OgnlExpressionEvaluator (Beangle Ems Core 3.6.8 API)

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

All Methods Instance Methods Concrete Methods
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 Detail
  - OgnlExpressionEvaluator
```
public OgnlExpressionEvaluator()
```
- Method Detail
  - 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