.ScriptEvaluator.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

Implemented in metadone.metabusiness.script.groovy.GroovyEvaluator, metadone.metabusiness.script.java.JavaScriptingEngine, metadone.metabusiness.script.js.JSEvaluator, and metadone.metabusiness.script.plugin.EventScriptEvaluator.

Referenced by metadone.metabusiness.impl.ConcreteObject_impl.evaluateFormula(), metadone.client.grasyla2.GrasylaContext.initScriptEvaluator(), metadone.client.grasyla2.visuallibrary.GraphEngine.GrasylaContextGraph.initScriptEvaluatorGlobal(), and metadone.client.grasyla2.actions.GrasylaActionEngine.ActionContext.initScriptEvaluatorGlobal().

ScriptResult metadone.metabusiness.script.ScriptEvaluator.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

Implemented in metadone.metabusiness.script.java.JavaScriptingEngine, metadone.metabusiness.script.js.JSEvaluator, and metadone.metabusiness.script.plugin.EventScriptEvaluator.

Referenced by metadone.client.grasyla2.value.ValueScriptEngine.evaluateComponent(), metadone.metabusiness.impl.ConcreteObject_impl.evaluateFormula(), and metadone.client.grasyla2.GrasylaInterpreter.runInitScript().

ProgLanguage metadone.metabusiness.script.ScriptEvaluator.getLanguage

(

)

Gets the evaluated language.

Returns:

The language

Implemented in metadone.metabusiness.script.java.JavaScriptingEngine, metadone.metabusiness.script.js.JSEvaluator, and metadone.metabusiness.script.plugin.EventScriptEvaluator.

Referenced by metadone.metabusiness.impl.ConcreteObject_impl.evaluateFormula().

ScriptResult metadone.metabusiness.script.ScriptEvaluator.initScriptEvaluate

(

)

Evaluates the initialization script.

Returns:

The result of the initialization

Implemented in metadone.metabusiness.script.groovy.GroovyEvaluator, and metadone.metabusiness.script.ScriptEvaluator.Abstract.

Referenced by metadone.client.grasyla2.GrasylaInterpreter.runInitScript().

Properties metadone.metabusiness.script.ScriptEvaluator.properties

(

)

Gets the properties (modifications performed on the returned properties are reflected in this class).

Returns:

The properties

Implemented in metadone.metabusiness.script.ScriptEvaluator.Abstract.

void metadone.metabusiness.script.ScriptEvaluator.reset

(

)

Resets the script evaluator.

Implemented in metadone.metabusiness.script.java.JavaScriptingEngine, metadone.metabusiness.script.js.JSEvaluator, and metadone.metabusiness.script.plugin.EventScriptEvaluator.

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

• metadone_bundle_metabusiness/src/metadone/metabusiness/script/ScriptEvaluator.java