Re: Re: Integration with Drools rule engine

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Hi Sasa,

Thanks a lot for the support and guidance you provided.

One question i have now is 

can we create and deploy a process dynamically using API in shark?

What level of support is available for Integration with
Calendaring/Scheduling?

Is there a auditing support?

Thanks,
Ajai G


sasaboy wrote:
> 
> Hi,
> 
> 1. I've already written in previous post that shark can expose its API 
> through the WebServices, and thus it allows you to get all the possible 
> definitions (in fact factories that represent certain definition in the 
> runtime) and to instantiate the process based on the chosen definition
> 
> 2. If you mean compensation that can be modeled in designed time, yes,  in
> XPDL you can do such things. In the runtime, shark has fully
> transactional behavior (through JTA and 2phase commit) - either
> everything belonging to a transaction succeeds and gets commited to DB, 
> or everything is rolled back. Thanks to JTA, you can have your
> application which integrates shark as POJO talking to its own
> application DB and Shark talking to its database, and if anything fails 
> on your app DB side or on the shark side, both app and shark DB state 
> will be rolled back.
> 
> 3. Process instance can be SUSPENDED and then RESUMED (the same applies 
> to activity instances)
> 
> 4. Don't know what you meant by that? If you mean to wait for some 
> external event to continue, then yes, but this is up to the
> implementation of appropriate automatic activity (so called ToolAgent 
> implementation)...
> 
> 
> Greetings,
> Sasa.
> 
> Ajai wrote:
>> Hi Sasa,
>> Thanks a lot for the response.
>> I need some more details regarding Shark to complete our evaluation. 1.
> Can a process definition be exposed as a service
>> 2. Is there a Process compensation (Process roll back/Exception
> handling)
>> 3. Can a process instance be stopped and resumed again.
>> 4. Can a process be made wait asynchronously.
>> Thanks again for the response,
>> Regards
>> Ajai G
>> Sasa Bojanic wrote:
>>
>>> Hi,
>>> I think the integration with Drools shouldn't be a problem. The
> question
>>> is for which purpose you want to integrate it?
>>> If it is for evaluating of transition condition expressions, you can 
> just write your own Scripting interface implementation...
>>> About other questions:
>>> 1. the definitions are versioned. E.g., when you update XPDL existing
> in
>>> the system (which can contain of many process definitions), the new 
> definition (its representation in the runtime) gets new version.
> Process
>>> instances running on old definitions continue running with the old one,
> 
>>> and newly created processes run on new definitions.
>>> 2. Yes, you can communicate with Shark through Shark's WebServices API
> 3. Yes, inside the process, there can be tool agent (automatic)
> activity
>>> which can interact with WebServices, get some information, put it back 
> into the process and continue with the process
>>> 4. Yes
>>> 5. Shark is typically embedded into your application (when you use it 
> through its POJO API), and in that case authorization is something you 
> do within your application. However, shark has Security interface (we 
> normally configure shark not to use it, and we have only dummy 
> implementation of this interface), and if you provide the custom 
> implementation of this interface, you can do authorization.
>>> 6. This is of course supported (we completely support XPDL1.0). You can
> 
>>> call sub-flow from the main flow either synchronously (where main flow 
> initiates sub flow by passing certain information, waits for sub flow
> to
>>> finish, gets back the results of the sub flow and then continues) or 
> asynchronously (where main flow initiates sub flow and passes
>>> information to sub flow, and continues immediately without waiting sub
> flow)
>>> Regards,
>>> Sasa.
>>> Ajai wrote:
>>>
>>>> Hi,
>>>> We are in the process of evaluating a Workflow engine that can be
> integrated
>>>> with Drools rule engine. Can Enhydra shark be integrated with Drools
> rule
>>>> engine.
>>>> Also please tell us the following features are available:
>>>> 1. versioning of process definition
>>>> 2. Can web service act as a input
>>>> 3. Can  Web service be actor in process
>>>> 4. Process steps can be assigned to Roles, and User in Roles
>>>> 5. Authorization mechanism.
>>>> 6. Creating a sub flow from a main flow.
>>>> Please let us know the inputs.
>>>> Thanks in advance
>>>> Regards
>>>> Ajai G
>>>>
>>>>
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>>>
>>
> 
> 
> 
> 
> 
> 
> 
> 
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> 

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