org.springframework.webflow.engine.support
Class BeanFactoryFlowVariable

java.lang.Object
  org.springframework.webflow.engine.AnnotatedObject
      org.springframework.webflow.engine.FlowVariable
          org.springframework.webflow.engine.support.BeanFactoryFlowVariable

All Implemented Interfaces:

java.io.Serializable, Annotated

public class BeanFactoryFlowVariable
extends FlowVariable

A concrete flow variable subclass that obtains variable values from a Spring BeanFactory.

Author:

Keith Donald

See Also:

Serialized Form

Field Summary

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

CAPTION_PROPERTY, DESCRIPTION_PROPERTY

Constructor Summary

BeanFactoryFlowVariable(java.lang.String variableName, java.lang.String beanName, org.springframework.beans.factory.BeanFactory beanFactory, ScopeType scope)
Creates a new bean factory flow variable.

Method Summary

protected java.lang.Object

createVariableValue(RequestContext context) Hook method that needs to be implemented by subclasses to calculate the value of this flow variable based on the information available in the request context.

Methods inherited from class org.springframework.webflow.engine.FlowVariable

create, equals, getName, getScope, hashCode, toString

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

getAttributeMap, getAttributes, getCaption, getDescription, setCaption, setDescription

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

BeanFactoryFlowVariable

public BeanFactoryFlowVariable(java.lang.String variableName,
                               java.lang.String beanName,
                               org.springframework.beans.factory.BeanFactory beanFactory,
                               ScopeType scope)

Creates a new bean factory flow variable.

Parameters:

variableName - the variable name

beanName - the bean name, will default to the variable name if not specified

beanFactory - the bean factory where initial variable values will be obtained

scope - the variable scope

Method Detail

createVariableValue

protected java.lang.Object createVariableValue(RequestContext context)

Description copied from class: FlowVariable

Hook method that needs to be implemented by subclasses to calculate the value of this flow variable based on the information available in the request context.

Specified by:

createVariableValue in class FlowVariable

Parameters:

context - the flow execution request context

Returns:

the flow variable value