5:37 a.m.
Hi, I am tring to use Drools Flow in a B/S project,but get in trouble.
a simple ruleflow.rf file like this:
===Start====
Start------>Action----->Email----->End
====End==
User A log in the system by a browser,press a button,execute the code below:
================
StatefulKnowledgeSession session = …………
session.startProcess("com.sample.ruleflow");
================
it works ok. the "Action" has been done,the Email has been sent, the whole
of flow was finished.
the problem is how to do with the .rf file like this?
==========
Start--->Action1(need user A to do it)---->Action2(need user B to do
it)-->Email-->End
==========
Can anyone please give me an idea ?
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5:49 a.m.
On Mon, Aug 2, 2010 at 12:37 AM, XiaoMiTang <dingyongchang(a)hotmail.com> wrote:
Hi, I am tring to use Drools Flow in a B/S project,but get in trouble.
a simple ruleflow.rf file like this:
===Start====
Start------>Action----->Email----->End
====End==
User A log in the system by a browser,press a button,execute the code below:
================
StatefulKnowledgeSession session = …………
session.startProcess("com.sample.ruleflow");
================
it works ok. the "Action" has been done,the Email has been sent, the whole
of flow was finished.
the problem is how to do with the .rf file like this?
==========
Start--->Action1(need user A to do it)---->Action2(need user B to do
it)-->Email-->End
==========
Can anyone please give me an idea ?
Hi Xiao,
have you taken a look at the Human Task concept in BPMs?
The official documentation[0] has a whole chapter explaining the way
Flow handles it.
Hope it helps.
[0]:
https://hudson.jboss.org/hudson/job/drools/lastSuccessfulBuild/artifact/t...
--
diego
8:45 a.m.
I have taken a look at the Human Task ,but i can not understand it.
The ruleflow.rf file should be split into two ?
===== ruleflow.rf =====
Start--->Action1(need user A to do it)---->Action2(need user B to do
it)-->Email-->End
==========
sub1.rf: Start--->Action1(need user A to do it)---->End
sub2.rf: Start--->Action2(need user B to do it)-->Email-->End
User A log in , execute the code:
session.startProcess("com.sample.sub1");
In action1,create a task by Human task management component:
Task task1 = new Task();
……
client.addTask(task1, null, addTaskResponseHandler);
Then, user B log in,execute:
session.startProcess("com.sample.sub2");
in action2,do something like this:
client.start(task.getId(), "user B", operationResponseHandler);
……
client.complete(task.getId(), "user B", null, operationResponseHandler);
Maybe this can work out the problem,but it is too clumsy.
How to use a Human Task node in the *.rf file? is there an example?
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1:10 p.m.
On Mon, Aug 2, 2010 at 6:45 AM, XiaoMiTang <dingyongchang(a)hotmail.com> wrote:
I have taken a look at the Human Task ,but i can not understand it.
The ruleflow.rf file should be split into two ?
===== ruleflow.rf =====
Start--->Action1(need user A to do it)---->Action2(need user B to do
it)-->Email-->End
==========
sub1.rf: Start--->Action1(need user A to do it)---->End
sub2.rf: Start--->Action2(need user B to do it)-->Email-->End
User A log in , execute the code:
session.startProcess("com.sample.sub1");
In action1,create a task by Human task management component:
Task task1 = new Task();
……
client.addTask(task1, null, addTaskResponseHandler);
Then, user B log in,execute:
session.startProcess("com.sample.sub2");
in action2,do something like this:
client.start(task.getId(), "user B", operationResponseHandler);
……
client.complete(task.getId(), "user B", null, operationResponseHandler);
Maybe this can work out the problem,but it is too clumsy.
How to use a Human Task node in the *.rf file? is there an example?
I would do something like
Start--->Human Task assigned to user A--->Action1---->Human Task
assigned to user B--->Action2-->Email-->End
wdyt?
--
diego
4:28 a.m.
hi diego,thank u for your reply.
As far as I understand, we start the work flow using the code:
session.startProcess("……");
Once it starts,it runs from Start node to End node~
User A runs the code session.startProcess("……"),the work flow starts,runs
step by step:
(1)"Human Task assigned to user A" what you will do with this? create
a new task and add it to DB?
(2)"Action1"
(3) now,it must be stopped,because of the remaining work should be done by
user B,so user A log out.
Several days later,user B log in,he completes the task ,can the work flow be
finished automatically?
if can not ,how do I make the rest the workflow can be completed?
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1:47 p.m.
Hi guys,
You can accomplish your use case following the steps that diego mention.
Take a look at the documentation and at the Human Task module to see how to
use it.
If your process will "run" for long periods, you will need to take a look on
persistence configuration also.
Greetings.
On Mon, Aug 2, 2010 at 11:28 PM, XiaoMiTang <dingyongchang(a)hotmail.com>wrote:
hi diego,thank u for your reply.
As far as I understand, we start the work flow using the code:
session.startProcess("……");
Once it starts,it runs from Start node to End node~
User A runs the code session.startProcess("……"),the work flow starts,runs
step by step:
(1)"Human Task assigned to user A" what you will do with this? create
a new task and add it to DB?
(2)"Action1"
(3) now,it must be stopped,because of the remaining work should be done by
user B,so user A log out.
Several days later,user B log in,he completes the task ,can the work flow
be
finished automatically?
if can not ,how do I make the rest the workflow can be completed?
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3:31 a.m.
I have omitted DefaultProcessEventListener,so the workflow can not be
finished automatically when user B finished the task.
now all is ok,thank you~
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3:45 a.m.
Hi Xiao ,
Could you explain to me also how done the workflow , becuase iam also
looking same solutions.
If you have sample code please update tha too.
Regards
Sony John
XiaoMiTang
<dingyongchang@ho
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Re: [rules-users] How to use Drools
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08/04/2010 09:38
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I have omitted DefaultProcessEventListener,so the workflow can not be
finished automatically when user B finished the task.
now all is ok,thank you~
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5:13 a.m.
Hi, Sony John:
My English is not good,so i can not explain well.
According to the previous mails,you can understand my confusion point.
If a work flow requires more than one person to finish it,like this:
(1)user A ask for a day's leave;
(2)user B approval it;
(3) An E-mail send to user A;
you can creat a *.rf file like this:
Start--->Action1--->Human Task--->Email--->End
In Action1,you can new an application form and add it to the DB using Java
code(this is your business logic,not Drools Flow's)
user A log in the system,run the code:
session.startProcess("……");
the work flow starts,an application form will be created and added to
DB,then,the flow reach the Human Task node, a task will be created and added
to DB.
user A log out.
user B log in.
user B claim and complete the task using Drools Flow's API:
client.claim(task.getId()…………）
//here,do something to approve the application form(your business logic),eg.
change the application form's
// state from 'wait' to 'approved' in DB or something else.
client.complete(task.getId()…………);
then,the work flow will go on,the email will be send automatically……
I just learned Drools a few days,can not guarantee that my understanding is
correct.
You can get some help here:
http://www.packtpub.com/article/drools-jboss-rules-5.0-flow-part2
http://www.packtpub.com/article/drools-jboss-rules-5.0-flow-part2
You can also get some useful code here:
https://www.packtpub.com/support?nid=4009
https://www.packtpub.com/support?nid=4009
Please notice the src under
\5647_Code\5647_Code\parent-1.0-examples\parent-1.0-examples\droolsBookParent\droolsFlow
Good luck~
XiaoMiTang
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8 comments
4 participants
participants (4)
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Diego López León -
Mauricio Salatino -
sony.john＠kie.com.sg -
XiaoMiTang