[jboss-jira] [JBoss JIRA] Updated: (JBCACHE-1300) Standardize mechanism for setting defaultClassLoader

[Manik Surtani (JIRA)]

     [ http://jira.jboss.com/jira/browse/JBCACHE-1300?page=all ]

Manik Surtani updated JBCACHE-1300:
-----------------------------------

    Fix Version/s: 2.1.0.GA

> Standardize mechanism for setting defaultClassLoader
> ----------------------------------------------------
>
>                 Key: JBCACHE-1300
>                 URL: http://jira.jboss.com/jira/browse/JBCACHE-1300
>             Project: JBoss Cache
>          Issue Type: Feature Request
>      Security Level: Public(Everyone can see) 
>            Reporter: Brian Stansberry
>         Assigned To: Manik Surtani
>            Priority: Minor
>             Fix For: 2.1.0.GA
>
>
> Right now the default classloader used by the cache's marshaller is fixed to CacheImpl.class.getClassLoader(), with no clear mechanism for users to change that.
> In the Hibernate/JBC testsuite I did the following:
> public class CustomClassLoaderCacheFactory<K, V> extends DefaultCacheFactory<K, V>
> {
>    private ClassLoader customClassLoader;
>    
>    public CustomClassLoaderCacheFactory(ClassLoader customClassLoader)
>    {
>       this.customClassLoader = customClassLoader;
>    }
>    
>    @Override
>    protected void bootstrap(CacheImpl cache, CacheSPI spi, Configuration configuration)
>    {
>       super.bootstrap(cache, spi, configuration);
>       
>       // Replace the deployerClassLoader
>       componentRegistry.registerComponent("deployerClassLoader", customClassLoader, ClassLoader.class);
>    }     
> }
> That works, but seems fragile, e.g .if how super.bootstrap() works changes it could break.  It would be better to have something more standardized; perhaps a property on DefaultCacheFactory that could be set, w/ a guarantee in the DefaultCacheFactory javadoc that it will be used if set.
> Or something else. :-)  Manik, not sure where you're planning to go w/ defaultClassLoader; I'm just throwing this request out there to get the topic in JIRA.
> OT: doing this is great in testsuites, as you can use it to configure a default classloader that can't see some of your test classes, and thus test marshalling.

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