1.启动流程实例
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// 启动流程实例 @Test public void startProcessInstance() {
// 使用指定key的最新版本的流程定义启动流程实例
ProcessInstance pi = processEngine.getExecutionService().startProcessInstanceByKey( "test" );
System.out.println( "processInstanceId=" + pi.getId());
} |
2.设置流程变量
a) 一个设置流程变量实例
12345678910//设置流程变量
@Test
public
void
setVariable() {
String executionId =
"test.140001"
;
String name =
"请假天数"
;
Integer value =
3
;
//将name为"请假天数",value=3的流程变量设置到executionId为test.140001的执行对象上
processEngine.getExecutionService().setVariable(executionId, name, value);
}
b) 所有设置流程变量方法
用到变量的类型:
12345678Object value =
""
;
String executionId =
""
;
String taskId =
""
;
String name =
""
;
String processDefinitionKey =
""
;
String variableName =
""
;
Set<String> variableNames =
new
HashSet<String>();
Map<String, Object> variablesMap =
new
HashMap<String, Object>();
具体方法:
123456789101112// 根据Execution设置一个流程变量
processEngine.getExecutionService().setVariable(executionId, name, value);
// 根据Execution设置多个流程变量(需要先把流程变量放到一个Map中)
processEngine.getExecutionService().setVariables(executionId, variablesMap);
// 根据Task设置多个流程变量(需要先把流程变量放到一个Map中,通过Task方法,它会先找到它所属的Execution然后设置流程变量)
processEngine.getTaskService().setVariables(taskId, variablesMap);
// 使用指定key的最新版本的流程定义启动流程实例,并设置一些流程变量
processEngine.getExecutionService().startProcessInstanceByKey(processDefinitionKey, variablesMap);
// 办理完指定的任务,并设置一些流程变量
processEngine.getTaskService().completeTask(taskId, variablesMap);
3.获取流程变量
a) 一个获取流程变量实例
12345678910//获取流程变量
@Test
public
void
getVariable() {
String executionId =
"test.140001"
;
String variableName =
"请假天数"
;
//从executionId为test.140001的执行对象上取出流程变量名为"请假天数"的流程变量的value
Integer value = (Integer) processEngine.getExecutionService().getVariable(executionId, variableName);
System.out.println(variableName +
" = "
+ value);
}
b) 所有获取流程变量方法
用到变量的类型:
1234String executionId =
""
;
String taskId =
""
;
String variableName =
""
;
Set<String> variableNames =
new
HashSet<String>();
具体方法:
12345678910111213// 根据Execution获取指定名称的一个流程变量
processEngine.getExecutionService().getVariable(executionId, variableName);
// 根据Execution获取所有流程变量的名称
processEngine.getExecutionService().getVariableNames(executionId);
// 根据Execution获取指定名称的所有流程变量
processEngine.getExecutionService().getVariables(executionId, variableNames);
// 根据Task获取指定名称的一个流程变量
processEngine.getTaskService().getVariable(taskId, variableName);
// 根据Task获取所有流程变量的名称
processEngine.getTaskService().getVariableNames(taskId);
// 根据Task获取指定名称的所有流程变量
processEngine.getTaskService().getVariables(taskId, variableNames);
4.流程变量所支持的值的类型(jBPM User Guide,7.2. Variable types)
jBPM supports following Java types as process variables:
- java.lang.String
- java.lang.Long
- java.lang.Double
- java.util.Date
- java.lang.Boolean
- java.lang.Character
- java.lang.Byte
- java.lang.Short
- java.lang.Integer
- java.lang.Float
- byte[] (byte array)
- char[] (char array)
- hibernate entity with a long id
- hibernate entity with a string id
- serializable
For persistence of these variable, the type of the variable is checked in the order of this list. The first match will determine how the variable is stored.