How to expose expose a Java TagLibrary

[Jason Dillon <ja...@paybytouch.com>]

Hi, I'm trying to figure out how to expose a Java TagLibrary from a
plugin.

Inside of my plugin, I can create a:

<define:taglib uri="myplugin">
    <define:tag name="dependency-handle">
    </define:tag>
</define:taglib>

And I can access this taglib just fine from another project.

Similarly in my plugin, I can define:

<project xmlns:local="jelly:com.whatever.jelly.MyTagLibrary">
    <local:sometag/>
</project>

And I can now access the Java TagLibrary MyTagLibrary from inside the
plugin.

But, what I am trying to do is to create a plugin which provides a set
of tags for use in other projects.

How can I expose a Java TagLibrary as if it were a <define:taglib>
inside of my plugin.jelly?

I tried using <define:jellybean>, <define:bean> with no luck.  While I
was able to get the tag to attach to the taglib, it did not allow the
tags to properly find their parent via findAncestorWithClass().

So far the only luck I have had with exposing Java TagLibraries
externally is to have the plugin nest the tags inside of a dynamic tag
created.

Is this even possible with Maven 1.0.2?  If so, could someone explain
how I can do this.

Thanks,

--jason 

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Re: How to expose expose a Java TagLibrary

[Brett Porter <br...@gmail.com>]

There are a couple of alternatives.

Like the artifact plugin, you can wrap the java in a "jellybean", and
use the exported tag library for that. I think this is what you
describe below as unsatisfactory.

The other alternative is to put the tag library in a JAR, add that as
a dependency on the project, and reference it like this:

xmlns:foo="jelly:com.foo.tags.FooTagLibrary"

See the Xdoc plugin for an example where it references it's own
classes to do that.

HTH,
Brett

On 6/7/05, Jason Dillon <ja...@paybytouch.com> wrote:
> Hi, I'm trying to figure out how to expose a Java TagLibrary from a
> plugin.
> 
> Inside of my plugin, I can create a:
> 
> <define:taglib uri="myplugin">
>     <define:tag name="dependency-handle">
>     </define:tag>
> </define:taglib>
> 
> And I can access this taglib just fine from another project.
> 
> Similarly in my plugin, I can define:
> 
> <project xmlns:local="jelly:com.whatever.jelly.MyTagLibrary">
>     <local:sometag/>
> </project>
> 
> And I can now access the Java TagLibrary MyTagLibrary from inside the
> plugin.
> 
> But, what I am trying to do is to create a plugin which provides a set
> of tags for use in other projects.
> 
> How can I expose a Java TagLibrary as if it were a <define:taglib>
> inside of my plugin.jelly?
> 
> I tried using <define:jellybean>, <define:bean> with no luck.  While I
> was able to get the tag to attach to the taglib, it did not allow the
> tags to properly find their parent via findAncestorWithClass().
> 
> So far the only luck I have had with exposing Java TagLibraries
> externally is to have the plugin nest the tags inside of a dynamic tag
> created.
> 
> Is this even possible with Maven 1.0.2?  If so, could someone explain
> how I can do this.
> 
> Thanks,
> 
> --jason
> 
> ===========================================================================
> This email and any attachment(s) thereto, are intended for the use of
> the addressee(s) name herein and may contain legally privileged and or
> confidential information under applicable law. If you are not the
> intended recipient of this e-mail, you are hereby notified any
> dissemination, distribution or copying of this email, and any attachment(s)
> thereto, is strictly prohibited. If you have received this communication
> in error, please notify the sender at 415-281-2200 or via return e-mail at
> postmaster@paybytouch.com and permanently delete the original copy and
> any copy of any e-mail, and any printout thereof. Thank you for your
> cooperation.
> 
> 
> 
> 
> 
> 
> 
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