classic tag access a simple parent?

[John Wallace]

Using the getParent() method, is it possible for a Classic Tag to access a Simple Tag parent?

For example:

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Consider a JSP page that contains the following code:

10. <x:outer>
11. <x:middle>
12. <x.inner></x.inner>
13. </x:middle>
14. </x:outer>


Assuming the following implementation details...

1. x:outer is implemented by OuterTag.java, which extends SimpleTagSupport.
2. x:middle is implemented by MiddleTag.java, which extends BodyTagSupport and has a body-content of tagdependent.
3. x:inner is implemented by InnerTag.java, which extends BodyTagSupport and has a body-content of tagdependent.

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Can MiddleTag can get a reference to OuterTag by calling TagSupport.getParent() method?

[Vishwanath Krishnamurthi]

No. TagSupport.getParent() implements Tag.getParent() which has Tag as the return type. Since a Simple Tag cannot be cast into a Tag, in this case, MiddleTag cannot get a reference to OuterTag by calling TagSupport.getParent() method.

HTH,
Vishwa

[Mateus Lucio]

Yes, it is possible to get a SimpleTag Parent calling getParent() method in a ClassicTag, since SimpleTags have another class hierarchy you cannot directly cast you SimpleTag parent reference, for that a TagAdapter is supplied, take a look at javax.servlet.jsp.tagext.TagAdapter, it's mainly purpose is to wrap a SimpleTag and exposes it as a Tag reference.

[namita sasa]

The body-content is defined as non-tagdependent that means we can have scriplets, EL and tags allowed. I am confused!
Please help. Sorry for posting this in incorrect topic.