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Data input objects
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created by <a href="https://community.jboss.org/people/annah">annah</a> in <i>jBPM</i> - <a href="https://community.jboss.org/message/803763#803763">View the full discussion</a>
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<div class="jive-rendered-content"><p>Hi!</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>I need an explanation of how Data Input Objects should work in JBPM. If data input is not available should it block the task?</p><p>From what I've read here <a class="jive-link-external-small" href="http://brsilver.com/bpmn-2-0-mystery-process-datainput-and-dataoutput/" rel="nofollow">http://brsilver.com/bpmn-2-0-mystery-process-datainput-and-dataoutput/</a> it says:</p><blockquote class="jive-quote"><p><span style="color: #151515; font-family: Verdana, Georgia, 'Times New Roman', Times, serif; text-align: justify; background-color: #f8f8ec;">The operational semantics of </span><strong style="color: #151515; font-family: Verdana, Georgia, 'Times New Roman', Times, serif; text-align: justify; background-color: #f8f8ec;">ioSpecifica</strong><strong style="color: #151515; font-family: Verdana, Georgia, 'Times New Roman', Times, serif; text-align: justify; background-color: #f8f8ec;">tion </strong><span style="color: #151515; font-family: Verdana, Georgia, 'Times New Roman', Times, serif; text-align: justify; background-color: #f8f8ec;">and </span><strong style="color: #151515; font-family: Verdana, Georgia, 'Times New Roman', Times, serif; text-align: justify; background-color: #f8f8ec;">inputSet </strong><span style="color: #151515; font-family: Verdana, Georgia, 'Times New Roman', Times, serif; text-align: justify; background-color: #f8f8ec;">say that a </span><strong style="color: #151515; font-family: Verdana, Georgia, 'Times New Roman', Times, serif; text-align: justify; background-color: #f8f8ec;">process </strong><span style="color: #151515; font-family: Verdana, Georgia, 'Times New Roman', Times, serif; text-align: justify; background-color: #f8f8ec;">or </span><strong style="color: #151515; font-family: Verdana, Georgia, 'Times New Roman', Times, serif; text-align: justify; background-color: #f8f8ec;">task </strong><span style="color: #151515; font-family: Verdana, Georgia, 'Times New Roman', Times, serif; text-align: justify; background-color: #f8f8ec;">cannot start until the </span><strong style="color: #151515; font-family: Verdana, Georgia, 'Times New Roman', Times, serif; text-align: justify; background-color: #f8f8ec;">inputSet </strong><span style="color: #151515; font-family: Verdana, Georgia, 'Times New Roman', Times, serif; text-align: justify; background-color: #f8f8ec;">data is available</span></p></blockquote><p><span style="color: #151515; font-family: Verdana, Georgia, 'Times New Roman', Times, serif; text-align: justify; background-color: #f8f8ec;"><br/></span></p><p>So from this explanation I concluded that if I have a human task which has an association to a data input object, the task should not start until this object is available? I've tried a little example, with a simple process shown below but the human task gets activated and I only get a warning message  <span style="font-size: 10pt;">"</span><span style="font-size: 10pt;">Could not find variable scope for variable DataInput_1 </span><span style="font-size: 10pt;">when trying to execute Work Item Human Task. </span><span style="font-size: 10pt;">Continuing without setting parameter.</span><span style="font-size: 10pt;">"</span></p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p><span style="font-size: 10pt;"><a href="https://community.jboss.org/servlet/JiveServlet/showImage/2-803763-20470/example.jpg"><span> https://community.jboss.org/servlet/JiveServlet/downloadImage/2-803763-20470/450-286/example.jpg </span></a></span></p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p><span style="font-size: 10pt;">What I want to achieve is that human task is activated when I insert the required data input to ksession (e.g. some data gets submitted to a system and I pass it to ksession so human task can be executed). How do I have to model the process to achieve this blocking behaviour?</span></p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p><span style="font-size: 10pt;">Thanks!<br/></span></p></div>
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<p style="margin: 0;">Reply to this message by <a href="https://community.jboss.org/message/803763#803763">going to Community</a></p>
<p style="margin: 0;">Start a new discussion in jBPM at <a href="https://community.jboss.org/choose-container!input.jspa?contentType=1&containerType=14&container=2034">Community</a></p>
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