org.apache.geronimo.gshell.expression
Class JexlExpressionEvaluator

java.lang.Object
  org.apache.geronimo.gshell.expression.JexlExpressionEvaluator

All Implemented Interfaces:

ExpressionEvaluator

public class JexlExpressionEvaluator
extends Object
implements ExpressionEvaluator

A very simple expression evalutator using Jexl to do the hard work.

Version:

$Rev: 580765 $ $Date: 2007-09-30 11:52:39 -0700 (Sun, 30 Sep 2007) $

Nested Class Summary

Nested classes/interfaces inherited from interface org.apache.geronimo.gshell.expression.ExpressionEvaluator

ExpressionEvaluator.SyntaxException

Constructor Summary

JexlExpressionEvaluator(Map vars)

JexlExpressionEvaluator(Variables vars)

Method Summary

protected org.apache.commons.jexl.Expression	createExpression(String expression)
Object	evaluate(String expression)
Map	getVariables()
String	parse(String input)
String	parse(String input, boolean trim)

Methods inherited from class java.lang.Object

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

Constructor Detail

JexlExpressionEvaluator

public JexlExpressionEvaluator(Map vars)

JexlExpressionEvaluator

public JexlExpressionEvaluator(Variables vars)

Method Detail

getVariables

public Map getVariables()

createExpression

protected org.apache.commons.jexl.Expression createExpression(String expression)
                                                       throws Exception

Throws:

Exception

evaluate

public Object evaluate(String expression)
                throws Exception

Specified by:

evaluate in interface ExpressionEvaluator

Throws:

Exception

parse

public String parse(String input)
             throws ExpressionEvaluator.SyntaxException

Specified by:

parse in interface ExpressionEvaluator

Throws:

ExpressionEvaluator.SyntaxException

parse

public String parse(String input,
                    boolean trim)
             throws ExpressionEvaluator.SyntaxException

Throws:

ExpressionEvaluator.SyntaxException