On 10/02/2011 16:03, Anja Le Blanc wrote: > Hallo MyGrid team, Hello
[snip] > This list I > feed into a beanshell where I produce a list of the same length, but > with all 'undesired' results removed, so it is a list of strings with > 'null' values mixed in which I feed into a next beanshell for further > operations. Yes Taverna will (currently) not like a list with null values in it. > The output of the second beanshell is a error trace > complaining that 'No value produced fro output variable X' which is the > output variable of the first beanshell and has nothing to do with the > second. > > Is it illegal in Taverna to produce lists with null values? Why is this > error trace on the second beanshell? Usually I would exepect the first > beanshell to come up in bright red if it failed. In the check I just did, the first beanshell did come up red. Can you send me your workflow so I can see what the difference is? Taverna could be "taught" to register null values. The Taverna developers are having a discussion tomorrow morning about Taverna referencing, I'll try to get this discussed. Do you want to be able to store nulls? > (The work around is straight forward - I was just not expecting this to > happen.) > > Best regards, > Anja Alan ------------------------------------------------------------------------------ The ultimate all-in-one performance toolkit: Intel(R) Parallel Studio XE: Pinpoint memory and threading errors before they happen. Find and fix more than 250 security defects in the development cycle. Locate bottlenecks in serial and parallel code that limit performance. http://p.sf.net/sfu/intel-dev2devfeb _______________________________________________ taverna-users mailing list [email protected] [email protected] Web site: http://www.taverna.org.uk Mailing lists: http://www.taverna.org.uk/about/contact-us/
