1/*
2 * Copyright (c) 1997, 2011, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.  Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26package java.beans;
27
28/**
29 * <p>
30 * This interface is intended to be implemented by, or delegated from, instances
31 * of java.beans.beancontext.BeanContext, in order to propagate to its nested hierarchy
32 * of java.beans.beancontext.BeanContextChild instances, the current "designTime" property.
33 * <p>
34 * The JavaBeans&trade; specification defines the notion of design time as is a
35 * mode in which JavaBeans instances should function during their composition
36 * and customization in a interactive design, composition or construction tool,
37 * as opposed to runtime when the JavaBean is part of an applet, application,
38 * or other live Java executable abstraction.
39 *
40 * @author Laurence P. G. Cable
41 * @since 1.2
42 *
43 * @see java.beans.beancontext.BeanContext
44 * @see java.beans.beancontext.BeanContextChild
45 * @see java.beans.beancontext.BeanContextMembershipListener
46 * @see java.beans.PropertyChangeEvent
47 */
48
49public interface DesignMode {
50
51    /**
52     * The standard value of the propertyName as fired from a BeanContext or
53     * other source of PropertyChangeEvents.
54     */
55
56    static String PROPERTYNAME = "designTime";
57
58    /**
59     * Sets the "value" of the "designTime" property.
60     * <p>
61     * If the implementing object is an instance of java.beans.beancontext.BeanContext,
62     * or a subinterface thereof, then that BeanContext should fire a
63     * PropertyChangeEvent, to its registered BeanContextMembershipListeners, with
64     * parameters:
65     * <ul>
66     *    <li>{@code propertyName} - {@code java.beans.DesignMode.PROPERTYNAME}
67     *    <li>{@code oldValue} - previous value of "designTime"
68     *    <li>{@code newValue} - current value of "designTime"
69     * </ul>
70     * Note it is illegal for a BeanContextChild to invoke this method
71     * associated with a BeanContext that it is nested within.
72     *
73     * @param designTime  the current "value" of the "designTime" property
74     * @see java.beans.beancontext.BeanContext
75     * @see java.beans.beancontext.BeanContextMembershipListener
76     * @see java.beans.PropertyChangeEvent
77     */
78
79    void setDesignTime(boolean designTime);
80
81    /**
82     * A value of true denotes that JavaBeans should behave in design time
83     * mode, a value of false denotes runtime behavior.
84     *
85     * @return the current "value" of the "designTime" property.
86     */
87
88    boolean isDesignTime();
89}
90