net.sf.oval.expression
Class ExpressionLanguageScriptEngineImpl

java.lang.Object
  extended by net.sf.oval.expression.ExpressionLanguageScriptEngineImpl
All Implemented Interfaces:
ExpressionLanguage

public class ExpressionLanguageScriptEngineImpl
extends Object
implements ExpressionLanguage

JSR223 Support

Author:
Sebastian Thomschke

Method Summary
 Object evaluate(String expression, Map<String,?> values)
          Evaluates the given expression.
 boolean evaluateAsBoolean(String expression, Map<String,?> values)
          Evaluates the given expression and expects it to return a boolean.
static ExpressionLanguageScriptEngineImpl get(String languageId)
           
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Method Detail

get

public static ExpressionLanguageScriptEngineImpl get(String languageId)

evaluate

public Object evaluate(String expression,
                       Map<String,?> values)
                throws ExpressionEvaluationException
Evaluates the given expression.

Specified by:
evaluate in interface ExpressionLanguage
Parameters:
expression - the expression to evaluate
values - context values passed to the interpreter
Returns:
the result of the expression evaluation
Throws:
ExpressionEvaluationException - in case of an invalid expression

evaluateAsBoolean

public boolean evaluateAsBoolean(String expression,
                                 Map<String,?> values)
                          throws ExpressionEvaluationException
Evaluates the given expression and expects it to return a boolean.

Specified by:
evaluateAsBoolean in interface ExpressionLanguage
Parameters:
expression - the expression to evaluate
values - context values passed to the interpreter
Returns:
the result of the expression evaluation
Throws:
ExpressionEvaluationException - If an error during evaluation occurs or if the return value is not a boolean value.


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