# Package org.apache.uima.flow

package org.apache.uima.flow

- Related Packages
  Package
  Description
  org.apache.uima
  Apache UIMA
  org.apache.uima.flow.impl
- Class
  Description
  CasFlow_ImplBase
  Convenience base class for Flow objects that use the CAS interface.
  CasFlowController_ImplBase
  Base class to be extended by FlowControllers that use the `CAS` interface.
  FinalStep
  Indicates that a CAS has finished being processed by the aggregate.
  Flow
  A Flow object is responsible for routing a single CAS through an Aggregate Analysis Engine.
  FlowController
  FlowControllers are components that decide how to route CASes within Aggregate Analysis Engines.
  FlowController_ImplBase
  Implementation base class for FlowControllers.
  FlowControllerContext
  A subtype of `UimaContext` used by `FlowController` components.
  FlowControllerDescription
  A `FlowControllerDescription` contains all of the information needed to instantiate and use a `FlowController`.
  JCasFlow_ImplBase
  Convenience base class for Flow objects that use the JCas interface.
  JCasFlowController_ImplBase
  Base class to be extended by FlowControllers that use the `JCas` interface.
  ParallelStep
  Indicates that a CAS should be routed to a multiple AnalysisEngines and that the relative order in which these execute does not matter.
  SimpleStep
  Indicates that a CAS should be routed to a single AnalysisEngine.
  SimpleStepWithResultSpec
  Deprecated.
  For backwards compatibility with Capability Language Flow only.
  Step
  Represents the next destination or destinations to which a CAS should be routed.