# Package org.kie.internal.utils

- Interface Summary
  Interface | Description
  --- | ---
  ClassLoaderResolver |
  FastClassLoader |
  KieService |
  ServiceDiscovery |
  ServiceRegistry | Internal Interface
  VariableIndexer<V> | Variable indexer that allows to transform variable instance into other representation (usually string) to be able to use it for queries.

- Class Summary
  Class | Description
  --- | ---
  ChainedProperties | Priority System properties META-INF/ of provided classLoader To improve performance in frequent session creation cases, chained properties can be cached by it's conf file name and requesting classloader.
  ClassLoaderUtil |
  CompositeClassLoader | This is an Internal Drools Class
  KieHelper |
  KieMeta |
  NoDepsClassLoaderResolver |
  OSGiLocator | Maintains a mapping of service names to an ordered set of service providers when running in an OSGi container.
  ServiceRegistryImpl | This is an internal class, not for public consumption.
  ServiceRegistryImpl.FactoryInstantiator<V> |
  ServiceRegistryImpl.ReflectionInstantiator<V> |
  ServiceRegistryImpl.ReturnInstance<V> |

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