+++ /dev/null
-/* 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.
-
-Linking this library statically or dynamically with other modules is
-making a combined work based on this library. Thus, the terms and
-conditions of the GNU General Public License cover the whole
-combination.
-
-As a special exception, the copyright holders of this library give you
-permission to link this library with independent modules to produce an
-executable, regardless of the license terms of these independent
-modules, and to copy and distribute the resulting executable under
-terms of your choice, provided that you also meet, for each linked
-independent module, the terms and conditions of the license of that
-module. An independent module is a module which is not derived from
-or based on this library. If you modify this library, you may extend
-this exception to your version of the library, but you are not
-obligated to do so. If you do not wish to do so, delete this
-exception statement from your version. */
-
-
-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;
- }
- }
-
- if(bean instanceof Applet) {
- Applet a = (Applet)bean;
- //a.setAppletContext(???);
- //a.setStub(???);
- if(serStream == null) {
- a.init();
- }
- }
-
- 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;
- }
-}
projects / msp430-gcc.git / blobdiff