| /* |
| * Copyright (c) 1996, 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 |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| package java.beans; |
| |
| /** |
| * The PropertyEditorManager can be used to locate a property editor for |
| * any given type name. This property editor must support the |
| * java.beans.PropertyEditor interface for editing a given object. |
| * <P> |
| * The PropertyEditorManager uses three techniques for locating an editor |
| * for a given type. First, it provides a registerEditor method to allow |
| * an editor to be specifically registered for a given type. Second it |
| * tries to locate a suitable class by adding "Editor" to the full |
| * qualified classname of the given type (e.g. "foo.bah.FozEditor"). |
| * Finally it takes the simple classname (without the package name) adds |
| * "Editor" to it and looks in a search-path of packages for a matching |
| * class. |
| * <P> |
| * So for an input class foo.bah.Fred, the PropertyEditorManager would |
| * first look in its tables to see if an editor had been registered for |
| * foo.bah.Fred and if so use that. Then it will look for a |
| * foo.bah.FredEditor class. Then it will look for (say) |
| * standardEditorsPackage.FredEditor class. |
| * <p> |
| * Default PropertyEditors will be provided for the Java primitive types |
| * "boolean", "byte", "short", "int", "long", "float", and "double"; and |
| * for the classes java.lang.String. java.awt.Color, and java.awt.Font. |
| * |
| * @since 1.1 |
| */ |
| |
| public class PropertyEditorManager { |
| |
| /** |
| * Registers an editor class to edit values of the given target class. |
| * If the editor class is {@code null}, |
| * then any existing definition will be removed. |
| * Thus this method can be used to cancel the registration. |
| * The registration is canceled automatically |
| * if either the target or editor class is unloaded. |
| * <p> |
| * If there is a security manager, its {@code checkPropertiesAccess} |
| * method is called. This could result in a {@linkplain SecurityException}. |
| * |
| * @param targetType the class object of the type to be edited |
| * @param editorClass the class object of the editor class |
| * @throws SecurityException if a security manager exists and |
| * its {@code checkPropertiesAccess} method |
| * doesn't allow setting of system properties |
| * |
| * @see SecurityManager#checkPropertiesAccess |
| */ |
| public static void registerEditor(Class<?> targetType, Class<?> editorClass) { |
| SecurityManager sm = System.getSecurityManager(); |
| if (sm != null) { |
| sm.checkPropertiesAccess(); |
| } |
| ThreadGroupContext.getContext().getPropertyEditorFinder().register(targetType, editorClass); |
| } |
| |
| /** |
| * Locate a value editor for a given target type. |
| * |
| * @param targetType The Class object for the type to be edited |
| * @return An editor object for the given target class. |
| * The result is null if no suitable editor can be found. |
| */ |
| public static PropertyEditor findEditor(Class<?> targetType) { |
| return ThreadGroupContext.getContext().getPropertyEditorFinder().find(targetType); |
| } |
| |
| /** |
| * Gets the package names that will be searched for property editors. |
| * |
| * @return The array of package names that will be searched in |
| * order to find property editors. |
| * <p> The default value for this array is implementation-dependent, |
| * e.g. Sun implementation initially sets to {"sun.beans.editors"}. |
| */ |
| public static String[] getEditorSearchPath() { |
| return ThreadGroupContext.getContext().getPropertyEditorFinder().getPackages(); |
| } |
| |
| /** |
| * Change the list of package names that will be used for |
| * finding property editors. |
| * |
| * <p>First, if there is a security manager, its {@code checkPropertiesAccess} |
| * method is called. This could result in a SecurityException. |
| * |
| * @param path Array of package names. |
| * @exception SecurityException if a security manager exists and its |
| * {@code checkPropertiesAccess} method doesn't allow setting |
| * of system properties. |
| * @see SecurityManager#checkPropertiesAccess |
| */ |
| public static void setEditorSearchPath(String[] path) { |
| SecurityManager sm = System.getSecurityManager(); |
| if (sm != null) { |
| sm.checkPropertiesAccess(); |
| } |
| ThreadGroupContext.getContext().getPropertyEditorFinder().setPackages(path); |
| } |
| } |