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				    <h1><a name="Home-WelcometotheOSCachewiki."></a>Welcome to the OSCache wiki. </h1>

<p>OSCache is a caching solution that includes a JSP tag library and set of classes to perform fine grained dynamic caching of JSP content, servlet responses or arbitrary objects. It provides both in memory and persistent on disk caches, and can allow your site to have graceful error tolerance (eg if an error occurs like your db goes down, you can serve the cached content so people can still surf the site almost without knowing). Take a look at the great <a href="Feature List.html" title="Feature List">features</a> of OSCache.</p>

<p>This wiki is used for additional information as well as documentation for the latest developing version (see <a href="Change Log.html" title="Change Log">previous releases</a>).</p>

<ul>
	<li><a href="Documentation.html" title="Documentation">Documentation</a>
	<ul>
		<li><a href="Installation Guide.html" title="Installation Guide">Installation Guide</a> - How to install OSCache and where to get it.</li>
		<li><a href="Configuration.html" title="Configuration">Configuration</a> - Configuration options for OSCache.</li>
		<li><a href="http://www.opensymphony.com/oscache/api/" title="Visit page outside Confluence">JavaDoc API</a> - The OSCache API documentation in JavaDoc format.</li>
	</ul>
	</li>
</ul>



<ul>
	<li><a href="https://oscache.dev.java.net/servlets/ProjectDocumentList" title="Visit page outside Confluence">Download</a> - Download Source and Binaries.</li>
</ul>



<ul>
	<li>Versions
	<ul>
		<li><a href="Change Log.html" title="Change Log">Change Log</a> - See what's new in the latest version of OSCache.</li>
		<li><a href="Roadmap.html" title="Roadmap">Roadmap</a> - See the expected future releases of OSCache.</li>
	</ul>
	</li>
</ul>



<ul>
	<li>Contributing
	<ul>
		<li><a href="http://forums.opensymphony.com/forum.jspa?forumID=4" title="Visit page outside Confluence">Support Forum</a></li>
		<li><a href="https://oscache.dev.java.net/servlets/ProjectMailingListList" title="Visit page outside Confluence">Mailing List</a></li>
		<li><a href="https://oscache.dev.java.net/source/browse/oscache/" title="Visit page outside Confluence">CVS Access</a></li>
	</ul>
	</li>
</ul>



<ul>
	<li><a href="Index.html" title="Index">Index</a></li>
</ul>


<p>OSCache's official homepage is <a href="http://www.opensymphony.com/oscache/" title="Visit page outside Confluence">&#104;ttp://www.opensymphony.com/oscache/</a>. There you can find documentation for the latest released version of OSCache.</p>

<h2><a name="Home-MostRecentNews"></a>Most Recent News</h2>

    
                    <div class="greybox" style="background: #f0f0f0; font-weight: bold; text-decoration:none; color: black;">
                <img src="/images/icons/blogentry_16.gif" height="16" width="16" border="0" align="absmiddle" />
                <a href="/display/CACHE/2006/07/22">Saturday, July 22, 2006</a>
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<div class="blogpost" style="margin-bottom: 30px">
    <div class="blogHeading" style="margin-top: 0px; padding-top: 0px"><a style="text-decoration: none; color: black" href="/display/CACHE/2006/07/22/OSCache+2.3.2+Released">OSCache 2.3.2 Released</a></div>

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         <p><span class="nobr"><a href="http://wiki.opensymphony.com/display/CACHE/OSCache+2.3.2" title="Visit page outside Confluence" rel="nofollow">Version 2.3.2<sup><img class="rendericon" src="/images/icons/linkext7.gif" height="7" width="7" align="absmiddle" alt="" border="0"/></sup></a></span> of the popular open-source J2EE cache will be released on 23rd July 2006. </p>

<p>This maintenance release includes one enhancement to the cache groups:</p>

<ul>
	<li>The removeEntry method in the cache removes the entry from its groups now</li>
</ul>


<p>and bug fixes:</p>

<ul>
	<li>Method addGroupMappings leads to inconsistent memory cache if a persistent cache group exists</li>
	<li>Cache group is updated if entry is removed (duplicate)</li>
</ul>


<p>This release will be available at <span class="nobr"><a href="https://oscache.dev.java.net/servlets/ProjectDocumentList?folderID=5683" title="Visit page outside Confluence" rel="nofollow">download area<sup><img class="rendericon" src="/images/icons/linkext7.gif" height="7" width="7" align="absmiddle" alt="" border="0"/></sup></a></span> soon.</p>
        </div>
            <div class="endsection" align="right" style="color: #666666; margin-top: 10px">
        <b>Posted at 22 Jul @ 3:26 AM</b> by
        <img src="/images/icons/user_16.gif" height="16" width="16" border="0" align="absmiddle" title="User Profile: Lars Torunski">
            <a href="/display/~lars%2Bt">Lars Torunski</a>        |
        <img src="/images/icons/comment_16.gif" height="16" width="16" border="0" align="absmiddle">
                    <a href="/display/CACHE/2006/07/22/OSCache+2.3.2+Released?showComments=true#comments">0 comments</a>
        

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                    <div class="greybox" style="background: #f0f0f0; font-weight: bold; text-decoration:none; color: black;">
                <img src="/images/icons/blogentry_16.gif" height="16" width="16" border="0" align="absmiddle" />
                <a href="/display/CACHE/2006/06/19">Monday, June 19, 2006</a>
            </div>
        

<div class="blogpost" style="margin-bottom: 30px">
    <div class="blogHeading" style="margin-top: 0px; padding-top: 0px"><a style="text-decoration: none; color: black" href="/display/CACHE/2006/06/19/OSCache+2.3.1+Released">OSCache 2.3.1 Released</a></div>

