com.bstek.dorado.data.config

Class EntityExpressionMethodInterceptor

java.lang.Object

com.bstek.dorado.config.ExpressionMethodInterceptor

com.bstek.dorado.data.config.EntityExpressionMethodInterceptor

All Implemented Interfaces:

org.aopalliance.aop.Advice, org.aopalliance.intercept.Interceptor, org.aopalliance.intercept.MethodInterceptor

public class EntityExpressionMethodInterceptor
extends ExpressionMethodInterceptor

用于实现对Bean属性中EL表达式实时求值功能的方法拦截器。

Since:

Apirl, 2 2007

Author:

Benny Bao (mailto:benny.bao@bstek.com)

Nested Class Summary

Nested classes/interfaces inherited from class com.bstek.dorado.config.ExpressionMethodInterceptor

ExpressionMethodInterceptor.ReadMethodDescriptor

Field Summary

Fields inherited from class com.bstek.dorado.config.ExpressionMethodInterceptor

ENTRY_SET, GET, interceptingReadMethods, interceptingWriteMethods, PUT

Constructor Summary

Constructors

Constructor and Description
EntityExpressionMethodInterceptor(java.util.Map<java.lang.String,Expression> expressionProperties)

Method Summary

Methods

Modifier and Type	Method and Description
protected void	discoverInterceptingMethods(java.lang.Class<?> clazz)
protected java.lang.Object	evaluateExpression(ExpressionMethodInterceptor.ReadMethodDescriptor methodDescriptor) 根据被拦截到的方法评估(evaluate)相应的EL表达式，并返回其结果。

Methods inherited from class com.bstek.dorado.config.ExpressionMethodInterceptor

getExpressionProperties, invoke, isDisabled, setDisabled

Methods inherited from class java.lang.Object

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

Constructor Detail

EntityExpressionMethodInterceptor

public EntityExpressionMethodInterceptor(java.util.Map<java.lang.String,Expression> expressionProperties)

Parameters:

expressionProperties - EL表达式的集合。其中Map的键值为相应的对象属性名，值为EL表达式。

Method Detail

discoverInterceptingMethods

protected void discoverInterceptingMethods(java.lang.Class<?> clazz)
                                    throws java.lang.Exception

Overrides:

discoverInterceptingMethods in class ExpressionMethodInterceptor

Throws:

java.lang.Exception

evaluateExpression

protected java.lang.Object evaluateExpression(ExpressionMethodInterceptor.ReadMethodDescriptor methodDescriptor)

Description copied from class: ExpressionMethodInterceptor

根据被拦截到的方法评估(evaluate)相应的EL表达式，并返回其结果。

Overrides:

evaluateExpression in class ExpressionMethodInterceptor

Parameters:

methodDescriptor - 被拦截到的方法。

Returns:

EL表达式的评估结果。