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<td class="confluenceTd"><p> Maintainer: </p></td>
<td class="confluenceTd"><p> <a class="confluence-link confluence-userlink" data-username="chorner" href="/display/~chorner" data-linked-resource-id="30122" data-linked-resource-type="userinfo" username="chorner" data-linked-resource-default-alias="Cory Horner" data-base-url="http://docs.codehaus.org">Cory Horner</a> </p></td>
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<td class="confluenceTd"><p> Status: </p></td>
<td class="confluenceTd"><p> <table class="wysiwyg-macro" data-macro-name="excerpt" data-macro-parameters="atlassian-macro-output-type=INLINE" style="background-image: url(/plugins/servlet/confluence/placeholder/macro-heading?definition=e2V4Y2VycHQ6YXRsYXNzaWFuLW1hY3JvLW91dHB1dC10eXBlPUlOTElORX0&amp;locale=en_GB&amp;version=2); background-repeat: no-repeat;" data-macro-body-type="RICH_TEXT"><tr><td class="wysiwyg-macro-body"><p><img class="emoticon emoticon-yellow-star" data-emoticon-name="yellow-star" border="0" src="/s/en_GB/3278/15/_/images/icons/emoticons/star_yellow.png" alt="(star)" title="(star)" /> <img class="emoticon emoticon-yellow-star" data-emoticon-name="yellow-star" border="0" src="/s/en_GB/3278/15/_/images/icons/emoticons/star_yellow.png" alt="(star)" title="(star)" /> <img class="emoticon emoticon-yellow-star" data-emoticon-name="yellow-star" border="0" src="/s/en_GB/3278/15/_/images/icons/emoticons/star_yellow.png" alt="(star)" title="(star)" /> <img class="emoticon emoticon-yellow-star" data-emoticon-name="yellow-star" border="0" src="/s/en_GB/3278/15/_/images/icons/emoticons/star_yellow.png" alt="(star)" title="(star)" /> </p></td></tr></table> </p></td>
</tr>
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<td class="confluenceTd"><p> Email Help: </p></td>
<td class="confluenceTd"><p> Geotools-gt2-users@lists.sourceforge.net </p></td>
</tr>
<tr>
<td class="confluenceTd"><p> Volunteer: </p></td>
<td class="confluenceTd"><p> geotools-devel@lists.sourceforge.net </p></td>
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</tbody></table>

<h2>Recent Development and Status</h2>

<h3>Status on <a class="confluence-link" href="/display/GEOTOOLS/2.2.x" data-linked-resource-id="47446" data-linked-resource-type="page" data-linked-resource-default-alias="2.2.x" data-base-url="http://docs.codehaus.org">2.2.x</a></h3>

<p>For the stable <a class="confluence-link" href="/display/GEOTOOLS/2.2.x" data-linked-resource-id="47446" data-linked-resource-type="page" data-linked-resource-default-alias="2.2.x" data-base-url="http://docs.codehaus.org">2.2.x</a> branch the Filter module has:</p>
<ul class="alternate">
	<li>QA Check: FilterFactoryFinder created allowing access to default implementation</li>
	<li>QA Check: FilterFactory has been made into an interface</li>
	<li>Filter 1.1 SortBy methods added to allow generation of FeatureList</li>
	<li>Aggregate Functions added, with optimized implementations for JDBC FeatureCollections</li>
</ul>

<h3>Status on <a class="confluence-link" href="/display/GEOTOOLS/2.3.x" data-linked-resource-id="47443" data-linked-resource-type="page" data-linked-resource-default-alias="2.3.x" data-base-url="http://docs.codehaus.org">2.3.x</a></h3>

<p>For the stable <a class="confluence-link" href="/display/GEOTOOLS/2.3.x" data-linked-resource-id="47443" data-linked-resource-type="page" data-linked-resource-default-alias="2.3.x" data-base-url="http://docs.codehaus.org">2.3.x</a> branch the Filter module has:</p>
<ul class="alternate">
	<li>Transitioned to GeoAPI interfaces</li>
	<li>Been allowed to accept Object (opening the door to reuse other specs)</li>
</ul>

<p>The Filter module will be recast for the 2.3.x release allowing it to work on more data types then just Features. This opens up a lot of exciting opportunities for reuse. The Catalog specification calls for the use of Filter 1.1 against metadata for example.</p>

<h3>Status on <a class="confluence-link" href="/display/GEOTOOLS/2.4.x" data-linked-resource-id="65815" data-linked-resource-type="page" data-linked-resource-default-alias="2.4.x" data-base-url="http://docs.codehaus.org">2.4.x</a></h3>

<p>For the <a class="confluence-link" href="/display/GEOTOOLS/2.4.x" data-linked-resource-id="65815" data-linked-resource-type="page" data-linked-resource-default-alias="2.4.x" data-base-url="http://docs.codehaus.org">2.4.x</a> branch the Filter module has:</p>
<ul class="alternate">
	<li>TBD (some fixes are being back ported, and may move to the 2.3.x list)</li>
</ul>

<h3>Status on Feature Model branch</h3>

<p>For the <a class="confluence-link unresolved" data-content-title="FM" data-linked-resource-default-alias="FM" href="#">FM</a> branch the Filter module has been:</p>
<ul class="alternate">
	<li>backed onto JXPath for real XPath support</li>
</ul>

<p>Thanks to Gabriel and Justin for all their hard work on this one.</p>

<h3>Outstanding Issues</h3>

<p>In the geotools 2.3.x timeframe we will be making use of the the GeoAPI filter/expression interfaces, as such it is useful to track their progress:</p>
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