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                    </div>
        <div class="wiki-content">
         <p><span class="nobr"><a href="http://wiki.opensymphony.com/display/CACHE/OSCache+2.3.1" title="Visit page outside Confluence" rel="nofollow">Version 2.3.1<sup><img class="rendericon" src="/images/icons/linkext7.gif" height="7" width="7" align="absmiddle" alt="" border="0"/></sup></a></span> of the popular open-source J2EE cache was released on 19th June 2006. </p>

<p>This maintenance release includes one enhancement to the <span class="nobr"><a href="http://wiki.opensymphony.com/display/CACHE/CacheFilter" title="Visit page outside Confluence" rel="nofollow">CacheFilter<sup><img class="rendericon" src="/images/icons/linkext7.gif" height="7" width="7" align="absmiddle" alt="" border="0"/></sup></a></span>:</p>

<ul>
	<li>Default initialization of the Cache-Control <span class="nobr"><a href="http://wiki.opensymphony.com/display/CACHE/CacheFilter#CacheFilter-maxage" title="Visit page outside Confluence" rel="nofollow">max-age<sup><img class="rendericon" src="/images/icons/linkext7.gif" height="7" width="7" align="absmiddle" alt="" border="0"/></sup></a></span></li>
</ul>


<p>and bug fixes:</p>

<ul>
	<li>Cache.flushAll(Date flushDate) won't throw NeedsRefreshException when flush date is not yet reached anymore</li>
	<li>No NoSuchElementException at Cache.putInCache() anymore</li>
</ul>


<p>This release can be <span class="nobr"><a href="https://oscache.dev.java.net/servlets/ProjectDocumentList?folderID=5511" title="Visit page outside Confluence" rel="nofollow">downloaded<sup><img class="rendericon" src="/images/icons/linkext7.gif" height="7" width="7" align="absmiddle" alt="" border="0"/></sup></a></span> now.</p>
        </div>
            <div class="endsection" align="right" style="color: #666666; margin-top: 10px">
        <b>Posted at 19 Jun @ 1:38 PM</b> by
        <img src="/images/icons/user_16.gif" height="16" width="16" border="0" align="absmiddle" title="User Profile: Lars Torunski">
            <a href="/display/~lars%2Bt">Lars Torunski</a>        |
        <img src="/images/icons/comment_16.gif" height="16" width="16" border="0" align="absmiddle">
                    <a href="/display/CACHE/2006/06/19/OSCache+2.3.1+Released?showComments=true#comments">0 comments</a>
        

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                    <div class="greybox" style="background: #f0f0f0; font-weight: bold; text-decoration:none; color: black;">
                <img src="/images/icons/blogentry_16.gif" height="16" width="16" border="0" align="absmiddle" />
                <a href="/display/CACHE/2006/03/06">Monday, March 6, 2006</a>
            </div>
        

<div class="blogpost" style="margin-bottom: 30px">
    <div class="blogHeading" style="margin-top: 0px; padding-top: 0px"><a style="text-decoration: none; color: black" href="/display/CACHE/2006/03/06/OSCache+2.3+Released">OSCache 2.3 Released</a></div>

    <div class="pagesubheading">
                    </div>
        <div class="wiki-content">
         <p><span class="nobr"><a href="http://wiki.opensymphony.com/display/CACHE/OSCache+2.3" title="Visit page outside Confluence" rel="nofollow">Version 2.3<sup><img class="rendericon" src="/images/icons/linkext7.gif" height="7" width="7" align="absmiddle" alt="" border="0"/></sup></a></span> of the popular open-source J2EE cache was released on 6th March 2006. This release includes additional improvements to the <span class="nobr"><a href="http://wiki.opensymphony.com/display/CACHE/CacheFilter" title="Visit page outside Confluence" rel="nofollow">CacheFilter<sup><img class="rendericon" src="/images/icons/linkext7.gif" height="7" width="7" align="absmiddle" alt="" border="0"/></sup></a></span>:</p>

<ul>
	<li>CRON expressions to expire content at specific dates and/or times</li>
	<li>Pluggable EntryRefreshPolicy</li>
	<li>Reduced memory consumption</li>
</ul>


<p>Disk persistence:</p>

<ul>
	<li>Faster disk persistence</li>
	<li>Avoid DiskPersistenceListener deadlocks if process has no rights to delete cache file</li>
</ul>


<p>Further changes are:</p>

<ul>
	<li>new JSP tag <em>addgroups</em></li>
	<li>interface to get a list of the cache event listeners</li>
	<li>commons collection dependency removed</li>
	<li>Java 1.3 support dropped</li>
</ul>


<p>This release can be <span class="nobr"><a href="https://oscache.dev.java.net/servlets/ProjectDocumentList?folderID=4941" title="Visit page outside Confluence" rel="nofollow">downloaded<sup><img class="rendericon" src="/images/icons/linkext7.gif" height="7" width="7" align="absmiddle" alt="" border="0"/></sup></a></span> now.</p>
        </div>
            <div class="endsection" align="right" style="color: #666666; margin-top: 10px">
        <b>Posted at 06 Mar @ 1:00 PM</b> by
        <img src="/images/icons/user_16.gif" height="16" width="16" border="0" align="absmiddle" title="User Profile: Lars Torunski">
            <a href="/display/~lars%2Bt">Lars Torunski</a>        |
        <img src="/images/icons/comment_16.gif" height="16" width="16" border="0" align="absmiddle">
                    <a href="/display/CACHE/2006/03/06/OSCache+2.3+Released?showComments=true#comments">0 comments</a>
        

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