http://www.aygfsteel.com/jbpm/archive/2007/10/15/153036.html
一個(gè)簡(jiǎn)單的會(huì)簽實(shí)例
作者:tomkoo
以下例子中 采用了jbpm console 的幾個(gè)實(shí)例用戶
項(xiàng)目提交人 : ernie .
主管審批 : bert
會(huì)簽 : ernie , bert , grover
老板審批 : grover
正常流程: 項(xiàng)目金額 >= 500W RMB
提交項(xiàng)目 --> 主管審批 --> 會(huì)簽 --> 老板審批 --> 審批通過(guò)(結(jié)束)
正常流程: 項(xiàng)目金額 < 500W RMB
提交項(xiàng)目 --> 主管審批 --> 會(huì)簽 --> 審批通過(guò)(結(jié)束)
其中主管審批, 會(huì)簽, 老板審批 , 不通過(guò), 全部退回給項(xiàng)目提交人修改.
會(huì)簽中: 所有人全通過(guò), 則通過(guò). 任何一人不通過(guò), 停止其他會(huì)簽任務(wù).退回給提交人.
流程定義如下:
1. <?xml version="1.0" encoding="UTF-8"?>
2.
3. <process-definition xmlns="urn:jbpm.org:jpdl-3.1"
4. name="tc_prj_approval">
5.
6. <swimlane name="initiator" />
7.
8. <!項(xiàng)目提交人 >
9. <swimlane name="requester">
10. <assignment expression="user(ernie)" />
11. </swimlane>
12.
13. <! 主管 >
14. <swimlane name="chief">
15. <assignment expression="user(bert)" />
16. </swimlane>
17.
18. <!老板 >
19. <swimlane name="boss">
20. <assignment expression="user(grover)" />
21. </swimlane>
22.
23. <!會(huì)簽人 >
24. <swimlane name="cosinger">
25. <assignment class="net.chenj.jbpm.sample.CosingerAssiHandler">
26. </assignment>
27. </swimlane>
28. <start-state name="start">
29. <task name="tc_prj_newprj" swimlane="initiator"></task>
30. <transition name="to_submit" to="tc_prj_submit"></transition>
31. </start-state>
32. <task-node name="tc_prj_submit">
33. <task name="tc_prj_submit"></task>
34. <transition name="to_chiefapprove" to="tc_prj_chiefapprove"></transition>
35. </task-node>
36. <task-node name="tc_prj_chiefapprove">
37. <task name="tc_prj_chiefapprove"></task>
38. <transition name="approve" to="tc_prj_countersign"></transition>
39. <transition name="disapprove" to="tc_prj_submit"></transition>
40. </task-node>
41. <task-node name="tc_prj_countersign" signal="last-wait"
42. create-tasks="false">
43. <task name="tc_prj_countersign">
44. <event type="task-end">
45. <action
46. class="net.chenj.jbpm.sample.TaskEndCountersign">
47. </action>
48. </event>
49.
50. </task>
51.
52. <event type="node-enter">
53. <action name="createInstance"
54. class="net.chenj.jbpm.sample.CreateTaskInstanceCountersign">
55. </action>
56. </event>
57.
58. <transition name="approve" to="amount_decision"></transition>
59. <transition name="disapprove" to="tc_prj_submit"></transition>
60. </task-node>
61. <decision name="amount_decision">
62. <transition name="to_bossapprove" to="tc_prj_bossapprove"></transition>
63. <transition name="to_end" to="end1"></transition>
64. </decision>
65. <task-node name="tc_prj_bossapprove">
66. <task name="tc_prj_bossapprove"></task>
67. <transition name="approve" to="end1"></transition>
68. <transition name="disapprove" to="tc_prj_submit">
69. <condition>#{amount >= 500}</condition>
70. </transition>
71. </task-node>
72. <end-state name="end1"></end-state>
73. </process-definition>
74.
會(huì)簽swimlane class
1. package net.chenj.jbpm.sample;
2.
3. import org.jbpm.graph.exe.*;
4. import org.jbpm.taskmgmt.def.*;
5. import org.jbpm.taskmgmt.exe.Assignable;
6.
7. public class CosingerAssiHandler implements AssignmentHandler {
8.
9. private static final long serialVersionUID = 1L;
10.
11. public void assign(Assignable assignable, ExecutionContext executionContext) {
12. // 從數(shù)據(jù)庫(kù)或者ldap 讀取會(huì)簽人設(shè)置
13. String[] a = { "ernie", "bert", "grover" };
14. assignable.setPooledActors(a);
15. }
16.
17. }
18.
創(chuàng)建會(huì)簽任務(wù)實(shí)現(xiàn)類
1. package net.chenj.jbpm.sample;
2.
