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Java Source Code / Java Documentation » Workflow Engines » spring webflow 1.0.4 » org.springframework.webflow.execution 
Source Cross Reference  Class Diagram Java Document (Java Doc) 


org.springframework.webflow.execution.ScopeType

ScopeType
abstract public class ScopeType extends StaticLabeledEnum (Code)
An enumeration of the core scope types of Spring Web Flow. Provides easy access to each scope by type using ScopeType.getScope(RequestContext) .

A "scope" defines a data structure for storing custom user attributes within a flow execution. Different scope types have different semantics in terms of how long attributes placed in those scope maps remain valid.
author:
   Keith Donald
author:
   Erwin Vervaet



Field Summary
final public static  ScopeTypeCONVERSATION
     The "conversation" scope type.
final public static  ScopeTypeFLASH
     The "flash" scope type.
final public static  ScopeTypeFLOW
     The "flow" scope type.
final public static  ScopeTypeREQUEST
     The "request" scope type.


Method Summary
abstract public  MutableAttributeMapgetScope(RequestContext context)
     Accessor that returns the mutable attribute map for this scope type for a given flow execution request context.
public  ClassgetType()
    

Field Detail
CONVERSATION
final public static ScopeType CONVERSATION(Code)
The "conversation" scope type. Attributes placed in conversation scope are shared by all flow sessions started within a flow execution and live for the life of the entire flow execution (representing a single logical user conversation). When the governing execution ends, any data in conversation scope goes out of scope.



FLASH
final public static ScopeType FLASH(Code)
The "flash" scope type. Attributes placed in flash scope exist through the life of the current request and until the next user event is signaled in a subsequent request. When the next external user event is signaled flash scope is cleared.

Flash scope is typically used to store messages that should be preserved across refreshes of the next view state (for example, on a redirect and any browser refreshes).




FLOW
final public static ScopeType FLOW(Code)
The "flow" scope type. Attributes placed in flow scope exist through the life of an executing flow session, representing an instance a single FlowDefinition flow definition . When the flow session ends any data in flow scope goes out of scope.



REQUEST
final public static ScopeType REQUEST(Code)
The "request" scope type. Attributes placed in request scope exist for the life of the current request into the flow execution. When the request ends any attributes in request scope go out of scope.





Method Detail
getScope
abstract public MutableAttributeMap getScope(RequestContext context)(Code)
Accessor that returns the mutable attribute map for this scope type for a given flow execution request context.
Parameters:
  context - the context representing an executing request the scope map of this type for that request, allowing attributesto be accessed and set



getType
public Class getType()(Code)



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