# org.jbpm.process.instance.impl

## Interfaces

- Action
- AssignmentAction
- ConstraintEvaluator
- ContextInstanceFactory
- ReturnValueEvaluator

## Classes

- CancelNodeInstanceAction
- ContextInstanceFactoryRegistry
- DefaultProcessInstanceManager
- DefaultProcessInstanceManagerFactory
- DefaultSingletonProcessInstanceManagerFactory
- MVELAction
- MVELReturnValueEvaluator
- ProcessInstanceImpl
- ReturnValueConstraintEvaluator
- RuleConstraintEvaluator
- XPATHReturnValueEvaluator