yes, field/methods are calling using reflection, I have no idea how
the Groovy MetaClass works. You can look at the OGNLReflectionProvider
class, that's the one doing the reflection stuff.
musachy
On Tue, Nov 10, 2009 at 7:10 AM, Ronny Løvtangen <li...@lovtangen.com> wrote:
> Anyone?
>
> Does the struts tags do some reflection magic that bypass the Groovy
> MetaClass?
>
>
> On Nov 9, 2009, at 5:55 PM, Ronny Løvtangen wrote:
>
>>
>> How can I from a Struts tag access properties that is overridden by Groovy
>> meta programming?
>> Example:
>>
>> Bar.groovy
>> ---------------
>>
>> class Bar {
>> String baz
>> }
>>
>>
>>
>> FooAction.groovy
>> -------------------------
>>
>> class FooAction extends ActionSupport {
>>
>> Bar bar
>>
>> String retrieveBar() {
>> bar = new Bar(baz: "original value")
>> bar.metaClass.getBaz = {"new value"}
>> return SUCCESS
>> }
>> }
>>
>> foo.jsp
>> --------
>>
>> <%@ taglib prefix="s" uri="/struts-tags" %>
>> Baz is: <s:property value="bar.baz"/>
>>
>>
>>
>>
>> Which yields the output "Baz is: original value"
>>
>> I was expecting "Baz is: new value", which is true for this test:
>>
>>
>> class FooActionTest extends GroovyTestCase {
>>
>> void testRetrieveBar() {
>> FooAction action = new FooAction()
>> action.retrieveBar()
>> assertEquals "new value", action.bar.baz
>> }
>> }
>>
>>
>> Any idea on how I from a Struts tag can invoke the overridden getBaz
>> method instead of the original one?
>>
>>
>> Ronny
>>
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>
>
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