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Java Source Code / Java Documentation » Workflow Engines » spring webflow 1.0.4 » org.springframework.webflow.engine

Source Cross Reference Class Diagram Java Document (Java Doc)

java.lang .Object

org.springframework.webflow.engine .AnnotatedObject

org.springframework.webflow.engine .State

org.springframework.webflow.engine .TransitionableState

org.springframework.webflow.engine .SubflowState

SubflowState
public class SubflowState extends TransitionableState (Code)
	A transitionable state that spawns a subflow when executed. When the subflow this state spawns ends, the ending result is used as grounds for a state transition out of this state. A subflow state may be configured to map input data from its flow -- acting as the parent flow -- down to the subflow when the subflow is spawned. In addition, output data produced by the subflow may be mapped up to the parent flow when the subflow ends and the parent flow resumes. See the FlowAttributeMapper interface definition for more information on how to do this. The logic for ending a subflow is located in the EndState implementation. See Also: org.springframework.webflow.engine.FlowAttributeMapper See Also: org.springframework.webflow.engine.EndState author: Keith Donald author: Erwin Vervaet

Constructor Summary
public	SubflowState(Flow flow, String id, Flow subflow) Create a new subflow state. Parameters: flow - the owning flow Parameters: id - the state identifier (must be unique to the flow) Parameters: subflow - the subflow to spawn throws: IllegalArgumentException - when this state cannot be added to givenflow, e.g.

Method Summary
protected void	appendToString(ToStringCreator creator)
protected MutableAttributeMap	createSubflowInput(RequestContext context) Create the input data map for the spawned subflow session.
protected ViewSelection	doEnter(RequestControlContext context) Specialization of State's `doEnter` template method that executes behaviour specific to this state type in polymorphic fashion.
public FlowAttributeMapper	getAttributeMapper() Returns the attribute mapper used to map data between the parent and child flow, or null if no mapping is needed.
public Flow	getSubflow() Returns the subflow spawned by this state.
public ViewSelection	onEvent(RequestControlContext context) Called on completion of the subflow to handle the subflow result event as determined by the end state reached by the subflow.
public void	setAttributeMapper(FlowAttributeMapper attributeMapper) Set the attribute mapper used to map model data between the parent and child flow.

Constructor Detail

SubflowState
public SubflowState(Flow flow, String id, Flow subflow) throws IllegalArgumentException(Code)
	Create a new subflow state. Parameters: flow - the owning flow Parameters: id - the state identifier (must be unique to the flow) Parameters: subflow - the subflow to spawn throws: IllegalArgumentException - when this state cannot be added to givenflow, e.g. because the id is not unique See Also: SubflowState.setAttributeMapper(FlowAttributeMapper)

Method Detail

appendToString
protected void appendToString(ToStringCreator creator)(Code)

createSubflowInput
protected MutableAttributeMap createSubflowInput(RequestContext context)(Code)
	Create the input data map for the spawned subflow session. The returned map will be passed to Flow.start(RequestControlContextMutableAttributeMap) .

doEnter
protected ViewSelection doEnter(RequestControlContext context) throws FlowExecutionException(Code)
	Specialization of State's `doEnter` template method that executes behaviour specific to this state type in polymorphic fashion. Entering this state, creates the subflow input map and spawns the subflow in the current flow execution. Parameters: context - the control context for the currently executing flow, usedby this state to manipulate the flow execution a view selection containing model and view information needed torender the results of the state execution throws: FlowExecutionException - if an exception occurs in this state

getAttributeMapper
public FlowAttributeMapper getAttributeMapper()(Code)
	Returns the attribute mapper used to map data between the parent and child flow, or null if no mapping is needed.

getSubflow
public Flow getSubflow()(Code)
	Returns the subflow spawned by this state.

onEvent
public ViewSelection onEvent(RequestControlContext context)(Code)
	Called on completion of the subflow to handle the subflow result event as determined by the end state reached by the subflow.

setAttributeMapper
public void setAttributeMapper(FlowAttributeMapper attributeMapper)(Code)
	Set the attribute mapper used to map model data between the parent and child flow. Can be null if no mapping is needed.

Methods inherited from org.springframework.webflow.engine.TransitionableState

protected void appendToString(ToStringCreator creator)(Code)(Java Doc)
public void exit(RequestControlContext context)(Code)(Java Doc)
public ActionList getExitActionList()(Code)(Java Doc)
public Transition getRequiredTransition(RequestContext context) throws NoMatchingTransitionException(Code)(Java Doc)
public TransitionSet getTransitionSet()(Code)(Java Doc)
public TransitionDefinition[] getTransitions()(Code)(Java Doc)
public ViewSelection onEvent(RequestControlContext context) throws NoMatchingTransitionException(Code)(Java Doc)
public ViewSelection reenter(RequestControlContext context)(Code)(Java Doc)

Fields inherited from org.springframework.webflow.engine.State

final protected Log logger(Code)(Java Doc)

Methods inherited from org.springframework.webflow.engine.State

protected void appendToString(ToStringCreator creator)(Code)(Java Doc)
abstract protected ViewSelection doEnter(RequestControlContext context) throws FlowExecutionException(Code)(Java Doc)
final public ViewSelection enter(RequestControlContext context) throws FlowExecutionException(Code)(Java Doc)
public boolean equals(Object o)(Code)(Java Doc)
public ActionList getEntryActionList()(Code)(Java Doc)
public FlowExecutionExceptionHandlerSet getExceptionHandlerSet()(Code)(Java Doc)
public Flow getFlow()(Code)(Java Doc)
public String getId()(Code)(Java Doc)
public FlowDefinition getOwner()(Code)(Java Doc)
public ViewSelection handleException(FlowExecutionException exception, RequestControlContext context)(Code)(Java Doc)
public int hashCode()(Code)(Java Doc)
public boolean isStartState()(Code)(Java Doc)
public String toString()(Code)(Java Doc)

Fields inherited from org.springframework.webflow.engine.AnnotatedObject

final public static String CAPTION_PROPERTY(Code)(Java Doc)
final public static String DESCRIPTION_PROPERTY(Code)(Java Doc)

Methods inherited from org.springframework.webflow.engine.AnnotatedObject

public MutableAttributeMap getAttributeMap()(Code)(Java Doc)
public AttributeMap getAttributes()(Code)(Java Doc)
public String getCaption()(Code)(Java Doc)
public String getDescription()(Code)(Java Doc)
public void setCaption(String caption)(Code)(Java Doc)
public void setDescription(String description)(Code)(Java Doc)

Methods inherited from java.lang.Object

native protected Object clone() throws CloneNotSupportedException(Code)(Java Doc)
public boolean equals(Object obj)(Code)(Java Doc)
protected void finalize() throws Throwable(Code)(Java Doc)
final native public Class getClass()(Code)(Java Doc)
native public int hashCode()(Code)(Java Doc)
final native public void notify()(Code)(Java Doc)
final native public void notifyAll()(Code)(Java Doc)
public String toString()(Code)(Java Doc)
final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc)
final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc)
final public void wait() throws InterruptedException(Code)(Java Doc)

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