Programatic creation of cache inside AS7

[will.tatam]

What is the correct way to create your own new caches programtically inside Jboss AS7 without editing the configuration of the container by changing it's XML?

All the documentation I have found on AS7 talks about hacking your server to create new caches and then just shows how to lookup this new cache. I've already had this whole argument about whether system admins should be creating things like JMS destinations as part of building an app server or bundled with the app itsself, and thankfully have won so you now get deployable JMS and DS but it looks like Infinispan caches might be the next battle ...

In the past we just created a new cache as if we were standalone, but then injected ChannelFactory so we shared the existing jgroups transport already in use by JBoss AS 5.1.0

[pferraro]

e.g.

{code}@Resource(lookup="java:jboss/infinispan/container/mycontainer")
private final EmbeddedCacheManager manager;
private Cache cache;
private final String cacheName = "...";
@PostConstruct
public void init() {
  ConfigurationBuilder builder = new ConfigurationBuilder();
  // configure builder ...
  this.manager.defineConfiguration(this.cacheName, builder.install());
  this.cache = this.manager.getCache(this.cacheName);
}{code}

[will.tatam]

What is java:jboss/infinispan/container/mycontainer ? Is that an example or is "mycontainer" the name of the CacheManager in AS7 ?

[pferraro]

"mycontainer" is just an example.  All cache containers can be summoned via jndi, using the value specified by the <cache-container jndi-name="..."/> attribute; or, if undefined, via the default name: java:jboss/infinispan/container/[container-name]

[will.tatam]

So we just create our own cache inside one of the exisitng containers? Where can I find out more about cache-containers ?

[pferraro]

Yes - although you aren't limited to one of the default cache-containers; feel free to add your own within the infinispan subsystem configuration (see standalone[-ha].xml or domain.xml).  The AS creates an EmbeddedCacheManager (on demand) for every <cache-container/> listed in the infinispan subsystem configuration.

[will.tatam]

javax.annotation.Resource does not contain lookup

[pferraro]

http://docs.oracle.com/javaee/6/api/javax/annotation/Resource.html

[will.tatam]

Thanks, sounds like I must have an EE5 version of Resource leaking into my classpath from somewhere, despite using the recommended BOMs

[will.tatam]

I tried to work around the issue with @Resource by doing an old fashioned JNDI lookup, but it says "service service jboss.naming.context.java.jboss.infinispan.container.cluster is not started"

[will.tatam]

Found the issue with @Resource(lookup=""), see http://java-abwaschbar.blogspot.co.uk/2011/01/resource-annotation-and-lookup.html

[will.tatam]

Caused by: java.lang.IllegalArgumentException: Can not set org.infinispan.manager.EmbeddedCacheManager field mypackagename.myclassname.cacheManager to org.jboss.as.clustering.infinispan.DefaultEmbeddedCacheManager

I tried changing to the following, but still see the same error weirdly

@Resource(lookup="java:jboss/infinispan/container/cluster")

DefaultEmbeddedCacheManager cacheManager;

[pferraro]

Smells like a classloader issue.  Are you, by any chance, packaging the infinispan jar with your application?  If so, you should remove it.  The infinispan classes should be loaded from the org.infinispan module bundled with AS7.  Your application should define an explicit dependency on this non-public module via an entry in your MANIFEST.MF:

Dependencies: org.infinispan

For more about classloading in AS7:

https://docs.jboss.org/author/display/AS7/Class+Loading+in+AS7