Angus,
You do not need to use typdef to support nested elements. There are many
examples in Ant itself of classes which support nested elements which are
not typedef'd. Have a look at the javadoc task's code. It supports a <link>
nested element by having a nested class which stores the link information
public class LinkArgument {
private String href;
private boolean offline = false;
private File packagelistLoc;
public LinkArgument() {
}
public void setHref(String hr) {
href = hr;
}
and then supports that element via this method
public LinkArgument createLink() {
LinkArgument la = new LinkArgument();
links.addElement(la);
return la;
}
There is no need to typedef this type. It is just private to the task being
used.
Conor
> -----Original Message-----
> From: McCollum , Angus [mailto:[EMAIL PROTECTED]]
> Sent: Thursday, 27 September 2001 8:00 AM
> To: '[EMAIL PROTECTED]'
> Subject: RE: Are all nexted elements implemented as DataType extensions?
>
>
> Thank you Erik. Both of those are great examples of nesting tasks.
>
> I was thinking about my problem wrong though. I should have been using a
> custom type. I have a task that produces XML reports and writes them to
> disk. I wanted the task to take a set of nested elements that describe the
> list of reports to create.
>
> Unfortunately my problem is now finding where the typedef element is
> expected in the build file. I assume that it should be in the project
> element before it is used.
>
> Ant gives me the following error whereever I put the typedef element:
>
> 10: Unexpected element "typedef"
>
>
> G. Angus McCollum
>
> -----Original Message-----
> From: Erik Hatcher [mailto:[EMAIL PROTECTED]]
> Sent: Wednesday, September 26, 2001 5:42 PM
> To: [EMAIL PROTECTED]
> Subject: Re: Are all nexted elements implemented as DataType extensions?
>
>
> Have a look at the Sequential and Parallel built-in Ant tasks (in
> Ant 1.4).
> They implement TaskContainer. That should point you in the right
> direction
> for implementing a task that contains other tasks.
>
> Erik
>
>
> ----- Original Message -----
> From: "McCollum , Angus" <[EMAIL PROTECTED]>
> To: <[EMAIL PROTECTED]>
> Sent: Wednesday, September 26, 2001 1:43 PM
> Subject: Are all nexted elements implemented as DataType extensions?
>
>
> > I created a custom Ant task with a nested element. I had writen
> the nested
> > element as a Task but failed to get the addXXXX method called on the
> > enclosing task.
> >
> > I took a look at the Ant source and noticed that all the
> examples I found
> > used nested element that were DataTypes and not Tasks. Is this
> always the
> > case? Should I have structed my nested element as a DataType and not a
> Task?
> >
> > Thank you in advance.
> >
> > G. Angus McCollum
> >
>
