[morph-user] ClassCastException... (fwd)

[Hernan S. <hsi...@pd...>]

I failed to mention:

I'm using Morph 0.8.3

thnx...
hernan

---------- Forwarded message ----------
Date: Tue, 8 Mar 2005 14:55:57 -0800 (PST)
From: Hernan Silberman <hsi...@pd...>
To: mor...@li...
Subject: ClassCastException...


I'm sure I'm doing something wrong here... I'm trying to build a graph 
transformer using a simple Spring context that defines this bean:

<bean
    id="graphTransformer"
    class="net.sf.morph.transform.transformers.DelegatingTransformer">
    <property name="components">
        <list>
            <ref bean="immutableTypesOnlyIdentityConverter"/>
            <ref bean="timeCopier"/>
            <ref bean="collectionCopier"/>
            <ref bean="propertyNameMatchingCopier"/>
            <ref bean="containerCopier"/>
        </list>
    </property>
</bean>


All of the reference beans are very simple bean definitions, for example:

<bean
    name="collectionCopier"
    class="net.sf.morph.transform.copiers.CollectionCopier"/>

The context loads up fine as a FileSystemXmlApplicationContext.  When I 
try to do the following simple conversion in my Test case:

public void testSimpleConvert()
{
    String theSource = new String("Hello");
    String theDest = 
       (String)myGraphTransformer.convert( String.class, theSource );
    assertNotNull(theDest);
    assertEquals(theSource,theDest);
}

...I get the exception below.  I don't get this exception when I build this 
DepegatingTransformer programmatically.  Also, I don't get the exception 
when I leave off the "components" property definition for the graphTransformer 
bean.  I can see DelegatingTransformer is doing a case to Transformer[] which is 
failing.

Please let me know if you spot my error... thanks in advance... Hernan


net.sf.morph.transform.TransformationException: Could not initialize transformer 
net.sf.morph.transform.transformers.DelegatingTransformer@e6f7d2 (class 
net.sf.morph.transform.transformers.DelegatingTransformer)
	at 
net.sf.morph.transform.transformers.BaseTransformer.initialize(BaseTransformer.java:193)
	at 
net.sf.morph.transform.transformers.BaseTransformer.getDestinationClasses(BaseTransformer.java:149)
	at 
net.sf.morph.util.TransformerUtils.isImplicitlyTransformable(TransformerUtils.java:53)
	at 
net.sf.morph.transform.transformers.BaseTransformer.isTransformable(BaseTransformer.java:105)
	at 
net.sf.morph.transform.transformers.BaseTransformer.convert(BaseTransformer.java:216)
	at 
net.sf.morph.transform.transformers.BaseTransformer.convert(BaseTransformer.java:237)
	at 
tests.morph.MorphContextTest.testSimpleConvert(MorphContextTest.java:59)
...(Click for full stack trace)...
Caused by: java.lang.ClassCastException
	at 
net.sf.morph.transform.transformers.DelegatingTransformer.getTransformers(DelegatingTransformer.java:260)
	at 
net.sf.morph.transform.transformers.DelegatingTransformer.getSourceClassesImpl(DelegatingTransformer.java:136)
	at 
net.sf.morph.transform.transformers.BaseTransformer.initialize(BaseTransformer.java:171)
	... 21 more