Comments on: Getting started with LCDS 3 Beta and MySQL, Part 2

By: justin

justin — Thu, 09 Dec 2010 18:22:07 +0000

@saumya: I'm not exactly sure what you want to query, but LCDS makes it easy to add derived properties to entities. It also has a straightforward mechanism to build pass-through filters that enable you to write custom JPQL queries to return a set of entities. Beyond that, LCDS 3.1 enables you to write services directly in Java so you can do anything you want. For derived properties and pass-through filters, see my InsideRIA articles: Getting Real With LCDS 3, Part 1 and Getting Real With LCDS 3, Part 2.

By: saumya

saumya — Mon, 06 Dec 2010 16:36:25 +0000

Hi, Thanks for the post!
Can you tell me where in this setup can I add custom queries for my application ?

I want to define custom database queries to be executed on events.

Where would I define that ?

Many thanks.

By: Cong

Cong — Thu, 29 Jul 2010 05:17:21 +0000

Great tutorial and I have re-read parts 1 and 2 many times over but I cannot seem to get it working.

The RDS connection test is successful but when i try and run the application i get a:

Could not initialize DataService
Missing or invalid configuration for destinations: ["MyApp.Player"]

i can’t for the life of me figure it out, i can see the table in data model and see the table data as well but it wont’ show when i run the application.

any thoughts?

By: justin

justin — Sun, 07 Feb 2010 01:59:30 +0000

@Norbert: First, I recommend re-reading Part 1 for how to correctly install and configure LCDS. Second, "data source not found" sounds like something is wrong with the db connection to me. So, I'd verify that the mysql db exists and the name is correct in the tomcat context config (in /tomcat/conf/Catalina/localhost/).

By: Norbert Wassink

Norbert Wassink — Sat, 06 Feb 2010 21:17:33 +0000

Im getting RDSDispatchServlet: Data source not found: java:/comp/env/jdbc/ error when selecting the tables in the RDSDataView. Any ideas ?

By: Israel Souza

Israel Souza — Tue, 02 Feb 2010 00:13:00 +0000

Parabéns!
Repeated step-by-step today and it worked.
You’re the man.

By: Israel Souza

Israel Souza — Mon, 01 Feb 2010 23:43:26 +0000

Yes ok.
I was wrong with version, it really was LiveCycle BlazeDS.
I’m having some problems with java mysql connection.
Thanks for the help.

By: justin

justin — Mon, 01 Feb 2010 21:33:05 +0000

@Israel: First, I recommend reading Part 1 for how to correctly install and configure LCDS. And second, this post is all about LCDS, so I wouldn't expect RDS to work with BlazeDS.

By: Israel Souza

Israel Souza — Mon, 01 Feb 2010 00:05:25 +0000

Some ideas:

1. Remember mysql connector jar (C:\lcds\tomcat\lib\mysql-connector-java-5.1.11-bin.jar)
2. Remember BlazeDS jar (C:\lcds\tomcat\webapps\lcds\WEB-INF\lib\flex-rds-server.jar)

By: Israel Souza

Israel Souza — Mon, 01 Feb 2010 00:00:01 +0000

Please help me, getting RDS error:

“RDS operation not supported : DBFUNCS”