ipojo/composite/src/main/resources/metadata.xml

<ipojo>
	<!-- Composite Handler -->
	<handler
		classname="org.apache.felix.ipojo.composite.instance.InstanceHandler"
		name="instance" type="composite" architecture="false" level="1">
		<requires filter="(factory.state=1)" field="m_factories"
			optional="true">
			<callback type="bind" method="bindFactory" />
			<callback type="unbind" method="unbindFactory" />
		</requires>
	</handler>
	<handler
		classname="org.apache.felix.ipojo.composite.service.instantiator.ServiceDependencyHandler"
		name="subservice" type="composite" architecture="false">
	</handler>
	<handler
		classname="org.apache.felix.ipojo.composite.service.provides.ProvidedServiceHandler"
		name="provides" type="composite" architecture="false" level="3">
	</handler>
	<handler
		classname="org.apache.felix.ipojo.composite.architecture.ArchitectureHandler"
		name="architecture" type="composite" architecture="false">
		<provides>
			<property field="m_name" name="instance.name" value="" />
		</provides>
	</handler>
</ipojo>