/* * @(#)BeanContextProxy.java 1.11 03/12/19 * * Copyright 2004 Sun Microsystems, Inc. All rights reserved. * SUN PROPRIETARY/CONFIDENTIAL. Use is subject to license terms. */ package java.beans.beancontext; /** *

* This interface is implemented by a JavaBean that does * not directly have a BeanContext(Child) associated with * it (via implementing that interface or a subinterface thereof), * but has a public BeanContext(Child) delegated from it. * For example, a subclass of java.awt.Container may have a BeanContext * associated with it that all Component children of that Container shall * be contained within. *

*

* An Object may not implement this interface and the * BeanContextChild interface * (or any subinterfaces thereof) they are mutually exclusive. *

*

* Callers of this interface shall examine the return type in order to * obtain a particular subinterface of BeanContextChild as follows: * * BeanContextChild bcc = o.getBeanContextProxy(); * * if (bcc instanceof BeanContext) { * // ... * } * * or * * BeanContextChild bcc = o.getBeanContextProxy(); * BeanContext bc = null; * * try { * bc = (BeanContext)bcc; * } catch (ClassCastException cce) { * // cast failed, bcc is not an instanceof BeanContext * } * *

*

* The return value is a constant for the lifetime of the implementing * instance *

* @author Laurence P. G. Cable * @version 1.11, 12/19/03 * @since 1.2 * * @see java.beans.beancontext.BeanContextChild * @see java.beans.beancontext.BeanContextChildSupport */ public interface BeanContextProxy { /** * Gets the BeanContextChild (or subinterface) * associated with this object. * @return the BeanContextChild (or subinterface) * associated with this object */ BeanContextChild getBeanContextProxy(); }