Extreme Mashup Development - Top 10 Forum Posts

Master's Thesis Ideas

Posted 05/27/2010 - 23:21 by franck

Hello everyone!

I'm very happy to join MDC ... I hope to learn a lot from everyone and of course I'm ready to give my two cents. I got here looking for a Master's thesis topic, SOA, Mashups, Web services, Semantic Web are some of the topics I'm very interested about and of course I'm ready to colaborate here!! :)

Ext 2.1 and IE 7/8 Compatability Issue

Posted 04/26/2010 - 20:08 by nzblue_fish

Hi mashers,

Just wondered if anyone has run in to compatability issues when using Ext 2.1 and IE 7/8.  I've just finished building a custom mashlet that works beautifully in FF3 (and Safari) but bombs in a spectacular fashion when trying to run it in IE 7/8.

I'm not even sure where to start to try and fix this one, but it is an issue for us as our in-house standard browser is IE.

Thanks, Innes

The disappearing backslash ...

Posted 03/21/2010 - 18:09 by nzblue_fish

Hi guys,

Not sure if this is a major issue, but it was a bit of an odd one to run in to.

When an emml script (mashup) I published to the Cloud yesterday was parsed, the process somehow removed a backslash that I had in a tokenize function buried in one of my macros.

 The original emml statement in the source file was this: [Read More...]

Complex type Input Parameter

Posted 03/21/2010 - 02:57 by nzblue_fish

Hi guys,

I have published a new mashup to the Cloud, but when I tried to create a mashlet using this mashup, I get the following message and can't finished the mashlet build.

The selected Operation has at least one Complex type Input Parameter.  We recommend that you virtualize this Operation using our Mashup Composition tool - Wires.

I appreciate why you get this message, since it wouldn't be easy to create a document as an input parameter for a mashlet. [Read More...]

FastStringBuffer type comparison error

Posted 03/18/2010 - 18:43 by nzblue_fish

Hi mashers,

If you are doing a lot of work that involves using XPath sequences in your emml, watch out for a string type comparison error that you might get when say using <if> to compare a value in a sequence with a string literal.

I've been doing a bit of work using sequences and had this error come up a couple of times recently: Cannot compare java:net.sf.saxon.om.FastStringBuffer to xs:string when doing something like this in a script: [Read More...]

Dynamic Variable Creation

Posted 03/04/2010 - 00:08 by nzblue_fish

Hi fellow mashers,

Does anyone know if it's possible to dynamically create a variable in an emml script.

For example:

 Some variable that contains a string value:

  <variable name="dynamVar" type="string" default="myVariable" />

then

  <assign literal="a bit of data" outputvariable="{$dynamVar}" />

resulting in: [Read More...]

Custom XPath Functions using Groovy

Posted 03/02/2010 - 17:04 by nzblue_fish

Hi,

Is there anyone in the MDC interested in seeing if you can use Groovy to build custom XPath functions?

Just as an experiment, I have tried it out, but after a couple of attempts I've got to the point where I've exceeded my Java/Groovy skills. The last shot at this produced the following result when running an emml in debug mode: [Read More...]

Mashups connecting to JMS Queues

Posted 02/23/2010 - 08:06 by dsilvia

We ae in the process of desiging a process where we create a mashup that connects to a JMS queue, get the recent messages in the queue and then take the message data and publish this data to a webservice. Is there any examples that show how to connect to a JMS queue using a mashup and get the messages in the JMS queue.

 

Thanks

Variable Declaration for Groovy

Posted 02/08/2010 - 17:00 by nzblue_fish

Hi Mashers,

Does anyone know what the rules are around declaration of variables in an enclosing emml script are for Groovy code execution?

The following Groovy code executes fine in the Groovy Console (1.6.5): [Read More...]

Adding a CDATA section in emml output

Posted 02/05/2010 - 01:52 by nzblue_fish

Hi Mashers,

I'm workin on building an emml output document that needs to include a CDATA section, but I'm having problems getting the output rendered properly because the CDATA section is evaluated as the script is parsed and a nested CDATA causes problems..

Essentially I need to do something like:

    <![CDATA[<!CDATA[... the actual cdata content to be output ...]]]]

but this doesn't work. [Read More...]