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Problem cycles dependency plug-in - Eclipse OSGI

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  Problem cycles dependency plug-in - Eclipse OSGI Andrea Checchia <andrew1buffon@gmail.com> - 2014-01-07 00:37 -0800
    Re: Problem cycles dependency plug-in - Eclipse OSGI Jeff Higgins <jeff@invalid.invalid> - 2014-01-07 09:19 -0500
    Re: Problem cycles dependency plug-in - Eclipse OSGI Marcel Müller <news.5.maazl@spamgourmet.org> - 2014-01-07 22:26 +0100

#27249 — Problem cycles dependency plug-in - Eclipse OSGI

Good morning everyone.

I have created in Eclipse a plug-in Fragment-Project, called Project B. 
Project B depends on a Required Plug-ins that will call Project A, it is normal plug-in project, which in turn depends on other plug-in, for example "org.adempiere.base" - "org.adempiere.ui" - "org.adempiere.ui.zk" ......

When I compile my Project B, there is a situation of loop cycles stops me compile the project.
How can I fix this problem, please?


Andrew

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#27250

On 01/07/2014 03:37 AM, Andrea Checchia wrote:
> Good morning everyone.
>
> I have created in Eclipse a plug-in Fragment-Project, called Project B.
> Project B depends on a Required Plug-ins that will call Project A, it is normal plug-in project, which in turn depends on other plug-in, for example "org.adempiere.base" - "org.adempiere.ui" - "org.adempiere.ui.zk" ......
>
> When I compile my Project B, there is a situation of loop cycles stops me compile the project.
> How can I fix this problem, please?
>
>
> Andrew
>
Wow. org.adempiere.* looks like a big complex project.
Probably best to ask at that community how to sort build process.
There's a link from their Wiki Main page:
<http://wiki.idempiere.org/en/Main_Page>
"If no one is answering you maybe you need to know How To Ask Questions 
The Smart Way"
<http://www.catb.org/esr/faqs/smart-questions.html>

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#27252

On 07.01.14 09.37, Andrea Checchia wrote:
> Good morning everyone.
>
> I have created in Eclipse a plug-in Fragment-Project, called Project B.
> Project B depends on a Required Plug-ins that will call Project A, it is normal plug-in project, which in turn depends on other plug-in, for example "org.adempiere.base" - "org.adempiere.ui" - "org.adempiere.ui.zk" ......
>
> When I compile my Project B, there is a situation of loop cycles stops me compile the project.
> How can I fix this problem, please?

AFAIK Java/Eclipse can't handle cyclic dependencies. It might work if 
the dependencies are build step by step but a clean build will not run.

In such situations I always split the projects in a way that the 
dependencies build a directed graph. I.e. extract the part of A where B 
depends on into a separate jar file and the part of B where A depends on 
also. In some cases a fifth project may be needed where both extracted 
projects depend on. It might also be required to apply PIMPL to remove 
dependencies.

If nothing helps you might create a mock project with the public API but 
without any content and, of course, no dependencies. This project is 
only used to compile the dependent project. It is never used at run 
time. I have seen something like that at SAP PI.

hth

Marcel

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