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POJO getters mapped to task parameters
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created by <a href="https://community.jboss.org/people/eljan">eljan</a> in <i>jBPM</i> - <a href="https://community.jboss.org/message/740507#740507">View the full discussion</a>
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<div class="jive-rendered-content"><p>Hi</p><p>    </p><p>I'm using JBPM 5.3 and I want to have a POJO as a process variable. In my process nodes I want to specify a getter method of this POJO as a value for a task's parameter mapping. Is this possible?</p><p>    </p><p>I have tried it and with old eclipse plugin it works - the getter method executes and node gets returned value as an input parameter.</p><p>  </p><p>However I get following warnings in the server log:</p><p>(null: 39, 49): cvc-datatype-valid.1.2.1: 'data.getMyValue()' is not a valid value for 'NCName'.</p><p>(null: 39, 49): cvc-type.3.1.3: The value 'data.getMyValue()' of element 'sourceRef' is not valid.</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>In bpmn XML I have:</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>       <dataInputAssociation></p><p>        <sourceRef>data.getMyValue()</sourceRef></p><p>        <targetRef>_5_inputInput</targetRef></p><p>      </dataInputAssociation></p><p>   </p><p>When I open this process with the new BPMN 2.0 Eclipse Editor this parameter is not mapped and there doesn't seem to be a way to map it to the getter function. </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>In bpmn XML I now have:</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>       <dataInputAssociation id="DataInputAssociation_1"></p><p>        <targetRef>_5_inputInput</targetRef></p><p>      </dataInputAssociation></p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>When I enter the parameter mapping again in the new editor as an expression with type Java i get following XML:</p><p>  </p><p>      <dataInputAssociation id="DataInputAssociation_1"></p><p>        <sourceRef>data</sourceRef></p><p>        <targetRef>_5_inputInput</targetRef></p><p>        <assignment id="Assignment_1"></p><p><span>          <from xsi:type="tFormalExpression" id="FormalExpression_2" language="</span><a class="jive-link-external-small" href="http://www.java.com/java" target="_blank">http://www.java.com/java</a><span>">data.getMyValue()</from></span></p><p>          <to xsi:type="tFormalExpression">_5_inputInput</to></p><p>        </assignment></p><p>      </dataInputAssociation></p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p> But when I execute this process, I get following error:</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p> ...</p><p>Caused by: javax.xml.xpath.XPathExpressionException</p><p>        at com.sun.org.apache.xpath.internal.jaxp.XPathImpl.compile(XPathImpl.java:402)</p><p>        at org.jbpm.bpmn2.xpath.XPATHAssignmentAction.execute(XPATHAssignmentAction.java:41)</p><p>        at org.jbpm.workflow.instance.node.WorkItemNodeInstance.handleAssignment(WorkItemNodeInstance.</p><p>        ... 26 more</p><p>Caused by: javax.xml.transform.TransformerException: Could not find function: data.getMyValue</p><p>        at com.sun.org.apache.xpath.internal.compiler.XPathParser.error(XPathParser.java:608)</p><p>        at com.sun.org.apache.xpath.internal.compiler.XPathParser.FunctionCall(XPathParser.java:1505)</p><p>...</p><p><span>(full stacktrace at </span><a class="jive-link-external-small" href="http://pastie.org/4045564" target="_blank">http://pastie.org/4045564</a><span> )</span></p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>   </p><p>Why did I get the warnings with the old eclipse plugin? </p><p>Is this functonality not supported by BPMN 2.0 and it just happens to work with the old eclipse editor plugin? </p><p>Or is it that the new BPMN 2.0 editor just doesn't support this yet, but will do so in the future?</p><p>Or am I just doing something wrong? <span> :) </span></p></div>
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