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https://issues.apache.org/jira/browse/FELIX-1906?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Clement Escoffier resolved FELIX-1906.
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Resolution: Fixed
Resolved in the trunk (r. 885210)
- the dependency model was modified to support such callback
- the handlers was udpdated to reflect such modification
- the API was extended
- the annotation (modified) was added
- the XSD schema was extended and uploaded (will be available after the next
synchronization)
> Allow calling a method when service properties of an already injected service
> are modified
> ------------------------------------------------------------------------------------------
>
> Key: FELIX-1906
> URL: https://issues.apache.org/jira/browse/FELIX-1906
> Project: Felix
> Issue Type: Improvement
> Components: iPOJO
> Affects Versions: iPOJO-1.4.0
> Reporter: Clement Escoffier
> Assignee: Clement Escoffier
> Fix For: iPOJO-1.6.0
>
>
> iPOJO provides bind and unbind callback to notify the arrival and the
> departure of a service. Currently, service modification was mapped as follows:
> - if the service was not matching and now matches : call bind
> - if the service was matching and now does no more match : call unbind
> - if a service was matching and still matches : ignore
> The issue modifies the third case to call a 'modify' callback.
> Service dependencies will support a new 'type' : modify; such as in
> <component
>
> classname="org.apache.felix.ipojo.test.scenarios.component.CheckServiceProvider"
> name="ObjectModifyCheckServiceProvider" architecture="true">
> <requires field="fs">
> <callback type="bind" method="objectBind" />
> <callback type="unbind" method="objectUnbind" />
> <callback type="modified" method="objectModify" />
> </requires>
> <provides />
> </component>
> The equivalent annotation will be also provided:
> @Bind(id="mod")
> public void bindMod() { }
>
> @Unbind(id="mod")
> public void unbindMod() { }
>
> @Modified(id="mod")
> public void modifyMod() { }
> So, the new mapping will be:
> - if the service was not matching and now matches : call bind
> - if the service was matching and now does no more match : call unbind
> - if a service was matching and still matches : modified method called
> The callback supports regular arguments (no arg, service object, service
> reference, service object + map, service object + dictionary ...)
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