| /* |
| * Copyright (c) 1997, 2006, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. Oracle designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Oracle in the LICENSE file that accompanied this code. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| package java.beans.beancontext; |
| |
| import java.beans.PropertyChangeListener; |
| import java.beans.VetoableChangeListener; |
| import java.beans.PropertyVetoException; |
| |
| import java.beans.beancontext.BeanContext; |
| |
| /** |
| * <p> |
| * JavaBeans wishing to be nested within, and obtain a reference to their |
| * execution environment, or context, as defined by the BeanContext |
| * sub-interface shall implement this interface. |
| * </p> |
| * <p> |
| * Conformant BeanContexts shall as a side effect of adding a BeanContextChild |
| * object shall pass a reference to itself via the setBeanContext() method of |
| * this interface. |
| * </p> |
| * <p> |
| * Note that a BeanContextChild may refuse a change in state by throwing |
| * PropertyVetoedException in response. |
| * </p> |
| * <p> |
| * In order for persistence mechanisms to function properly on BeanContextChild |
| * instances across a broad variety of scenarios, implementing classes of this |
| * interface are required to define as transient, any or all fields, or |
| * instance variables, that may contain, or represent, references to the |
| * nesting BeanContext instance or other resources obtained |
| * from the BeanContext via any unspecified mechanisms. |
| * </p> |
| * |
| * @author Laurence P. G. Cable |
| * @since 1.2 |
| * |
| * @see java.beans.beancontext.BeanContext |
| * @see java.beans.PropertyChangeEvent |
| * @see java.beans.PropertyChangeListener |
| * @see java.beans.PropertyVetoException |
| * @see java.beans.VetoableChangeListener |
| */ |
| |
| public interface BeanContextChild { |
| |
| /** |
| * <p> |
| * Objects that implement this interface, |
| * shall fire a java.beans.PropertyChangeEvent, with parameters: |
| * |
| * propertyName "beanContext", oldValue (the previous nesting |
| * <code>BeanContext</code> instance, or <code>null</code>), |
| * newValue (the current nesting |
| * <code>BeanContext</code> instance, or <code>null</code>). |
| * <p> |
| * A change in the value of the nesting BeanContext property of this |
| * BeanContextChild may be vetoed by throwing the appropriate exception. |
| * </p> |
| * @param bc The <code>BeanContext</code> with which |
| * to associate this <code>BeanContextChild</code>. |
| * @throws <code>PropertyVetoException</code> if the |
| * addition of the specified <code>BeanContext</code> is refused. |
| */ |
| void setBeanContext(BeanContext bc) throws PropertyVetoException; |
| |
| /** |
| * Gets the <code>BeanContext</code> associated |
| * with this <code>BeanContextChild</code>. |
| * @return the <code>BeanContext</code> associated |
| * with this <code>BeanContextChild</code>. |
| */ |
| BeanContext getBeanContext(); |
| |
| /** |
| * Adds a <code>PropertyChangeListener</code> |
| * to this <code>BeanContextChild</code> |
| * in order to receive a <code>PropertyChangeEvent</code> |
| * whenever the specified property has changed. |
| * @param name the name of the property to listen on |
| * @param pcl the <code>PropertyChangeListener</code> to add |
| */ |
| void addPropertyChangeListener(String name, PropertyChangeListener pcl); |
| |
| /** |
| * Removes a <code>PropertyChangeListener</code> from this |
| * <code>BeanContextChild</code> so that it no longer |
| * receives <code>PropertyChangeEvents</code> when the |
| * specified property is changed. |
| * |
| * @param name the name of the property that was listened on |
| * @param pcl the <code>PropertyChangeListener</code> to remove |
| */ |
| void removePropertyChangeListener(String name, PropertyChangeListener pcl); |
| |
| /** |
| * Adds a <code>VetoableChangeListener</code> to |
| * this <code>BeanContextChild</code> |
| * to receive events whenever the specified property changes. |
| * @param name the name of the property to listen on |
| * @param vcl the <code>VetoableChangeListener</code> to add |
| */ |
| void addVetoableChangeListener(String name, VetoableChangeListener vcl); |
| |
| /** |
| * Removes a <code>VetoableChangeListener</code> from this |
| * <code>BeanContextChild</code> so that it no longer receives |
| * events when the specified property changes. |
| * @param name the name of the property that was listened on. |
| * @param vcl the <code>VetoableChangeListener</code> to remove. |
| */ |
| void removeVetoableChangeListener(String name, VetoableChangeListener vcl); |
| |
| } |