How to manage the Data Association output when no line not returned?

BPM 11 g, I use a Service to select a line in an external database in passing a parameter using a database adapter.  Works fine when a row is returned.  But if no row is returned (which can happen, because no match is not found on the selection based on the value of the parameter), I get an error on the composite as output data Association has return values, including integers, mapped to a data object, I defined in the process.  Well, if no row is found, the integer value is empty and mistakes to try to save him.

How to handle this situation?

The specific message is:

The expression bpmn:getDataOutput('wm91AInterfaceMainCollection') / ns:Wm91AInterfaceMain [1] / ns:board is empty. An attempt to read or copy the referenced data or calculated by the XPath generated invalid data, according to the XML schema, or did not contain some optional data. Ensure that the variable result or expression named in the error message is not empty. Enable related data elements XML schema validation for the enforcement data are valid.

I must be missing something obvious here, but can't find a way to handle this.  Thanks in advance!

Hey Joe,

Of course, others will be have another idea, but opt for the XSLT option for mapping your data.  Using XSLT, you can check for null in an 'if '.

Dan

Tags: Fusion Middleware

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