[richfaces-issues] [JBoss JIRA] (RF-13243) CDK: the attribute definition inheritance doesn't work correctly

[Lukáš Fryč (JIRA)]

Lukáš Fryč created RF-13243:
-------------------------------

             Summary: CDK: the attribute definition inheritance doesn't work correctly
                 Key: RF-13243
                 URL: https://issues.jboss.org/browse/RF-13243
             Project: RichFaces
          Issue Type: Bug
      Security Level: Public (Everyone can see)
          Components: cdk
    Affects Versions: cdk-4.5.0.Alpha1
            Reporter: Lukáš Fryč


The inheritance isn't inspected correctly in other cases than basic ones:


{code}
public abstract class C extends A {
}
{code}

{code}
public abstract class A extends UIComponentBase {
}
{code}

{code}
public interface I {
    @Attribute
    String getAttr1();
}
{code}

In this case CDK event doesn't notice there is attribute defined in {{*I*}}.

It can be fixed either by:

* {{C implements I}}.
* moving attribute to {{A}} or directly to {{C}}

----

CDK also takes into account whether we have abstract or concrete implementation:

{code}
public abstract class C extends A {
    
    @Override
    public String getAttr() {
         return ...;
    }
}
{code}

In this case the attribute won't be generated, because it is already implemented.

The inheritance issue get then worse by inappropriate application of attribute's properties in either of those cases:

* {{*C*}} has concrete implementation of {{#getAttr()}}, {{C implements I}}
** then generated component contains generated {{#getAttr()}} even though it's already implemented
* implementation of {{#getAttr()}} is moved to {{A}}
** then {{#getAttr()}}  is again generated even though it's implemented in {{A}}

----

I guess Those issues are caused by incomplete implementation of CDK's reflection scanning mechanisms.

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