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https://issues.apache.org/jira/browse/FELIX-2815?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12991248#comment-12991248
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Andriyko commented on FELIX-2815:
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Firstly thank you for the explanation.
But, I was referring to the need for the @Provides annotation. I thought it was
redundant - but now that I think about it, I see that some components use the
@Requires annotation, so we must explicitly say what we want the component to
act like.
Regarding my note about being unable to find the page you are referring to, it
was more of a complaint about the navigation system of the site, and not really
an inquiry of how to find it :-) There are a few problems:
1. Biggest problem is that user is not able to see where they are currently on
the site. There is not "breadcrumbs", or selected item in the navigation.
2. Next - the name of the pages do not match their name in the Navigation menu.
Even in this case the name of the page is "iPOJO Factories Principles" while it
is called "Factories and Instances" in the navigation (note here, that even you
got it wrong ;-)
Thank you very much for the help. It is slowly coming together now.
> Difference between "instance" and "provides"
> --------------------------------------------
>
> Key: FELIX-2815
> URL: https://issues.apache.org/jira/browse/FELIX-2815
> Project: Felix
> Issue Type: Bug
> Components: iPOJO
> Reporter: Andriyko
> Assignee: Clement Escoffier
> Labels: documentation, felix,, ipojo
>
> In the documentation on iPOJO Services:
> http://felix.apache.org/site/providing-osgi-services.html#ProvidingOSGiservices-Instancereconfiguration
> There is no clear explanation of what is the difference between <provides>
> and <instance>.
> It is not clear why "instance" is needed at all.
> Under the "Service Properties" heading on the page, the two are used
> interchangeably in the examples.
> For example, first "property" is configured with <provides>:
> <component classname="...FooProviderType1">
> <provides>
> <property name="foo" field="m_foo" value="Foo"/>
> <property name="static" type="java.lang.String"
> value="this is a static property"/>
> </provides>
> </component>
> and then immediately, with no explanation what-so-ever and <intsance> is
> used, with a tiny explanation that "The value can be given in the instance
> configuration":
> <instance component="...FooProviderType1">
> <property name="foo" value="My New Foo Value"/>
> <property name="static" value="My Value For Static"/>
> </instance>
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