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Feb 16, 2025
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Add info about E4 XPath re-implementation and deprecation #276

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19 changes: 19 additions & 0 deletions news/4.35/platform.html
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Expand Up @@ -176,6 +176,25 @@ <h2>General Updates </h2>
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<tr id="e4-xpath-revised">
<!-- https://github.com/eclipse-platform/eclipse.platform.ui/issues/423
https://github.com/eclipse-platform/eclipse.platform.ui/pull/2290
https://github.com/eclipse-platform/eclipse.platform.ui/pull/2789 -->
<td class="title">E4 XPath supported reimplemented and revised</td>
<td class="content">
<p>
The <em>XPath</em> support of Eclipse E4 (i.e. the Plug-in <code>org.eclipse.e4.emf.xpath</code>) has been reimplemented to be purely based on <code>javax.xml.xpath.XPath</code> provided by the Java standard library.
This enabled the removal of <em>Apache Commons JXPath</em> as a dependency of the Eclipse SDK (and due to joint efforts even of the entire Eclipse Simultaneous Release).
</p>
<p>
Furthermore it has been determined that the <code>XPathContext</code> API provided by the <code>org.eclipse.e4.emf.xpath</code> Plug-in is mostly unused among all Plug-ins of the Eclipse Simultaneous Release.
Therefore the entire <code>org.eclipse.e4.emf.xpath</code> Plug-in and all contained APIs have been marked as deprecated and for removal in a future release.
As a replacement, to query an E4 model using <em>XPath</em> from code, one new method has been added:<br/>
<code>EModelService.findMatchingElements(MApplicationElement searchRoot, String xPath, Class&lt;T&gt; clazz)</code>
</p>
</td>
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<!-- ******************* End of General Updates ************************************* -->
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