[jboss-user] [jBPM] - how to set gateway constraints

[casey perkins]

casey perkins [https://community.jboss.org/people/casey_0708] created the discussion

"how to set gateway constraints"

To view the discussion, visit: https://community.jboss.org/message/809934#809934

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hello, I use the xor gateway.but i don't know how to set the constraints on the sequence flow in the web designer.
thx.
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[Shobhit Tyagi]

Shobhit Tyagi [https://community.jboss.org/people/roxy1987] created the discussion

"Re: how to set gateway constraints"

To view the discussion, visit: https://community.jboss.org/message/810022#810022

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To use a xor gate, you need to select the xor gate, click on constraints field in the property view. You will see a pop up like this :

Loading Image... Loading Image...

Click on edit. You will get another pop up like below :

Loading Image... Loading Image...
Variable is a process variable. You can set its value before the xor gate in the flow is reached.
You can set a value similarly in the other constraint as well. Which ever value is matched, it will be returned.
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[casey perkins]

casey perkins [https://community.jboss.org/people/casey_0708] created the discussion

"Re: how to set gateway constraints"

To view the discussion, visit: https://community.jboss.org/message/810180#810180

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hello Shobhit,
thanks for your replying,but I don't use the eclipse to design. I use the drools-guvnor to design.it is said that I should edit the constraints on the sequence flow.
after I edit the constraints using "return i<10;",then start the instance in the jbpm-console.it returns error.
the error says " Exception when trying to evaluate constraint i<10 split".
do you know how to fix it ?
thx.
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[Maciej Swiderski]

Maciej Swiderski [https://community.jboss.org/people/swiderski.maciej] created the discussion

"Re: how to set gateway constraints"

To view the discussion, visit: https://community.jboss.org/message/810230#810230

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make sure you have value assigned to 'i' process variable and make sure you have defined process variable.

HTH
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[casey perkins]

casey perkins [https://community.jboss.org/people/casey_0708] created the discussion

"Re: how to set gateway constraints"

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thanks Maciej,
i have defined process variable,but it still returns error .
is there any way to solve?
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[Sergey Kornilov]

Sergey Kornilov [https://community.jboss.org/people/kornilovs] created the discussion

"Re: how to set gateway constraints"

To view the discussion, visit: https://community.jboss.org/message/810650#810650

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Create package: test_mail_files
create bpmn2 diagram: test_mail
import schema
There is variable "approv" type String. For constraint use java.

For start in jbpm-console
add EmailWorkItemHandler to console-server
generate forms
build package
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[casey perkins]

casey perkins [https://community.jboss.org/people/casey_0708] created the discussion

"Re: how to set gateway constraints"

To view the discussion, visit: https://community.jboss.org/message/811170#811170

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thanks Sergey
i have resolved this problem.I use kcontext.setVariable to set the value
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