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Online Glom


OnlineGlom is an experimental web-based UI for Glom systems which is in the initial stages of development.

We are currently working on view-only functionality, hoping to add editing later. These screenshots show the current unfinished state:

Screenshot-online-glom-list.png Screenshot-online-glom-details.png

Source Code

The source code for gwt-glom (the GWT UI) is in git here: .


You can try the latest demo code here, with the examples provided with Glom:

(Sorry. That's offline currently to save money.)


You may discuss OnlineGlom on the regular Glom mailing list. See the Contact page.

File a new OnlineGlom bug, or see the list of open OnlineGlom bugs.

Building and Running

These instructions will help you get OnlineGlom built and running locally on your computer.


To build gwt-glom from the source code you will need maven, which provides the mvn build tool. On Ubuntu, for instance, this is in the maven2 package.

Building gwt-glom

Now it's time to build the actual OnlineGlom which is in the gwt-glom git repository.

Getting gwt-glom

Now you can run this command to clone the gwt-glom module:

git clone git://

And change into the directory that you just cloned:

cd gwt-glom

Configuring gwt-glom

Before you can use OnlineGlom, you'll need to create the configuration file, to specify the directory where you keep your .glom files. Even if you just have one glom file, you'll still need to set the directory where it is located. There is a sample configuration file that you can use as a starting point.

You can edit the configuration file with any text editor but we're going to use gedit here for simplicity. Run this command to open the configuration file:

cp src/main/resources/ src/main/resources/ 
gedit src/main/resources/

To configure the directory where you have your glom files, change '/home/someuser/glomfiles' in the following configuration line: = /home/someuser/glomfiles

If you don't want to be prompted for the username and password of the underlying PostgreSQL database, you can set these two lines with the appropriate credentials:

glom.document.username = someuser

glom.document.password = ChangeMe

You can also set the password and username separately for each glom document by following the instructions in comments of the file.

Running gwt-glom

Once you have things configured, run this command to compile and run OnlineGlom:

mvn gwt:run

An application will start which lets you launch OnlineGlom in your browser. Click on the Launch Default Browser button when you're ready to start playing and you should see OnlineGlom pop up in a new tab of your browser. If you don't already have the GWT Firefox plugin, you'll be prompted to download and install it. It's normal for the browser to become unresponsive while OnlineGlom is getting setup so don't worry too much if this happens.

However, you might be taken to this URL:

which will appear as a blank page. It should work if you instead manually go to just this URL:

You may instead deploy OnlineGlom to a real server.

Using Eclipse

To hack on the gwt-glom module with Eclipse, you should first follow the instructions above to build everything. The project files for Eclipse 3.7 have been committed to the gwt-glom repository. You should use Eclipse 3.7 to avoid the time consuming project configuration required to setup things for a different version of Eclipse.

When you have everything working, you can import gwt-glom as an existing project into your Eclipse environment.