iPOJO Whiteboard Pattern vs. Aggregate bind

[Michael Hoppe <mi...@gmail.com>]

Hi@all,

one question about the Whiteboard Pattern:

I assume that binding services via Whiteboard Pattern (@Wbp) is always done
after validating the collecting component, while @bind calls for aggregates
can come before validating. Is this correct?

Regards
Michael

Re: iPOJO Whiteboard Pattern vs. Aggregate bind

[Clement Escoffier <cl...@gmail.com>]

Hi,

On 19 oct. 2013, at 15:47, Michael Hoppe <mi...@gmail.com> wrote:

> Hi@all,
> 
> one question about the Whiteboard Pattern:
> 
> I assume that binding services via Whiteboard Pattern (@Wbp) is always done
> after validating the collecting component, while @bind calls for aggregates
> can come before validating. Is this correct?

Yes it is.

However the main difference is about the target.
- An aggregate bind must have a specification (i.e. interface) defined, it receives service objects
- The whiteboard pattern does not target a specification, just services matching the defined filter. It receives service references

Regards,

Clement

> 
> Regards
> Michael


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