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Re: Designer variable definitions and constrains
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created by <a href="http://community.jboss.org/people/tsurdilovic">Tihomir Surdilovic</a> in <i>jBPM</i> - <a href="http://community.jboss.org/message/620140#620140">View the full discussion</a>
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<div class="jive-rendered-content"><p>First, we are putting alot of time into adding designer documentation, so bear with us until this is done. In addition we are working on pretty editors for process and node properties - currently alot of them are text-based. </p><p>To answer your questions:</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>** process variable types **</p><p>Under Properties(BPMN Diagram), your process properties you will find a property called "Variable Definitions" where you can define process variables. Here you can define both the process variable names, as well as their type. For example if you enter there:</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>x:java.lang.String,y:java.lang.Object</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>this will produce the property definitions:</p><p><bpmn2:property id="x" itemSubjectRef="_xItem"/></p><p><bpmn2:property id="y" itemSubjectRef="_yItem"/></p><p>as well as the corresponding item definitions with the provided structureRef attribute values:</p><p><bpmn2:itemDef<span style="color: red;">init</span>ion id="_xItem" structureRef="java.lang.String"/></p><p><bpmn2:itemDef<span style="color: red;">init</span>ion id="_yItem" structureRef="java.lang.Object"/></p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>So the sructure follows $varName:$varType and the whole list is comma-separated</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>** Condition Expression Language  **</p><p><span>Yes, if you do not enter a value in this field, Designer will default to </span><a class="jive-link-external-small" href="http://www.jboss.org/drools/rule" target="_blank">http://www.jboss.org/drools/rule</a><span>. You can enter in values here which are either "drools" or "mvel". For script tasks and onEntry/onExit actions of tasks, the allowed values of the script language are drools and java, with the default value set to </span><a class="jive-link-external-small" href="http://www.java.com/java" target="_blank">http://www.java.com/java</a><span> if you do not enter in the value</span></p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>Hope this helps.</p></div>
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