That's correct. I would like to implement a generic service, for example a database connection handler and instantiate preconfigured instances of it without programming. Using my previous pseudocode example:
component.xml of bundle 1: <reference interface="com.acme.IDatabase" bind="setDB" unbind="unsetDB" policy="dynamic" cardinality="1..1" > <property name="databaseurl" value="jdbc:mysql://database1..."/> </reference> component.xml of bundle 2: <reference interface="com.acme.IDatabase" bind="setDB" unbind="unsetDB" policy="dynamic" cardinality="1..1" > <property name="databaseurl" value="jdbc:mssql://database2..."/> </reference> But now I understand from Richard's response that this is not possible. Richard S. Hall wrote: > > > On 6/2/10 12:22, Felix Meschberger wrote: >> Hi, >> >> On 02.06.2010 13:58, Norbert Somlai wrote: >> >>> Hi, >>> >>> I know how to use FileInstall or the Web Console to reconfigure a >>> component. >>> What I could not find is a way to declaratively configure a component >>> instance in component.xml, so I could keep the reference and the >>> configuration at the same place. Something like >>> >>> <reference interface="com.acme.IInterface" bind="setInterface" >>> unbind="unsetInterface" policy="dynamic" cardinality="1..1"> >>> >>> <property name="param1" value="value1"/> >>> ... >>> </reference> >>> >>> and the ComponentContext on activation would contain this property so >>> the >>> new instance could initialize itself with it. >>> >>> Is there a way to achieve something like this with DS or DS+CM? >>> >> I think there is a misconception here: >> >> The reference element is used to declare that the component uses a >> service from the service registry. The attributes define further >> requirements, e.g. the target property can be used to select the actual >> services. >> >> The property element is used to configure the component itself. >> >> The configuration of the referenced service, which I assume is what you >> are referring to, is not the task of the component. That service must >> care for its configuration itself. >> > > I understood it that he wanted to be injected with configured instances, > like if you used the specified properties to create a configured > instance from a component factory and then injected his component with > those specifically configured instances. > > -> richard > >> Regards >> Felix >> >> --------------------------------------------------------------------- >> To unsubscribe, e-mail: [email protected] >> For additional commands, e-mail: [email protected] >> >> > > --------------------------------------------------------------------- > To unsubscribe, e-mail: [email protected] > For additional commands, e-mail: [email protected] > > > -- View this message in context: http://old.nabble.com/Is-configuring-service-properties-the-Spring-DM-way-possible-with-Declarative-Services-tp28753396p28757815.html Sent from the Apache Felix - Users mailing list archive at Nabble.com. --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
