Custom Tags

[Kudret Serin]

Hi,
I would like to do following;

I have a tag let’s say <ibp:link toPage="...">

I would like to add a new attribute to this tag but I don’t want to edit this tag's class file. So I want to write my own tag by using old one. Let’s say it will be <my:link toPage="..." newAttribute="..."/>

So I want to do something with newAttribute in <my:link> tag, after doing some work I want the same output from <ibp:link/> tag.

Could you please show the way?

I wish I could have explained my situation
Thanks in advance.

[Jeanne Boyarsky]

Kudret,
It sounds like you want one tag (Java file) to call another. What problem are you running into?

[Surya Kant]

Yes you can do it very easily..Just extend the class.Define one more entry in .tld class which takes extra parameter..And your job is done..

[Bauke Scholtz]

As far as I know tag attributes doesn't know inheritance. So you need to define all "to-be-inherited" attributes in the tag file as well.

[Surya Kant]

yes they know..because base class's id attribute inherited automatically..

[Kudret Serin]

Surya Kant wrote:Yes you can do it very easily..Just extend the class.Define one more entry in .tld class which takes extra parameter..And your job is done..

Thanks for your replies,

@Surya
------------------------
Yes this is the first solution that we think, but after discussing it (De-compile the main class after adding some new features in it after save it another name and using it) we think that we can have some problems between de-compiled java class's owner company and our company.

So what i want to do

if(newAttribute==1){
 do something
}else{
 <ibp:link toPage="...">  :)))
}

So i dont want to invent the whell again but i need to do this in legal way..

Any ideas ?

Gr.

[Bauke Scholtz]

Surya Kant wrote:yes they know..because base class's id attribute inherited automatically..

Erm, I mean the TLD files, not the Java classes.

[Surya Kant]

Sorry for the late reply.
Follow these steps for your problem
1.Create a class which extends the existing tag class
2.Create entry in the tld file & define the attribute property also
3.In your doEndTag method check for the attribute .If it is true then call supper class's method otherwise continue.

It is a simple case of overriding.Do let me know if you are still not getting what i am telling.

[Kudret Serin]

Surya Kant wrote:Sorry for the late reply.
Follow these steps for your problem
1.Create a class which extends the existing tag class
2.Create entry in the tld file & define the attribute property also
3.In your doEndTag method check for the attribute .If it is true then call supper class's method otherwise continue.

It is a simple case of overriding.Do let me know if you are still not getting what i am telling.

Ohh thanks, its works ;)

Thank you....