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Diffstat (limited to 'libjava/java/beans/Beans.java')
| -rw-r--r-- | libjava/java/beans/Beans.java | 199 |
1 files changed, 0 insertions, 199 deletions
diff --git a/libjava/java/beans/Beans.java b/libjava/java/beans/Beans.java deleted file mode 100644 index 08e5623cf4f..00000000000 --- a/libjava/java/beans/Beans.java +++ /dev/null @@ -1,199 +0,0 @@ -/* java.beans.Beans - Copyright (C) 1998, 1999 Free Software Foundation, Inc. - -This file is part of GNU Classpath. - -GNU Classpath is free software; you can redistribute it and/or modify -it under the terms of the GNU General Public License as published by -the Free Software Foundation; either version 2, or (at your option) -any later version. - -GNU Classpath 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 for more details. - -You should have received a copy of the GNU General Public License -along with GNU Classpath; see the file COPYING. If not, write to the -Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA -02111-1307 USA. - -As a special exception, if you link this library with other files to -produce an executable, this library does not by itself cause the -resulting executable to be covered by the GNU General Public License. -This exception does not however invalidate any other reasons why the -executable file might be covered by the GNU General Public License. */ - - -package java.beans; - -import java.io.*; -// import java.applet.*; -import gnu.java.io.*; - -/** - * <code>Beans</code> provides some helper methods that allow the basic operations of Bean-ness. - * - * @author John Keiser - * @since JDK1.1 - * @version 1.1.0, 29 Jul 1998 - * - */ -public class Beans { - static boolean designTime = false; - static boolean guiAvailable = true; - - - /** - * Once again, we have a java.beans class with only - * static methods that can be instantiated. When - * will the madness end? :) - */ - public Beans() { - } - - /** - * Allows you to instantiate a Bean. This method takes - * a ClassLoader from which to read the Bean and the - * name of the Bean.<P> - * - * The Bean name should be a dotted name, like a class. - * It can represent several things. Beans will search - * for the Bean using the name like this:<P> - * <OL> - * <LI>Searches for a serialized instance of the Bean - * using getResource(), mangling the Bean name by - * replacing the dots with slashes and appending .ser - * (for example, gnu.beans.BlahDeBlah would cause - * Beans to search for gnu/beans/BlahDeBlah.ser using - * getResource()).</LI> - * <LI>Searches for the Bean class using the beanName, - * and then instantiates it with the no-arg constructor. - * At that point, if it is an Applet, it provides it - * with AppletContext and AppletStub, and then calls - * init().</LI> - * </OL> - * @param cl the ClassLoader to use, or <CODE>null</CODE> - * to use the default ClassLoader. - * @param beanName the name of the Bean. - * @return the Bean. - * @XXX - */ - public static Object instantiate(ClassLoader cl, String beanName) throws IOException, ClassNotFoundException { - Object bean; - - InputStream serStream; - if(cl == null) { - serStream = ClassLoader.getSystemResourceAsStream(beanName.replace('.','/')+".ser"); - } else { - serStream = cl.getResourceAsStream(beanName.replace('.','/')+".ser"); - } - if(serStream != null) { - if(cl == null) { - ObjectInputStream ois = new ObjectInputStream(serStream); - bean = ois.readObject(); - } else { - ClassLoaderObjectInputStream ois = new ClassLoaderObjectInputStream(serStream, cl); - bean = ois.readObject(); - } - } else if(cl == null) { - Class beanClass = Class.forName(beanName); - try { - bean = beanClass.newInstance(); - } catch(IllegalAccessException E) { - bean = null; - } catch(InstantiationException E) { - bean = null; - } - } else { - Class beanClass = cl.loadClass(beanName); - try { - bean = beanClass.newInstance(); - } catch(IllegalAccessException E) { - bean = null; - } catch(InstantiationException E) { - bean = null; - } - } - -/* FIXME - Turned off since java.applet doesn't exist for libgcj. - * FIXME if(bean instanceof Applet) { - * FIXME Applet a = (Applet)bean; - * FIXME //a.setAppletContext(???); - * FIXME //a.setStub(???); - * FIXME if(serStream == null) { - * FIXME a.init(); - * FIXME } - * FIXME } - * FIXME ********************************************************/ - - return bean; - } - - /** - * Get the Bean as a different class type. - * This should be used instead of casting to get a new - * type view of a Bean, because in the future there may - * be new types of Bean, even Beans spanning multiple - * Objects. - * @param bean the Bean to cast. - * @param newClass the Class to cast it to. - * @return the Bean as a new view, or if the operation - * could not be performed, the Bean itself. - */ - public static Object getInstanceOf(Object bean, Class newClass) { - return bean; - } - - /** - * Determine whether the Bean can be cast to a different - * class type. - * This should be used instead of instanceof to determine - * a Bean's castability, because in the future there may - * be new types of Bean, even Beans spanning multiple - * Objects. - * @param bean the Bean to cast. - * @param newClass the Class to cast it to. - * @return whether the Bean can be cast to the class type - * in question. - */ - public static boolean isInstanceOf(Object bean, Class newBeanClass) { - return newBeanClass.isInstance(bean); - } - - /** - * Find out whether the GUI is available to use. - * Defaults to true. - * @return whether the GUI is available to use. - */ - public static boolean isGuiAvailable() { - return guiAvailable; - } - - /** - * Find out whether it is design time. Design time means - * we are in a RAD tool. - * Defaults to false. - * @return whether it is design time. - */ - public static boolean isDesignTime() { - return designTime; - } - - /** - * Set whether the GUI is available to use. - * @param guiAvailable whether the GUI is available to use. - */ - public static void setGuiAvailable(boolean guiAvailable) throws SecurityException { - Beans.guiAvailable = guiAvailable; - } - - /** - * Set whether it is design time. Design time means we - * are in a RAD tool. - * @param designTime whether it is design time. - */ - public static void setDesignTime(boolean designTime) throws SecurityException { - Beans.designTime = designTime; - } -} |