3. import org.jbpm.graph.def.ActionHandler;
4. import org.jbpm.graph.exe.ExecutionContext;
5. import org.jbpm.graph.exe.Token;
6. import org.jbpm.graph.node.TaskNode;
7. import org.jbpm.taskmgmt.def.Task;
8. import org.jbpm.taskmgmt.exe.TaskMgmtInstance;
9.
10. public class CreateTaskInstanceCountersign implements ActionHandler {
11.
12. private static final long serialVersionUID = 1L;
13.
14. public void execute(ExecutionContext executionContext) throws Exception {
15.
16. Token token = executionContext.getToken();
17. TaskMgmtInstance tmi = executionContext.getTaskMgmtInstance();
18. TaskNode taskNode = (TaskNode) executionContext.getNode();
19. Task task = taskNode.getTask("tc_prj_countersign");
20. // 從數(shù)據(jù)庫(kù)或者ldap 讀取會(huì)簽人設(shè)置創(chuàng)建任務(wù)實(shí)例
21. tmi.createTaskInstance(task, token).setActorId("ernie");
22. tmi.createTaskInstance(task, token).setActorId("bert");
23. tmi.createTaskInstance(task, token).setActorId("grover");
24.
25. }
26.
27. }
結(jié)束不通過(guò)時(shí)結(jié)束其他會(huì)簽任務(wù)實(shí)現(xiàn)
1. package net.chenj.jbpm.sample;
2.
3. import java.util.Collection;
4. import java.util.Iterator;
5. import org.jbpm.graph.def.ActionHandler;
6. import org.jbpm.graph.exe.ExecutionContext;
7. import org.jbpm.taskmgmt.exe.TaskInstance;
8. import org.jbpm.taskmgmt.exe.TaskMgmtInstance;
9.
10. public class TaskEndCountersign implements ActionHandler {
11.
12. private static final long serialVersionUID = 1L;
13.
14. public void execute(ExecutionContext executionContext) throws Exception {
15.
16.
17. boolean isDisapprove = Boolean.valueOf((String) executionContext
18. .getVariable("isDisapprove"));
19. // 如果有一個(gè)任務(wù)實(shí)例拒絕通過(guò)則結(jié)束除當(dāng)前任務(wù)實(shí)例外其他任務(wù)實(shí)例
20. if (isDisapprove) {
21. TaskMgmtInstance tmi = executionContext.getTaskMgmtInstance();
22. TaskInstance ti = executionContext.getTaskInstance();
23. final String actorId = ti.getActorId();
24. Collection c = tmi.getSignallingTasks(executionContext);
25. for (Iterator it = c.iterator(); it.hasNext();) {
26. TaskInstance task = (TaskInstance) it.next();
27. if (!(actorId.equals(task.getActorId())) && (!task.hasEnded())) {
28. task.end("disapprove");
29. }
30. }
31. }
32.
33. }
34.
35. }
task-node"主管會(huì)計(jì)復(fù)核"則是我們需要進(jìn)行會(huì)簽的節(jié)點(diǎn)。在這個(gè)節(jié)點(diǎn)我們?cè)O(shè)置了幾個(gè)重要的屬性：
1) signal="last-wait",這個(gè)屬性決定了該節(jié)點(diǎn)將在完成該節(jié)點(diǎn)內(nèi)的所有Task的TaskInstance以后才會(huì)進(jìn)入下一個(gè)節(jié)點(diǎn)。)
2) create-tasks="false",這個(gè)屬性決定了在進(jìn)入該節(jié)點(diǎn)的時(shí)候，不會(huì)自動(dòng)為該節(jié)點(diǎn)的任何Task創(chuàng)建任何的TaskInstance。因?yàn)槲覀冃枰鶕?jù)會(huì)簽的人員來(lái)自己創(chuàng)建TaskInstance。
1. <
eventtype="node-enter">
進(jìn)入流程節(jié)點(diǎn)的時(shí)候，執(zhí)行ActionHandler類com.sky.plugin.jbpm.def.DynamicCreateTaskInstance，用來(lái)動(dòng)態(tài)生成TaskInstance。
2. <
eventtype="
task-end">
Task結(jié)束的時(shí)候調(diào)用com.sky.plugin.jbpm.def.ConuntersignActionHandler進(jìn)行會(huì)簽處理。判斷會(huì)簽路徑來(lái)決定會(huì)簽的執(zhí)行和走向。
參考文章
http://linliangyi2007.javaeye.com/blog/176356
http://tomkoo.javaeye.com/blog/24690
http://cache.baidu.com/c?m=9d78d513d99405f804ab837e7c509c244e4380127a84914c68d5e35f93124c403731bfed3365505adc9f3a2143b8482ff7ed7337721420c0c39bcc198af0c53f2fff76692f01c41c539504afca4322ca2b&p=9174c64ad1830ac308e2957e1e55&user=baidu