Spring Web Flow 1.0.5

The public Java Documentation for Spring Web Flow, a framework for modeling and executing user interface flow.

See:
Description

Packages
org.springframework.webflow.action	Common action implementations invokable by flow definitions.
org.springframework.webflow.action.portlet	Action implementations that define logic specific to flows executing in a JSR-168 Portlet environment.
org.springframework.webflow.config	High-level flow system configuration support within a Spring environment.
org.springframework.webflow.context	The external context subsystem for accessing the environment of a client that has called into Spring Web Flow.
org.springframework.webflow.context.portlet	The representation of a client request into Spring Web Flow from a JSR-168 Portlet environment.
org.springframework.webflow.context.servlet	The representation of a client request into Spring Web Flow from an HTTP Servlet environment.
org.springframework.webflow.conversation	The conversation subsystem for beginning and ending conversations that manage the state of user interactions.
org.springframework.webflow.conversation.impl	Conversation manager implementations.
org.springframework.webflow.core	Foundational, generic types usable by all other packages.
org.springframework.webflow.core.collection	Core element collection types used within Spring Web Flow.
org.springframework.webflow.definition	Core, stable abstractions for representing flow definitions.
org.springframework.webflow.definition.registry	The flow definition registry subsystem for managing containers of flow definitions.
org.springframework.webflow.engine	The implementation of the core flow definition artifacts that serve the basis of the flow execution engine.
org.springframework.webflow.engine.builder	The flow builder subsystem for building and assembling executable flow definitions.
org.springframework.webflow.engine.builder.xml	The XML-based flow builder implementation.
org.springframework.webflow.engine.impl	The implementation of Spring Web Flow's flow execution machine.
org.springframework.webflow.engine.support	Support implementations for internal engine-specific types.
org.springframework.webflow.execution	Core, stable abstractions for representing runtime executions of flow definitions.
org.springframework.webflow.execution.factory	Supporting types often used by flow execution factory implementations.
org.springframework.webflow.execution.repository	The flow execution repository subsystem for saving, and restoring managed flow executions.
org.springframework.webflow.execution.repository.continuation	Implementation of continuation-based flow execution repositories.
org.springframework.webflow.execution.repository.support	General purpose implementation assistance for flow execution repositories.
org.springframework.webflow.execution.support	Useful generic support implementations of core flow execution types.
org.springframework.webflow.executor	High-level executors for driving the execution of flow definitions.
org.springframework.webflow.executor.jsf	The integration layer between Spring Web Flow and Java Server Faces (JSF).
org.springframework.webflow.executor.mvc	The integration layer between Spring Web Flow the Spring (Portlet) MVC framework.
org.springframework.webflow.executor.struts	The integration layer between Spring Web Flow and Struts 1.x.
org.springframework.webflow.executor.support	Flow executor implementation support; includes helpers for driving the execution of flows.
org.springframework.webflow.test	Support for testing flows and their associated artifacts.
org.springframework.webflow.test.execution	Support for testing the execution of a flow definition.
org.springframework.webflow.util	General purpose utility classes used internally by the Spring Web Flow system.

The public Java Documentation for Spring Web Flow, a framework for modeling and executing user interface flow.

Spring Web Flow's packages are partitioned across a set of logical layers. Higher layers depend on the layers directly beneath. Lower layers never depend on higher layers.

The layers of Spring Web Flow, from lowest to highest, are shown below:

Layer architecture diagram

The description, subsystems, and source packages of each layer are summarized below:

Execution Core Layer

Contains the central public Spring Web Flow API elements. This includes elements to model flow definitions as well as execute those flow definitions. As the "bottom layer", this layer defines key domain interfaces and is highly stable.

Subsystems

Executor Layer

Contains services called "flow executors" that drive the execution of flow definitions. This layer defines the core FlowExecutor service interface and implementation, as well as adaption code for executing flows in several specific environments. Support for Spring MVC, Struts, and Java Server Faces (JSF) environments is housed here. This layer depends on the stable Execution Core, but is not coupled to the more volatile Execution Engine implementation.

Subsystems

Execution Engine Layer

Contains concrete implementations of the stable Execution Engine abstractions. This layer defines the finite-state machine that carries out runtime flow execution. It also contains a builder subsystem for assembling flows from externalized resources such as XML files.

Subsystems

Test Layer

Contains support code for testing flow executions. Two types of support are provided: stubs for unit testing engine artifacts, and base classes for writing flow execution integration tests. This layer depends on the Execution Core and Execution Engine layers.

Subsystems

System Configuration Layer

Subsystems

Contains support for configuring the flow executor engine using Spring. A Spring 2.0 config schema is provided. This is the top layer and depends on the Execution Core, Executor, and Execution Engine layers.

Spring Configuration Support

Overview

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