All-
In using ECS for XML, I currently have to do this:
<code>
import org.apache.ecs.Document;
import org.apache.ecs.html.Head;
import org.apache.ecs.html.Body;
import org.apache.ecs.xml.XML;
import org.apache.ecs.xml.PI;
public doXML() {
Document doc = new Document();
Head head = new Head();
// Add XML prolog
Body body = new Body();
// Add XML content
doc.setHead(head);
doc.setBody(body);
System.out.println(doc.toString());
}
</code>
This is a little annoying, because what I want to do is:
<code>
import org.apache.ecs.Document;
import org.apache.ecs.xml.XML;
import org.apache.ecs.xml.PI;
public doXML() {
Document doc = new Document();
XML prolog = /* Assign */;
doc.appendBody(prolog);
// Add more content
}
</code>
The problem is that by default, Document's constructor adds in a head,
title, and body element. So I can't append, I have to replace them with
setHead() and setBody(). But this is not really good OO, because now I
have to import two org.apache.ecs.html classes to do pure XML. I
personally think this is not good. In addition, there is no notion of
head, body, etc., in an XML Document. So I propose:
(1) Create XMLDocument (extends Document)
(2) Add constructor with no parameters that simply creates an empty
XML document
* This allows appendHead, appendBody, whatever, no problem. They
will all just do an addElement(). Over time, we can remove these
methods altogther, but for now are there for portability
(3) Add constructor with one parameter, version (float)
(4) Add constructor with two parameters, version and standalone
(boolean)
* (3) and (4) create the first required XML Instruction (<?xml
version="1.0" standalone="yes"?>)
(5) Add setVersion(version, standalone) that can also set this
Yes, I know that the first line there is really a PI, but it isn't
treated like one, and doing things this way is more true to the spirit
of the spec. At a later time, I will suggest some XSL and other
adoptions for the prolog.
Anyway, anyone object to this? I can do it today probably.
-Brett
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