org.springframework.webflow.executor.jsf
Class FlowPropertyResolver

java.lang.Object
  javax.faces.el.PropertyResolver
      org.springframework.webflow.executor.jsf.AbstractFlowExecutionPropertyResolver
          org.springframework.webflow.executor.jsf.FlowPropertyResolver

public class FlowPropertyResolver
extends AbstractFlowExecutionPropertyResolver

Custom property resolver that resolves flow session scope attributes of the current flow execution. This resolver will also create and set the attribute value to a bean from the root Spring Web Application Context if the value does not already exist, allowing for lazy-initialized binding variables. Designed mainly to be used with the FlowVariableResolver. This is the original property resolver implemented with Spring Web Flow 1.0. In general, prefer DelegatingFlowVariableResolver or FlowExecutionVariableResolver over use of this class. Also, consider use of the DelegatingVariableResolver as an alternative to accessing lazy-initialized binding variables managed by a Spring application context that uses custom bean scopes.

Author:

Colin Sampaleanu, Keith Donald

Constructor Summary

FlowPropertyResolver(javax.faces.el.PropertyResolver resolverDelegate)
Creates a new flow execution property resolver that resolves flow scope attributes.

Method Summary

protected java.lang.Object	doGetAttribute(FlowExecution execution, java.lang.String attributeName) Gets the value of the flow execution attribute.
protected java.lang.Class	doGetAttributeType(FlowExecution execution, java.lang.String attributeName) Gets the type of value returned by the flow execution attribute.
protected void	doSetAttribute(FlowExecution execution, java.lang.String attributeName, java.lang.Object attributeValue) Sets the value of the flow execution attribute.
protected org.springframework.web.context.WebApplicationContext	getWebApplicationContext(javax.faces.context.FacesContext facesContext) Retrieve the web application context to delegate bean name resolution to.

Methods inherited from class org.springframework.webflow.executor.jsf.AbstractFlowExecutionPropertyResolver

getResolverDelegate, getType, getType, getValue, getValue, isReadOnly, isReadOnly, setValue, setValue

Methods inherited from class java.lang.Object

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

Constructor Detail

FlowPropertyResolver

public FlowPropertyResolver(javax.faces.el.PropertyResolver resolverDelegate)

Creates a new flow execution property resolver that resolves flow scope attributes.

Parameters:

resolverDelegate - the resolver to delegate to when the property is not a flow execution attribute

Method Detail

doGetAttributeType

protected java.lang.Class doGetAttributeType(FlowExecution execution,
                                             java.lang.String attributeName)

Description copied from class: AbstractFlowExecutionPropertyResolver

Gets the type of value returned by the flow execution attribute.

Specified by:

doGetAttributeType in class AbstractFlowExecutionPropertyResolver

Parameters:

execution - the flow execution

attributeName - the name of the attribute

Returns:

the type of value returned by the attribute

doGetAttribute

protected java.lang.Object doGetAttribute(FlowExecution execution,
                                          java.lang.String attributeName)

Description copied from class: AbstractFlowExecutionPropertyResolver

Gets the value of the flow execution attribute.

Specified by:

doGetAttribute in class AbstractFlowExecutionPropertyResolver

Parameters:

execution - the flow execution

attributeName - the name of the attribute

Returns:

the attribute value

doSetAttribute

protected void doSetAttribute(FlowExecution execution,
                              java.lang.String attributeName,
                              java.lang.Object attributeValue)

Description copied from class: AbstractFlowExecutionPropertyResolver

Sets the value of the flow execution attribute.

Specified by:

doSetAttribute in class AbstractFlowExecutionPropertyResolver

Parameters:

execution - the flow execution

attributeName - the name of the attribute

attributeValue - the attribute value

getWebApplicationContext

protected org.springframework.web.context.WebApplicationContext getWebApplicationContext(javax.faces.context.FacesContext facesContext)

Retrieve the web application context to delegate bean name resolution to. Default implementation delegates to FacesContextUtils.

Parameters:

facesContext - the current JSF context

Returns:

the Spring web application context (never null)

See Also:

FacesContextUtils.getRequiredWebApplicationContext(javax.faces.context.FacesContext)