3.1.3. Namespaces

Support of namespaces is required by the JSR-170 specification.

Namespaces definition

The default namespaces are registered by repository at the start-up time.

Your custom service can be extended with a set of namespaces with some specific applications, declaring it in the service's configuration file thanks to the eXo component plugin mechanism as described below:


<component-plugin>

    <name>add.namespaces</name>

    <set-method>addPlugin</set-method>

    <type>org.exoplatform.services.jcr.impl.AddNamespacesPlugin</type>

    <init-params>

        <properties-param>

            <name>namespaces</name>

            <property name="test" value="http://www.test.org/test"/>

        </properties-param>

    </init-params>

</component-plugin>

Namespaces altering

The JCR implementation supports the namespaces altering.

Adding a new namespace

ExtendedNamespaceRegistry namespaceRegistry = (ExtendedNamespaceRegistry)

    workspace.getNamespaceRegistry();

    namespaceRegistry.registerNamespace("newMapping", "http://dumb.uri/jcr");

Changing an existing namespace

ExtendedNamespaceRegistry namespaceRegistry = (ExtendedNamespaceRegistry)

    workspace.getNamespaceRegistry();

    namespaceRegistry.registerNamespace("newMapping", "http://dumb.uri/jcr");

    namespaceRegistry.registerNamespace("newMapping2", "http://dumb.uri/jcr");

Removing an existing namespace

ExtendedNamespaceRegistry namespaceRegistry = (ExtendedNamespaceRegistry)

    workspace.getNamespaceRegistry();

    namespaceRegistry.registerNamespace("newMapping", "http://dumb.uri/jcr");

    namespaceRegistry.unregisterNamespace("newMapping");