gross
Amarendran Subramanian <[EMAIL PROTECTED]> writes:
> Hi there,
>
> I developed a time ago something similar which includes a database
> persistence layer on top of it.
> It maps table entries in java objects and vice versa, the key features are:
> - 1-n, n-m, 1-1 references with automatic cache updates
> - query caches (always up to date)
> - automatic and manual transactions with to phase commit (if distributed)
> a third layer is a complete XML-based Controller-language e.g. the code
> looks like
>
> <workflow name="themain">
> <init>
> <varscope name="testvs"/>
> </init>
> <flow>
> <expr eval-to="$:*.test1$" eval="'1'"/>
> <expr eval-to="$:*.test1$" eval="#String#.valueOf( (int)(
> #Integer#.parseInt($:*.test1$)+1))"/>
> <expr
> eval="#System#.out.println($:*.test1$.(Object)toString())"/>
>
> <expr eval-to="$:*.blupp$"
> eval="#Integer#.parseInt('12'+'3')+7" name="firster"/>
> <expr eval-to="$:*.blupp3$" eval=
> "(#Integer#.parseInt('12'+'3')+7).toString() + '
> ADDED DEPP'"
> name="ueberhaupt_net_firster"/>
>
> <expr eval="#System#.out.println(' DER
> SYSTEM.OUT-DEPP')"/>
>
> <!-- this one won't cause a dynmaic method lookup and hence
> is faster than the one below -->
> <expr eval-to="$:*.blupp2$" eval=
> "$:*.blupp$.(Integer)doubleValue()"
> name="not_so_firster"/>
>
> <!-- this is the slow version causing a dynamic java method
> lookup -->
> <expr eval-to="$:*.blupp2$" eval=
> "$:*.blupp$.doubleValue()"
> name="doch_net_so_firster"/>
>
> <if><expr eval="$:*.BLUPP3$ == null"/>
> <then>
> <flow>
> <expr eval-to="$:*.BLUPP3$" eval="$:REQUEST.req1$"/>
> </flow>
> </then>
> </if>
>
>
> <expr eval-to="$:testvs.depp$"
> eval="3+6+2*2+((7+40)-3*(2+1))" name="first"/>
> <if name="depp0"><expr eval="((1> 2)==false) AND (3>2) AND
> (7==7)"/>
> <then>
> <flow>
> <expr eval-to="$:testvs.depp$" eval="3+6+2*2"
> name="depp1"/>
> <expr eval-to="$:testvs.depp$"
> eval="((7+40)-(3*2)+1)" name="depp2"/>
> <expr eval-to="$:testvs.depp$"
> eval="((7+40)-3*(2+1)+1)" name="depp3"/>
> </flow>
> </then>
> <else>
> <flow>
> <expr eval-to="$:testvs.depp$" eval="((7+40)-3*2+1)"
> name="depp4"/>
> </flow>
> </else>
> </if>
>
> ....
> </flow>
> </workflow>
>
> maybe we can build something greater together.
>
> sincerely amar
>
>
> -----Ursprungliche Nachricht-----
> Von: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]
> Gesendet: Montag, 22. April 2002 03:10
> An: [EMAIL PROTECTED]
> Betreff: Subproject Proposal - crossdb
>
>
> Hi,
>
> I would like to propose a new subproject for Jakarta and I will give some
> details below.
>
> The project is called crossdb and can be found at www.crossdb.com.
>
> What is it?
> crossdb is a Java API that is used to create SQL statements that are
> database independent. So you can write an application and have it run the
> exact same on any database (ie: MySQL, Oracle, MS SQL Server, etc.)
>
> The current release is ready for download and ready to use on several
> databases.
>
> We currently have 3 developers that work on it. I would like to have more
> people working on it to get more input and expertise into the different
> database implementations and I think the Jakarta project is the perfect
> place for this. I think the Jakarta project is absolutely terrific (and the
> Apache Foundation) as I try to use anything I can from Apache and it's
> projects.
>
> Basically, the value of this API is that you can save tons of time and
> effort changing code or learning the different SQL syntax. Now you can just
> use the crossdb API to write it once, run it anywhere (ie: on any database).
>
> Anyways, please let me know if you think this would be a valuable subproject
> for Jakarta. Thanks.
>
> Travis Reeder
> Chief Software Architect
> www.ThinkVirtual.com
>
>
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