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cache NULL when clicking on a button
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created by <a href="http://community.jboss.org/people/barbaraboie">barbara b</a> in <i>JBoss Cache</i> - <a href="http://community.jboss.org/message/579791#579791">View the full discussion</a>
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<div class="jive-rendered-content"><p>Hello</p><p>Before I used a previous version of JBoss Cache where I simply could use in every bean:</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"><span _mce_style="font-size: 10pt;" style="FONT-SIZE: 10pt;"><span _mce_style="font-size: 10pt;" style="FONT-SIZE: 10pt;"></span></span> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p> @In(create=true)CacheProvider cacheProvider</p><p>public void method(){</p><p>    ...</p><p>    List) cacheProvider.get("tree-"+id);</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>    if (rubriek == null){</p><p>         cacheProvider.put("tree-"+id,getTree());</p><p>    }</p><p>    ...</p><p>}</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>and the caching worked just fine through the whole site.</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>Now I'm trying to work with JBoss Cache 3.2.5.GA and it's not working. Every time I click on a button, the cache is empty.</p><p>What I did were these steps:</p><p>I started changing the code in each bean into</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>CacheFactory factory = new DefaultCacheFactory();Cache cache = factory.createCache("cache-configuration.xml"); public void method(){    ...    List) cache.get(fqn,"tree");     if (rubriek == null){         cache.put(fqn,"tree",getTree());    }    ...}</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"><span _mce_style="color: #000000;" style="COLOR: #000000;"></span> </p><p><span _mce_style="color: #000000;" style="COLOR: #000000;">When I tried this code, I saw that the cache was each time emptied when I hit a button. I thought I could come because I start in each bean a new Cache by using <em>factory.createCache("cache-configuration.xml")</em></span></p><p style="min-height: 8pt; height: 8pt; padding: 0px;"><span _mce_style="color: #000000;" style="COLOR: #000000;"></span> </p><p><span _mce_style="color: #000000;" style="COLOR: #000000;">So I made a new class that can be used in every bean and so that the cache is only started once</span></p><p style="min-height: 8pt; height: 8pt; padding: 0px;"><span _mce_style="color: #000000;" style="COLOR: #000000;"></span> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"><span _mce_style="color: #000000;" style="COLOR: #000000;"></span> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>public class CacheHelper{</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>     public static CacheFactory  factory = new DefaultCacheFactory();</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><div> </div><p>     public static Cache cache = factory.createCache("cache-configuration.xml"); </p><p>}</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><div><span _mce_style="color: #7f0055; font-size: 10pt;" style="COLOR: #7f0055; FONT-SIZE: 10pt;"><span _mce_style="color: #7f0055; font-size: 10pt;" style="COLOR: #7f0055; FONT-SIZE: 10pt;"><span _mce_style="color: #7f0055; font-size: 10pt;" style="COLOR: #7f0055; FONT-SIZE: 10pt;"><span _mce_style="color: #7f0055; font-size: 10pt;" style="COLOR: #7f0055; FONT-SIZE: 10pt;"><span _mce_style="color: #7f0055; font-size: 10pt;" style="COLOR: #7f0055; FONT-SIZE: 10pt;"></span></span></span></span></span><div> </div></div><br/><br/><span> </span><p style="min-height: 8pt; height: 8pt; padding: 0px;"><span _mce_style="color: #7f0055; font-size: 10pt;" style="COLOR: #7f0055; FONT-SIZE: 10pt;"><span _mce_style="color: #7f0055; font-size: 10pt;" style="COLOR: #7f0055; FONT-SIZE: 10pt;"><span _mce_style="color: #7f0055; font-size: 10pt;" style="COLOR: #7f0055; FONT-SIZE: 10pt;"><span _mce_style="color: #7f0055; font-size: 10pt;" style="COLOR: #7f0055; FONT-SIZE: 10pt;"><span _mce_style="color: #7f0055; font-size: 10pt;" style="COLOR: #7f0055; FONT-SIZE: 10pt;"></span></span></span></span></span> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"><span _mce_style="color: #7f0055; font-size: 10pt;" style="COLOR: #7f0055; FONT-SIZE: 10pt;"><span _mce_style="color: #7f0055; font-size: 10pt;" style="COLOR: #7f0055; FONT-SIZE: 10pt;"><span _mce_style="color: #7f0055; font-size: 10pt;" style="COLOR: #7f0055; FONT-SIZE: 10pt;"><span _mce_style="color: #7f0055; font-size: 10pt;" style="COLOR: #7f0055; FONT-SIZE: 10pt;"><span _mce_style="color: #7f0055; font-size: 10pt;" style="COLOR: #7f0055; FONT-SIZE: 10pt;"></span></span></span></span></span> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><br/><br/><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>public void method(){</p><p>    ...</p><p style="min-height: 8pt; height: 8pt; padding: 0px;">  </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><span> </span><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>but the cache is still empty each time I hit a button.</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>Is there anyone who can tell me what I'm doing wrong?</p><p>Thanks in advance!</p><p>barbara</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>O, and this is my cache-configuration.xml</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><span> </span><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><span> </span><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; 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