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apache-felix-ipojo-header
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HTML

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<div class="content">

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Using XML Schemas
iPOJO provides XML schemas to check iPOJO descriptors (i.e. 
...
 metadata.xml). 
...
 Several 
...
 schemas 
...
 are 
...
 provided 
...
 in 
...
 order 
...
 to 
...
 describe 
...
 the 
...
 core 
...
 syntax, 
...
 compositions 
...
 and 
...
 external 
...
 handlers.
 Center
_

{div:class=borderedTable}
|| Schema || URL || 
| iPOJO Core | [
 Schema 
 URL 
 iPOJO Core 
http://felix.apache.org/ipojo/schemas/CURRENT/core.xsd
] |
| iPOJO Composite | [
 iPOJO Composite 
http://felix.apache.org/ipojo/schemas/CURRENT/composite.xsd
] |
| Temporal Dependency Handler | [
 Temporal Dependency Handler 
http://felix.apache.org/ipojo/schemas/CURRENT/temporal.xsd
] |
| Whiteboard pattern handler | [
 Whiteboard pattern handler 
http://felix.apache.org/ipojo/schemas/CURRENT/whiteboard-pattern.xsd
] |
| Extender pattern handler | [
 Extender pattern handler 
http://felix.apache.org/ipojo/schemas/CURRENT/extender-pattern.xsd
] |
| Event Admin handlers | [
 Event Admin handlers 
http://felix.apache.org/ipojo/schemas/CURRENT/event-admin.xsd
] |
| JMX handler | [
 JMX handler 
http://felix.apache.org/ipojo/schemas/CURRENT/jmx.xsd
] |
{div}
_
Note:
...
 the 
...
 schemas 
...
 are 
...
 also 
...
 provided 
...
 inside 
...
 implicated 
...
 bundles.
...

Note:
...
 to 
...
use the 'dev' schemas, 
...
 replace 
...
CURRENT
...
 by 
...
SNAPSHOT
...
 in 
...
 the 
...
 URL.
...

 To 
...
 use 
...
 those 
...
 schemas 
...
 you 
...
 have 
...
 to 
...
 declares 
...
 those 
...
 schemas 
...
 in 
...
 your 
...
 metadata.xml 
...
 file 
...
 such 
...
 as 
...
 in 
...
 the 
...
 next 
...
 snippet 
...
 using 
...
 the 
...
 iPOJO 
...
 core 
...
 XML-schema:
 Code Block
xml
xml

{code:xml}
<ipojo 
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="org.apache.felix.ipojo http://felix.apache.org/ipojo/schemas/CURRENT/core.xsd" 
    xmlns="org.apache.felix.ipojo">
    <component classname="..." ....>
    </component>
</ipojo>
{code}

First, 
...
 declares 
...
 the 
...
 'XMLSChema-instance' 
...
 namespace. 
...
 Then, 
...
 declares 
...
 used 
...
 namespaces 
...
 and 
...
 schemas 
...
 in 
...
 the 
...
 'xsi:schemaLocation' 
...
 attribute. 
...
 This 
...
 attribute 
...
 contains 
...
 pairs 
...
 'namespace 
...
 url' 
...
 separated 
...
 by 
...
 spaces. 
...
 Finally, 
...
 declares 
...
 the 
...
 default 
...
 namespace 
...
 to 
...
 "org.apache.felix.ipojo". 
...

 You 
...
 can 
...
 also 
...
 use 
...
 several 
...
 schemas 
...
 in 
...
 the 
...
 same 
...
 descriptor 
...
 by 
...
 using 
...
 a 
...
 header 
...
 like:
 Code Block
xml
xml

{code:xml}
<ipojo xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xsi:schemaLocation="org.apache.felix.ipojo http://felix.apache.org/ipojo/schemas/CURRENT/core.xsd
	    org.apache.felix.ipojo.extender http://felix.apache.org/ipojo/schemas/CURRENT/extender-pattern.xsd"
	xmlns="org.apache.felix.ipojo"
	xmlns:extender="org.apache.felix.ipojo.extender">
	<component
		classname="org.apache.felix.ipojo.junit4osgi.impl.JunitExtender">
		<extender:extender extension="Test-Suite"
			onArrival="onBundleArrival" onDeparture="onBundleDeparture" />
		<callback transition="invalidate" method="stopping" />
		<callback transition="validate" method="starting" />
		<provides />
	</component>
	<instance
		component="org.apache.felix.ipojo.junit4osgi.impl.JunitExtender" />
</ipojo>
{code}

The 
...
 only 
...
 difference 
...
 is 
...
 contained 
...
 in 
...
 the 
...
 'schemaLocation' 
...
 attribute, 
...
 which 
...
 contains 
...
 several 
...
 pairs. 
...
 You 
...
 also 
...
 need 
...
 to 
...
 declare 
...
 the 
...
 namespace 
...
 of 
...
 the 
...
 used 
...
 external 
...
 handler.
...

 If 
...
 you 
...
 declare 
...
 schemas, 
...
 the 
...
 iPOJO 
...
 manipulator 
...
 automatically 
...
 checks 
...
 the 
...
 validity 
...
 of 
...
 the 
...
 descriptor 
...
 against 
...
 the 
...
 declared 
...
 schemas. 
...
 Moreover, 
...
 if 
...
 you 
...
 use 
...
 'advanced' 
...
 XML 
...
 Editor 
...
 supporting 
...
 schemas, 
...
 editing 
...
 iPOJO 
...
 descriptors 
...
 should 
...
 be 
...
 eased 
...
 with 
...
 auto-completion 
...
 features.
...
Avoid 
...
 downloading 
...
 XML 
...
 Schemas 
...
 during 
...
 the 
...
 build 
...
 process
...
The 
...
 manipulator 
...
 embeds 
...
 the 
...
 iPOJO 
...
 XML 
...
 Schemas 
...
 to 
...
 avoid 
...
 using 
...
 a 
...
 network 
...
 connection 
...
 to 
...
 download 
...
 them 
...
 during 
...
 the 
...
 validation 
...
 process. 
...
 Keep 
...
 the 
...
 same 
...
 url, 
...
 the 
...
 manipulator 
...
 will 
...
 just 
...
 resolve 
...
 the 
...
 URL 
...
 differently 
...
 to 
...
 use 
...
 embedded 
...
 schemas. 
...
 You 
...
 can 
...
 also 
...
 skipped 
...
 this 
...
 shortcut 
...
 thanks 
...
 the 
...
 the 
...
ignoreEmbeddedSchemas
...
 parameter 
...
 (refer 
...
 to 
...
 the 
...
ant 
...
 task 
...
 guide
...
 and 
...
 to 
...
 the 
...
maven 
...
 plugin 
...
 guide
...
 for 
...
 further 
...
 information about configuration). 
...


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apache-felix-ipojo-footer
...