96 lines
4.4 KiB
HTML
96 lines
4.4 KiB
HTML
<html>
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<head>
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<title>OSCache -
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Hibernate 2.1 Cache Provider
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</title>
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<link rel="stylesheet" href="styles/site.css" type="text/css" />
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<META http-equiv="Content-Type" content="text/html; charset=UTF-8">
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</head>
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<body>
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<table class="pagecontent" border="0" cellpadding="0" cellspacing="0" width="100%" bgcolor="#ffffff">
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<tr>
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<td valign="top" class="pagebody">
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<p>Patched version of OSCacheProvider.java originally created by Mathias Bogaert.</p>
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<div class="code" style="border-style: solid; "><div class="codeHeader" style="border-bottom-style: solid; "><b>OSCacheProvider.java</b></div><div class="codeContent">
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<pre class="code-java"><span class="code-keyword">import</span> java.util.Properties;
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<span class="code-keyword">import</span> net.sf.hibernate.cache.Cache;
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<span class="code-keyword">import</span> net.sf.hibernate.cache.CacheException;
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<span class="code-keyword">import</span> net.sf.hibernate.cache.CacheProvider;
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<span class="code-keyword">import</span> net.sf.hibernate.cache.Timestamper;
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<span class="code-keyword">import</span> net.sf.hibernate.util.PropertiesHelper;
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<span class="code-keyword">import</span> net.sf.hibernate.util.StringHelper;
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<span class="code-keyword">import</span> com.opensymphony.oscache.base.CacheEntry;
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<span class="code-keyword">import</span> com.opensymphony.oscache.base.Config;
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/**
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* Support <span class="code-keyword">for</span> OpenSymphony OSCache. This implementation assumes
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* that identifiers have well-behaved <tt>toString()</tt> methods.
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*/
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<span class="code-keyword">public</span> class OSCacheProvider <span class="code-keyword">implements</span> CacheProvider {
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/**
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* The <tt>OSCache</tt> refresh period property suffix.
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*/
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<span class="code-keyword">public</span> <span class="code-keyword">static</span> <span class="code-keyword">final</span> <span class="code-object">String</span> OSCACHE_REFRESH_PERIOD = <span class="code-quote">"refresh.period"</span>;
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/**
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* The <tt>OSCache</tt> CRON expression property suffix.
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*/
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<span class="code-keyword">public</span> <span class="code-keyword">static</span> <span class="code-keyword">final</span> <span class="code-object">String</span> OSCACHE_CRON = <span class="code-quote">"cron"</span>;
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<span class="code-keyword">private</span> <span class="code-keyword">static</span> <span class="code-keyword">final</span> Properties OSCACHE_PROPERTIES = <span class="code-keyword">new</span> Config().getProperties();
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/**
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* Builds a <span class="code-keyword">new</span> {@link Cache} instance, and gets it's properties from the OSCache {@link Config}
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* which reads the properties file (<code>oscache.properties</code>) from the classpath.
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* If the file cannot be found or loaded, an the defaults are used.
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*
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* @param region
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* @param properties
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* @<span class="code-keyword">return</span>
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* @<span class="code-keyword">throws</span> CacheException
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*/
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<span class="code-keyword">public</span> Cache buildCache(<span class="code-object">String</span> region, Properties properties) <span class="code-keyword">throws</span> CacheException {
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<span class="code-object">int</span> refreshPeriod = PropertiesHelper.getInt(
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StringHelper.qualify(region, OSCACHE_REFRESH_PERIOD),
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OSCACHE_PROPERTIES,
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CacheEntry.INDEFINITE_EXPIRY
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);
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<span class="code-object">String</span> cron = OSCACHE_PROPERTIES.getProperty( StringHelper.qualify(region, OSCACHE_CRON) );
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<span class="code-comment">// construct the cache
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</span> <span class="code-keyword">return</span> <span class="code-keyword">new</span> OSCache(refreshPeriod, cron, region);
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}
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<span class="code-keyword">public</span> <span class="code-object">long</span> nextTimestamp() {
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<span class="code-keyword">return</span> Timestamper.next();
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}
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/**
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* Callback to perform any necessary initialization of the underlying cache implementation
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* during SessionFactory construction.
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*
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* @param properties current configuration settings.
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*/
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<span class="code-keyword">public</span> void start(Properties properties) <span class="code-keyword">throws</span> CacheException {
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}
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/**
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* Callback to perform any necessary cleanup of the underlying cache implementation
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* during SessionFactory.close().
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*/
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<span class="code-keyword">public</span> void stop() {
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}
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}</pre>
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</div></div>
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</td>
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</tr>
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</table>
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</body>
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</html>
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