org.springframework.webflow.engine.builder
Class TextToTargetStateResolver

java.lang.Object
  org.springframework.binding.convert.support.AbstractConverter
      org.springframework.webflow.engine.builder.TextToTargetStateResolver

All Implemented Interfaces:

org.springframework.binding.convert.Converter

public class TextToTargetStateResolver
extends org.springframework.binding.convert.support.AbstractConverter

Converter that takes an encoded string representation and produces a corresponding TargetStateResolver object.

This converter supports the following encoded forms:

• "stateId" - will result in a TargetStateResolver that always resolves the same state.
• "${stateIdExpression} - will result in a TargetStateResolver that resolves the target state by evaluating an expression against the request context.
• "bean:<id>" - will result in usage of a custom TargetStateResolver bean implementation configured in an external context.

Author:

Keith Donald, Erwin Vervaet

Constructor Summary

TextToTargetStateResolver(FlowServiceLocator flowServiceLocator)
Create a new converter that converts strings to transition target state resolver objects.

Method Summary

protected java.lang.Object	doConvert(java.lang.Object source, java.lang.Class targetClass, org.springframework.binding.convert.ConversionContext context)
java.lang.Class[]	getSourceClasses()
java.lang.Class[]	getTargetClasses()

Methods inherited from class org.springframework.binding.convert.support.AbstractConverter

convert, convert, convert, convert

Methods inherited from class java.lang.Object

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

Constructor Detail

TextToTargetStateResolver

public TextToTargetStateResolver(FlowServiceLocator flowServiceLocator)

Create a new converter that converts strings to transition target state resolver objects. The given conversion service will be used to do all necessary internal conversion (e.g. parsing expression strings).

Method Detail

getSourceClasses

public java.lang.Class[] getSourceClasses()

getTargetClasses

public java.lang.Class[] getTargetClasses()

doConvert

protected java.lang.Object doConvert(java.lang.Object source,
                                     java.lang.Class targetClass,
                                     org.springframework.binding.convert.ConversionContext context)
                              throws java.lang.Exception

Specified by:

doConvert in class org.springframework.binding.convert.support.AbstractConverter

Throws:

java.lang.Exception