Perhaps something is getting confused because its the same property
name, elements, with different types (Collection vs. List).
On 4/8/07, Alejandro Scandroli <[EMAIL PROTECTED]> wrote:
Hi
I'm trying to reuse/extend some components and I have some problems
with inherited properties and/or methods.
I did a little test case to show what I'm trying to do.
ComponentC.java
public abstract class ComponentC extends BaseComponent
{
public abstract Collection getElements();
}
ComponentD.java
public abstract class ComponentD extends ComponentC
{
public abstract List getElements();
}
And the test it self.
public class ComponentsReuseTest extends TestCase
{
protected Creator creator = new Creator();
public void testComponentC()
{
ComponentC component = (ComponentC) creator.newInstance(ComponentC.class,
new Object[]{
"elements", new ArrayList()
});
assertNotNull(component);
assertNotNull(component.getElements());
}
public void testComponentD()
{
ComponentD component = (ComponentD) creator.newInstance(ComponentD.class,
new Object[]{
"elements", new ArrayList()
});
assertNotNull(component);
assertNotNull(component.getElements());
}
}
The testComponentD fails with this error message:
org.apache.hivemind.ApplicationRuntimeException: Property elements of
object [EMAIL PROTECTED] is read-only.
at
org.apache.hivemind.util.PropertyAdaptor.write(PropertyAdaptor.java:86)
(....)
Do you find something wrong in what I'm trying to do here? I'm using
Tapestry 4.0.2
BTW, the asset "$template" is enormously useful when you want to
reuse components but change only the java code.
Alejandro.
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TWD Consulting, Inc.
Independent J2EE / Open-Source Java Consultant
Creator and PMC Chair, Apache Tapestry
Creator, Apache HiveMind
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