Comments on: The best Markup Builder I could build in Java

By: stephan

stephan — Wed, 15 Apr 2009 18:53:17 +0000

p(..) + p(..) + p(..) is evaluated at this point of time, p(..),p(..),p(..) can be evaluated later, e.g. XML and JSON can be generated whenever you like, with “+” it needs to be generated at the time of construction.

Stephan

By: devsmt

devsmt — Wed, 15 Apr 2009 12:17:09 +0000

extremely interesting work, i’am not a java guru but i don’t see how

h1(
p(“One”),
p(“Two”),
p(“Three”)
);

makes any difference from

h1(
p(“One”)+
p(“Two”)+
p(“Three”)
);

thanks

By: Fluent interfaces everywhere at Stephans Blog

Fluent interfaces everywhere at Stephans Blog — Tue, 04 Dec 2007 07:39:15 +0000

[...] No signal, no noise. « The best Markup Builder I could build in Java [...]

By: stephan

stephan — Tue, 04 Dec 2007 07:34:29 +0000

@Hristo: I could think of

new Page {
   protected String render() {
             withCss("names.css")
             .withJS("mine.js")
             .with(
                html(
                   body("hello world");
                ).withId("top");
    }

Anything fancier? XHTML and a generater could be used for the static methods, too. An generator can be easly (~1h) written with velocity. For perfomance one can consider writing elements on the fly, not keeping them in memory. Or compiling them to an array and optimize the compiled result. Either way you can get much more performance wiht an intelligent builder than with the naive builder approach one comes to mind at first.

By: stephan

stephan — Tue, 04 Dec 2007 05:46:27 +0000

@Hristo: Do you have an example? I’ve tried a builder with fluent interfaces and XStream and it wasn’t as nice. Another version would be as an inner class, where you wouldn’t need static imports.

One wouldn’t use markup builders for larger content, I would use templates for that.

By: Hristo

Hristo — Mon, 03 Dec 2007 23:24:27 +0000

Here is better approach to get the same stuff for free:
1. Download the schema for XHTML.
2. Get JAXB and use the fluent plug-in for it to generate Java objects off XHTML schema.
3. Generate all the builder classes and for the complete XHTML with that!

One common problem with mark-up builders is that they quickly run out of memory for larger HTML content.

By: stephan

stephan — Mon, 03 Dec 2007 05:26:34 +0000

@Andreas: Thanks. Took quite some time.

By: Andreas Andreou

Andreas Andreou — Mon, 03 Dec 2007 02:08:24 +0000

Quite elegant … well done man!

By: stephan

stephan — Sun, 02 Dec 2007 20:39:41 +0000

@Alex: I’ll release the code with an Apache license in the SVN sometimes next week, because of time constraints not as a project currently. Perhaps if I need it for XML/ JSON in Reposita, I’ll add it there. Thanks for the comment.

By: Alex

Alex — Sun, 02 Dec 2007 20:03:42 +0000

Hello Stephan,

nice to see Java people working on concise and clear syntax for frequent problems. Nice work! Will you be releasing this code?