| /* |
| * Copyright (c) 1996, 2015, 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; |
| |
| import java.lang.ref.Reference; |
| import javax.swing.SwingContainer; |
| |
| /** |
| * A BeanDescriptor provides global information about a "bean", |
| * including its Java class, its displayName, etc. |
| * <p> |
| * This is one of the kinds of descriptor returned by a BeanInfo object, |
| * which also returns descriptors for properties, method, and events. |
| * |
| * @since 1.1 |
| */ |
| |
| public class BeanDescriptor extends FeatureDescriptor { |
| |
| private Reference<? extends Class<?>> beanClassRef; |
| private Reference<? extends Class<?>> customizerClassRef; |
| |
| /** |
| * Create a BeanDescriptor for a bean that doesn't have a customizer. |
| * |
| * @param beanClass The Class object of the Java class that implements |
| * the bean. For example sun.beans.OurButton.class. |
| */ |
| public BeanDescriptor(Class<?> beanClass) { |
| this(beanClass, null); |
| } |
| |
| /** |
| * Create a BeanDescriptor for a bean that has a customizer. |
| * |
| * @param beanClass The Class object of the Java class that implements |
| * the bean. For example sun.beans.OurButton.class. |
| * @param customizerClass The Class object of the Java class that implements |
| * the bean's Customizer. For example sun.beans.OurButtonCustomizer.class. |
| */ |
| public BeanDescriptor(Class<?> beanClass, Class<?> customizerClass) { |
| this.beanClassRef = getWeakReference(beanClass); |
| this.customizerClassRef = getWeakReference(customizerClass); |
| |
| String name = beanClass.getName(); |
| while (name.indexOf('.') >= 0) { |
| name = name.substring(name.indexOf('.')+1); |
| } |
| setName(name); |
| |
| JavaBean annotation = beanClass.getAnnotation(JavaBean.class); |
| if (annotation != null) { |
| setPreferred(true); |
| String description = annotation.description(); |
| if (!description.isEmpty()) { |
| setShortDescription(description); |
| } |
| } |
| SwingContainer container = beanClass.getAnnotation(SwingContainer.class); |
| if (container != null) { |
| setValue("isContainer", container.value()); |
| setValue("containerDelegate", container.delegate()); |
| } |
| } |
| |
| /** |
| * Gets the bean's Class object. |
| * |
| * @return The Class object for the bean. |
| */ |
| public Class<?> getBeanClass() { |
| return (this.beanClassRef != null) |
| ? this.beanClassRef.get() |
| : null; |
| } |
| |
| /** |
| * Gets the Class object for the bean's customizer. |
| * |
| * @return The Class object for the bean's customizer. This may |
| * be null if the bean doesn't have a customizer. |
| */ |
| public Class<?> getCustomizerClass() { |
| return (this.customizerClassRef != null) |
| ? this.customizerClassRef.get() |
| : null; |
| } |
| |
| /* |
| * Package-private dup constructor |
| * This must isolate the new object from any changes to the old object. |
| */ |
| BeanDescriptor(BeanDescriptor old) { |
| super(old); |
| beanClassRef = old.beanClassRef; |
| customizerClassRef = old.customizerClassRef; |
| } |
| |
| void appendTo(StringBuilder sb) { |
| appendTo(sb, "beanClass", this.beanClassRef); |
| appendTo(sb, "customizerClass", this.customizerClassRef); |
| } |
| } |