Package org.beangle.ems.script

Class OgnlExpressionEvaluator

java.lang.Object

org.beangle.ems.script.OgnlExpressionEvaluator

All Implemented Interfaces:

org.beangle.commons.script.ExpressionEvaluator

public class OgnlExpressionEvaluator
extends Object
implements org.beangle.commons.script.ExpressionEvaluator

基于OGNL的表达式执行器

Version:

$Id: OgnlExpressionEvaluator.java Mar 5, 2012 12:13:41 AM chaostone $

Author:

chaostone

Constructor Summary

Constructors

Constructor	Description
OgnlExpressionEvaluator()

Method Summary

Modifier and Type	Method	Description
Object	eval(String exp, Object root)	Eval a expression within context
<T> T	eval(String exp, Object root, Class<T> resultType)
void	parse(String exp)

Methods inherited from class java.lang.Object

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

Constructor Details

OgnlExpressionEvaluator

public OgnlExpressionEvaluator()

Method Details

parse

public void parse(String exp)
           throws org.beangle.commons.script.EvaluationException

Specified by:

parse in interface org.beangle.commons.script.ExpressionEvaluator

Throws:

org.beangle.commons.script.EvaluationException

eval

public Object eval(String exp,
 Object root)

Eval a expression within context

Specified by:

eval in interface org.beangle.commons.script.ExpressionEvaluator

Parameters:

exp - a java's expression

root - params.

Returns:

evaluate result

eval

public <T> T eval(String exp,
 Object root,
 Class<T> resultType)

Specified by:

eval in interface org.beangle.commons.script.ExpressionEvaluator