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Message-ID: <a66e6f730609151312w39687f5ge96e2e8f275f036d@mail.gmail.com>
Date: Fri, 15 Sep 2006 17:12:13 -0300
From: "Marcos Hass W" <marcoshass@gmail.com>
To: "Jakarta Commons Users List" <commons-user@jakarta.apache.org>
Subject: .betwix file assigned to a JDK class
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Hi all,

I have a class that extends
java.beans.beancontext.BeanContextChildSupportits name is
AbstractBean, below a snippet.:


/** <tt>JavaBean</tt> base respons=E1vel pelos mecanismos de notifica=E7=E3=
o de
altera=E7=E3o
 * de propriedades e clonagem. A extens=E3o a partir de
<tt>BeanContextChildSupport</tt>
 * permite que o bean seja posicionado dentro de um <tt>BeanContext</tt> e
esteja
 * apto a questionar propriedades existentes em outros beans presentes
tamb=E9m no
 * contexto.
 *
 * @author marcos
 */
public abstract class AbstractBean extends BeanContextChildSupport
        implements Cloneable, Comparable, Serializable {

    /** Delegate <tt>PropertyChangeSupport</tt> respons=E1vel pela notifica=
=E7=E3o
dos
     * listeners atentos =E0s altera=E7=F5es nas propriedades do
<tt>javabean</tt>.
     *
     * @see <a href=3D"
http://java.sun.com/docs/books/tutorial/javabeans/properties/bound.html">
     *
http://java.sun.com/docs/books/tutorial/javabeans/properties/bound.html</a>
     */
    protected transient PropertyChangeSupport changes =3D new
PropertyChangeSupport(this);

    /** Delegate a <tt>VetoableChangeSupport</tt> respons=E1vel pela
notifica=E7=E3o
     * dos <tt>VetoableChangeListeners</tt> que ir=E3o escutar os valores
alterados
     * e ir=E3o <tt>vetar</tt> ou n=E3o a altera=E7=E3o.
     */
    protected transient VetoableChangeSupport vetoable =3D new
VetoableChangeSupport(this);

    /** Constructor de <code>AbstractBean</code>.*/
    public AbstractBean() {
        super();

        beanContextChildPeer =3D this;

        pcSupport =3D new PropertyChangeSupport(beanContextChildPeer);
        vcSupport =3D new VetoableChangeSupport(beanContextChildPeer);
    }

    public AbstractBean(BeanContextChild bcc) {
        super();

        beanContextChildPeer =3D (bcc !=3D null) ? bcc : this;

        pcSupport =3D new PropertyChangeSupport(beanContextChildPeer);
        vcSupport =3D new VetoableChangeSupport(beanContextChildPeer);
    }

//...

}

I have several bean classes that extend AbstractBean and any time I try to
submit these extended classes to BeanWriter I get a CyclicReferenceExceptio=
n
.
I've discovered that BeanContextChildSupport has some fields that produce
this cyclic problem and for this reason I've associated a
AbstractBean.betwixt file to the AbstractBean class as follows:

<?xml version=3D'1.0' encoding=3D'UTF-8' ?>
<info primitiveTypes=3D'attribute'>

    <element name=3D'abstractbean'>
        <hide property=3D'beanContext'/>
        <hide property=3D'beanContextChildPeer'/>
        <hide property=3D'pcSupport'/>
        <hide property=3D'rejectedSetBCOnce'/>
        <hide property=3D'vcSupport'/>
        <hide property=3D'changes'/>
        <hide property=3D'vetoable'/>
        <addDefaults/>

    </element>

</info>

The problem is that I'm still getting the cyclic problem ;-(
Does someone know what's wrong ?
How do I associate a .betwixt file with the
java.beans.beancontext.BeanContextChildSupport class ?

Thank you very much
Marcos

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