org.springframework.webflow.scope
Class AbstractWebFlowScope

java.lang.Object
  org.springframework.webflow.scope.AbstractWebFlowScope

All Implemented Interfaces:

org.springframework.beans.factory.config.Scope

Direct Known Subclasses:

ConversationScope, FlashScope, FlowScope, RequestScope, ViewScope

public abstract class AbstractWebFlowScope
extends java.lang.Object
implements org.springframework.beans.factory.config.Scope

Base class for Scope implementations that access a Web Flow scope from the current request.

Author:

Keith Donald

Field Summary

protected org.apache.commons.logging.Log

logger Logger, usable by subclasses.

Constructor Summary

AbstractWebFlowScope()

Method Summary

java.lang.Object	get(java.lang.String name, org.springframework.beans.factory.ObjectFactory<?> objectFactory)
java.lang.String	getConversationId() Always returns null as most Spring Web Flow scopes do not have obvious conversation ids.
protected RequestContext	getRequiredRequestContext()
protected abstract MutableAttributeMap<java.lang.Object>	getScope() Template method that returns the target scope map.
void	registerDestructionCallback(java.lang.String name, java.lang.Runnable callback) Will not register a destruction callback as Spring Web Flow does not support destruction of scoped beans.
java.lang.Object	remove(java.lang.String name)
java.lang.Object	resolveContextualObject(java.lang.String key)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

logger

protected final org.apache.commons.logging.Log logger

Logger, usable by subclasses.

Constructor Detail

AbstractWebFlowScope

public AbstractWebFlowScope()

Method Detail

get

public java.lang.Object get(java.lang.String name,
                            org.springframework.beans.factory.ObjectFactory<?> objectFactory)

Specified by:

get in interface org.springframework.beans.factory.config.Scope

remove

public java.lang.Object remove(java.lang.String name)

Specified by:

remove in interface org.springframework.beans.factory.config.Scope

getScope

protected abstract MutableAttributeMap<java.lang.Object> getScope()
                                                           throws java.lang.IllegalStateException

Template method that returns the target scope map.

Throws:

java.lang.IllegalStateException - if the scope could not be accessed

getConversationId

public java.lang.String getConversationId()

Always returns null as most Spring Web Flow scopes do not have obvious conversation ids. Subclasses should override this method where conversation ids can be intelligently returned.

Specified by:

getConversationId in interface org.springframework.beans.factory.config.Scope

Returns:

always returns null

resolveContextualObject

public java.lang.Object resolveContextualObject(java.lang.String key)

Specified by:

resolveContextualObject in interface org.springframework.beans.factory.config.Scope

registerDestructionCallback

public void registerDestructionCallback(java.lang.String name,
                                        java.lang.Runnable callback)

Will not register a destruction callback as Spring Web Flow does not support destruction of scoped beans. Subclasses should override this method where where destruction can adequately be accomplished.

Specified by:

registerDestructionCallback in interface org.springframework.beans.factory.config.Scope

Parameters:

name - the name of the bean to register the callback for

callback - the callback to execute

getRequiredRequestContext

protected RequestContext getRequiredRequestContext()