JDK14/Java14源码在线阅读

/*
 * Copyright (c) 1997, 2011, 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
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 */

package java.beans;

/**
 * <p>
 * This interface is intended to be implemented by, or delegated from, instances
 * of java.beans.beancontext.BeanContext, in order to propagate to its nested hierarchy
 * of java.beans.beancontext.BeanContextChild instances, the current "designTime" property.
 * <p>
 * The JavaBeans&trade; specification defines the notion of design time as is a
 * mode in which JavaBeans instances should function during their composition
 * and customization in a interactive design, composition or construction tool,
 * as opposed to runtime when the JavaBean is part of an applet, application,
 * or other live Java executable abstraction.
 *
 * @author Laurence P. G. Cable
 * @since 1.2
 *
 * @see java.beans.beancontext.BeanContext
 * @see java.beans.beancontext.BeanContextChild
 * @see java.beans.beancontext.BeanContextMembershipListener
 * @see java.beans.PropertyChangeEvent
 */

public interface DesignMode {

    /**
     * The standard value of the propertyName as fired from a BeanContext or
     * other source of PropertyChangeEvents.
     */

    static String PROPERTYNAME = "designTime";

    /**
     * Sets the "value" of the "designTime" property.
     * <p>
     * If the implementing object is an instance of java.beans.beancontext.BeanContext,
     * or a subinterface thereof, then that BeanContext should fire a
     * PropertyChangeEvent, to its registered BeanContextMembershipListeners, with
     * parameters:
     * <ul>
     *    <li>{@code propertyName} - {@code java.beans.DesignMode.PROPERTYNAME}
     *    <li>{@code oldValue} - previous value of "designTime"
     *    <li>{@code newValue} - current value of "designTime"
     * </ul>
     * Note it is illegal for a BeanContextChild to invoke this method
     * associated with a BeanContext that it is nested within.
     *
     * @param designTime  the current "value" of the "designTime" property
     * @see java.beans.beancontext.BeanContext

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