Best practices: Event vs. Service

[Rene Scheibe]

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What we understand so far:

Event (<event type="java" .../>):
- - close to the http request/response
- - input validations
- - parameter conversions
- - put results into request as attributes

Service (<event type="service" .../>):
- - well-defined IN and OUT parameters via service definition
- - business logic
- - DB operations

Usage statistics within OFBiz:
<event type="service"' /> 1542
<event type="java"'    /> 283
<event type="groovy"'  /> 16
<event type="simple"'  /> 95
runSync  1056
runAsync 171
<call-service /> 1375


Questions (best practices):
1. When shall an event and when service be used?

2. How and where to call services?
- - from controller as an event with type service
- - from within an event


Regards,
Rene
- --
René Scheibe * [hidden email]
TNG Technology Consulting GmbH, Betastr. 13a, 85774 Unterföhring
Geschäftsführer: Henrik Klagges, Gerhard Müller, Christoph Stock
Sitz: Unterföhring * Amtsgericht München * HRB 135082
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[BJ Freeman]

There is series of video that clear this up
https://cwiki.apache.org/confluence/display/OFBTECH/Home
The Events are through the Controller from Post from pages.
They can contain Services
Services can be Simple a lot are Java.
Simple is just that, the simplest way to deal with ofbiz data model.
https://cwiki.apache.org/confluence/display/OFBIZ/Mini-Language+Guide
There is another Event that is through the service engine.
these describe in
http://ofbiz.apache.org/docs/serviceconfig.html

Rene Scheibe sent the following on 7/29/2010 4:40 AM:

> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA1
>
> What we understand so far:
>
> Event (<event type="java" .../>):
> - - close to the http request/response
> - - input validations
> - - parameter conversions
> - - put results into request as attributes
>
> Service (<event type="service" .../>):
> - - well-defined IN and OUT parameters via service definition
> - - business logic
> - - DB operations
>
> Usage statistics within OFBiz:
> <event type="service"' />  1542
> <event type="java"'    />  283
> <event type="groovy"'  />  16
> <event type="simple"'  />  95
> runSync  1056
> runAsync 171
> <call-service />  1375
>
>
> Questions (best practices):
> 1. When shall an event and when service be used?
>
> 2. How and where to call services?
> - - from controller as an event with type service
> - - from within an event
>
>
> Regards,
> Rene
> - --
> René Scheibe * [hidden email]
> TNG Technology Consulting GmbH, Betastr. 13a, 85774 Unterföhring
> Geschäftsführer: Henrik Klagges, Gerhard Müller, Christoph Stock
> Sitz: Unterföhring * Amtsgericht München * HRB 135082
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> Version: GnuPG v1.4.10 (GNU/Linux)
> Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/
>
> iEYEARECAAYFAkxRaLoACgkQUXs9EHvIuCqSAgCfau9FRmedaREbvbLOZLyta28i
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[Jacques Le Roux]

Rene,

You may also have a look at this thread http://markmail.org/message/dklkv6xxq67sle2n
I have still no found the time to put it cleanly in the FAQ, could you help when you will have used it?

Jacques

From: "BJ Freeman" <[hidden email]>

> There is series of video that clear this up
> https://cwiki.apache.org/confluence/display/OFBTECH/Home
> The Events are through the Controller from Post from pages.
> They can contain Services
> Services can be Simple a lot are Java.
> Simple is just that, the simplest way to deal with ofbiz data model.
> https://cwiki.apache.org/confluence/display/OFBIZ/Mini-Language+Guide
> There is another Event that is through the service engine.
> these describe in
> http://ofbiz.apache.org/docs/serviceconfig.html
>
> Rene Scheibe sent the following on 7/29/2010 4:40 AM:
>> -----BEGIN PGP SIGNED MESSAGE-----
>> Hash: SHA1
>>
>> What we understand so far:
>>
>> Event (<event type="java" .../>):
>> - - close to the http request/response
>> - - input validations
>> - - parameter conversions
>> - - put results into request as attributes
>>
>> Service (<event type="service" .../>):
>> - - well-defined IN and OUT parameters via service definition
>> - - business logic
>> - - DB operations
>>
>> Usage statistics within OFBiz:
>> <event type="service"' />  1542
>> <event type="java"'    />  283
>> <event type="groovy"'  />  16
>> <event type="simple"'  />  95
>> runSync  1056
>> runAsync 171
>> <call-service />  1375
>>
>>
>> Questions (best practices):
>> 1. When shall an event and when service be used?
>>
>> 2. How and where to call services?
>> - - from controller as an event with type service
>> - - from within an event
>>
>>
>> Regards,
>> Rene
>> - --
>> René Scheibe * [hidden email]
>> TNG Technology Consulting GmbH, Betastr. 13a, 85774 Unterföhring
>> Geschäftsführer: Henrik Klagges, Gerhard Müller, Christoph Stock
>> Sitz: Unterföhring * Amtsgericht München * HRB 135082
>> -----BEGIN PGP SIGNATURE-----
>> Version: GnuPG v1.4.10 (GNU/Linux)
>> Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/
>>
>> iEYEARECAAYFAkxRaLoACgkQUXs9EHvIuCqSAgCfau9FRmedaREbvbLOZLyta28i
>> /XgAniNxWw8exGwVWkrSdm2EE5MmpdnE
>> =2cdf
>> -----END PGP SIGNATURE-----
>>
>