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Brought Helma part of the README up to date.

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@ -44,78 +44,100 @@ Object Publisher, a powerful and fast scriptable open source web
application server (which itself is written in Java). Antville works application server (which itself is written in Java). Antville works
with a relational database in the backend. with a relational database in the backend.
============================ Check out http://project.antville.org/ for more information.
ABOUT HELMA OBJECT PUBLISHER
============================
Helma Object Publisher is a web application server. ===========
ABOUT HELMA
===========
With Helma Object Publisher (sometimes simply refered to as Helma or Helma is a scriptable platform for creating dynamic, database backed
Hop) you can define Objects and map them to a relational database web sites.
table. These so-called HopObjects can be created, modified and deleted
using a comfortable object/container model. Hence, no manual fiddling
around with database code is necessary.
HopObjects are extended JavaScript objects which can be scripted using Helma provides an easy way to map relational database tables to objects.
server-side JavaScript. Beyond the common JavaScript features, Helma These objects are wrapped with a layer of scripts and skins that allow
provides special "skin" and template functionalities which facilitate them to be presented and manipulated over the web. The clue here is that
the rendering of objects via a web interface. both functions and skins work in an object oriented manner and force
a clear separation between content, functionality and presentation.
Thanks to Helma's relational database mapping technology, HopObjects Actions are special functions that are callable over the web. Macros are
create a hierarchical structure, the Url space of a Helma site. The special functions that expose functionality to the presentation layer.
parts between slashes in a Helma Url represent HopObjects (similar to Skins are pieces of layout that do not contain any application logic,
the document tree in static sites). The Helma Url space can be thought only macro tags as placeholders for parts that are dynamically provided
of as an analogy to the Document Object Model (Dom) in client-side by the application.
JavaScript.
In short, Helma provides a one stop framework to create web applications
with less code and in shorter time than most of the other software out
there.
=================== ===================
SYSTEM REQUIREMENTS SYSTEM REQUIREMENTS
=================== ===================
You need Java 2 runtime version 1.3 or higher to run Helma. Helma has You need a Java virtual machine 1.3 or higher to run Helma.
been used successfully on Windows, Linux and Mac OS X platforms.
For Windows, Linux and Solaris you can get a Java runtime or development
kit from http://java.sun.com/j2se/downloads.html.
If you are on Mac OS X, you already have a Java runtime that will work
well with Helma.
Unfortunately, there is no Java 2 interpreter for Mac OS Classic, so
you can't use Helma on Mac OS 9.
============================ ============================
INSTALLING AND RUNNING HELMA INSTALLING AND RUNNING HELMA
============================ ============================
Simply unzip the contents of the archive file into any place on your Simply unzip or untar the contents of the archive file into any place
hard disk. Start Helma by opening the file hop.bat or hop.sh, on your hard disk. Start Helma by invoking hop.bat or hop.sh from the
respectively. command line, depending on whether you are on Windows or
Linux/Unix/MacOSX. If the java command is not found, try setting the
JAVA_HOME variable in the start script to the location of your Java
installation.
You may also want to have a look at the start script for other settings.
You can adjust server wide settings in the server.properties file. For
example, you should set the smtp property to the name of the SMTP server
that Helma should use to send Email. Applications can be started or
stopped by editing the apps.properties file through the web interface
using the Management application that is part of Helma.
If you manage to get it running you should be able to connect your If you manage to get it running you should be able to connect your
browser to http://127.0.0.1:8080/ (port 8080, that is). browser to http://localhost:8080/ or http://127.0.0.1:8080/
(port 8080 on the local machine, that is).
This version is set up to use its own embedded Web server and a very Helma comes with a version of Jetty, a lightweight yet industrial strenth
basic embedded object database. For this reason it is able to run web server developed by Mortbay Consulting. See http://jetty.mortbay.com/
virtually without installation on any platform with a Java 1.1 virtual for more information. While Jetty works well for deploying real web sites,
machine. you may want to run Helma behind an existing web server. This is most
easily done by running Helma with the AJPv13 listener which allows you to
plug Helma into any web server using the Apache mod_jk module. See
http://jakarta.apache.org/tomcat/tomcat-4.1-doc/jk2/index.html for more
information on mod_jk and AJPv13.
On the other hand, the embedded Web server and object db are meant for Finally, Helma can be plugged into Servlet containers using Servlet
development work and not ready for prime time deployment. For that classes that communicate with Helma either directly or via Java RMI.
you'd probably use an external relational database, the Berkeley DB (Be warned that these options may be harder to set up and maintain though,
package and a full featured Web server like Apache. since most of the recent development efforts have been geared towards the
mod_jk/AJPv13 setup.)
===================================== =====================================
DOCUMENTATION AND FURTHER INFORMATION DOCUMENTATION AND FURTHER INFORMATION
===================================== =====================================
Currently, a documentation-in-progress is available online only. Currently, documentation-in-progress is available online at
Please refer to http://helma.org/. http://helma.org/. We know that it sucks and hope to do some substantial
improvments within the coming weeks and months.
For further information http://helma.org generally is a good place. Your input is highly welcome. There is a mailing-list to discuss Helma at
There is also a mailing-list about Helma-related stuff available at http://helma.org/lists/listinfo/hop. Don't hesitate to voice any questions,
http://helma.org/lists/listinfo/hop. proposals, complaints, praise you may have on the list. We know we have
a lot to do and to learn, and we're open to suggestions.
For questions, comments or suggestions feel free to contact
tobi@helma.at.
For questions, comments or suggestions also feel free to contact
antville@helma.org.
-- --
This document was last modified on Friday 25 October 2002 by Last modified on December 5, 2002 by Hannes Wallnoefer <hannes@helma.at>
hannes@helma.at