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At the realm level IDM API cache layer can be enabled
<realm>
<id>idm_realm</id>
<repository-id-ref>DefaultRepository</repository-id-ref>
<identity-type-mappings>
<user-mapping>USER</user-mapping>
</identity-type-mappings>
<options>
<option>
<name>cache.providerClass</name>
<value>JBossCacheAPICacheProviderImpl</value>
</option>
</options>
</realm>
Cache related options :
cache.providerClass - class implementing APICacheProvider interface
cache.providerRegistryName - id of instantiated APICacheProvider implementation stored in configuration registry
cache.scope - namespace used to store entities in cache. Can be "realm" (default) or "session".