<?xml version="1.0" encoding="UTF-8"?>
<process-definition
xmlns="urn:jbpm.org:jpdl-3.2" name="test6">
<start-state name="开始">
<transition name="提交给领导审批" to="decision1"></transition>
</start-state>
<decision name="decision1" expression="#{days gt 10 ? '提交给李四审批':'提交给王五审批'}">
<transition name="提交给李四审批" to="李四审批"></transition>
<transition name="提交给王五审批" to="王五审批"></transition>
</decision>
<task-node name="李四审批" >
<task name="审批">
<assignment actor-id="李四"></assignment>
</task>
<transition name="" to="结束" ></transition>
</task-node>
<task-node name="王五审批">
<task name="审批">
<assignment actor-id="王五"></assignment>
</task>
<transition name="" to="结束"></transition>
</task-node>
<end-state name="结束"></end-state>
</process-definition>
在开始节点往下流转到decision1时，当days变量大于10时，就自动再流转到李四审批，否则流转到王五审批。
当条件判断非常复杂时，就需要使用DecisionHandler
<?xml version="1.0" encoding="UTF-8"?>
<process-definition
xmlns="urn:jbpm.org:jpdl-3.2" name="test7">
<start-state name="开始">
<transition name="提交给领导审批" to="decision1"></transition>
</start-state>
<decision name="decision1">
<handler class="com.ygtim.domain.MyDecisionHandler"></handler>
<transition name="提交给李四审批" to="李四审批"></transition>
<transition name="提交给王五审批" to="王五审批"></transition>
</decision>
<task-node name="李四审批" >
<task name="审批">
<assignment actor-id="李四"></assignment>
</task>
<transition name="" to="结束" ></transition>
</task-node>
<task-node name="王五审批">
<task name="审批">
<assignment actor-id="王五"></assignment>
</task>
<transition name="" to="结束"></transition>
</task-node>
<end-state name="结束"></end-state>
</process-definition>
public class MyDecisionHandler implements DecisionHandler {
/** Comment for <code>serialVersionUID</code> */
private static final long serialVersionUID = -6140889082116291459L;
@Override
public String decide(ExecutionContext executionContext) throws Exception {
long days = (Long)
executionContext.getContextInstance()
.getVariable("days");
if (days > 10) {
return "提交给李四审批";
} else {
return "提交给王五审批";
}
}
}
