[jira] [Closed] (FELIX-2815) Difference between "instance" and "provides"

["Clement Escoffier (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/FELIX-2815?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Clement Escoffier closed FELIX-2815.
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> 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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