obtained gcc-4.6.4.tar.bz2 from upstream website;upstream

verified gcc-4.6.4.tar.bz2.sig;
imported gcc-4.6.4 source tree from verified upstream tarball.

downloading a git-generated archive based on the 'upstream' tag
should provide you with a source tree that is binary identical
to the one extracted from the above tarball.

if you have obtained the source via the command 'git clone',
however, do note that line-endings of files in your working
directory might differ from line-endings of the respective
files in the upstream repository.

1 files changed, 216 insertions, 0 deletions

diff --git a/libjava/classpath/java/beans/beancontext/BeanContextServices.java b/libjava/classpath/java/beans/beancontext/BeanContextServices.java
new file mode 100644
index 000000000..787618ad5
--- /dev/null
+++ b/libjava/classpath/java/beans/beancontext/BeanContextServices.java
@@ -0,0 +1,216 @@
+/* java.beans.beancontext.BeanContextServices
+   Copyright (C) 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., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 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.beancontext;
+
+import java.util.Iterator;
+import java.util.TooManyListenersException;
+
+/**
+ * Allows a <code>BeanContext</code> to provide services to its children.
+ *
+ * @specnote it is unclear whether a <code>BeanContextServices</code>
+ *           should delegate unhandled requests to parents.  I assume so.
+ * @author John Keiser
+ * @since 1.2
+ */
+
+public interface BeanContextServices
+  extends BeanContext, BeanContextServicesListener
+{
+  /**
+   * Register a service to make it available to others.
+   * This class may refuse to add the service based on whatever
+   * information it can gather, including whether the service
+   * provider is trusted.
+   *
+   * @param serviceClass the service class.
+   * @param provider the factory that will actually provide the service.
+   * @return whether the service was added or not.
+   */
+  boolean addService (Class serviceClass,
+                             BeanContextServiceProvider provider);
+
+  /**
+   * Make it so that no one else can use this service.
+   * <P>
+   *
+   * If <code>revokeNow</code> is <code>false</code>, the only
+   * effect of this method is to make all subsequent calls to
+   * <code>getService()</code> on this service class fail.
+   * <P>
+   *
+   * If it is <code>true</code>, a message is also sent out to all
+   * listeners on the service and all references to it are released.
+   *
+   * @param serviceClass the service class to revoke.
+   * @param provider the service provider providing the service class.
+   * @param revokeNow whether to release all current references to
+   *        the service.
+   */
+  void revokeService (Class serviceClass,
+                             BeanContextServiceProvider provider,
+                             boolean revokeNow);
+
+  /**
+   * Release your copy of this service.
+   * <P>
+   *
+   * If all copies of the service's class have been relinquished by
+   * the requestor, the <code>BeanContextServiceRevokedListener</code>
+   * previously registered by <code>getService()</code> will be
+   * unregistered.
+   *
+   * @param requestorChild the original <code>BeanContextChild</code>
+   *        requesting the service.
+   * @param requestor the original requestor of the service.
+   * @param service the service to relinquish
+   * @see #getService(java.beans.beancontext.BeanContextChild,java.lang.Object,java.lang.Class,java.lang.Object,java.beans.beancontext.BeanContextServiceRevokedListener)
+   */
+  void releaseService (BeanContextChild requestorChild, Object requestor,
+                              Object service);
+
+  /**
+   * Get a service from this <code>BeanContextServices</code>.
+   * <P>
+   *
+   * The specified listener will be registered to receive a
+   * revocation notice for the specified serviceClass.  One
+   * notification per service class per requestor object will be
+   * sent.
+   * <P>
+   *
+   * The listener will be unregistered when all services that were
+   * obtained by that requestor for that service class are released.
+   * <P>
+   *
+   * If the requested service class is not available, or if this
+   * <code>BeanContextServices</code> object chooses not honor the
+   * request because the service class has been revoked or for some
+   * other reason, then this method will return <code>null</code>.
+   * <P>
+   *
+   * This method may throw unchecked exceptions, so watch out.
+   *
+   * @specnote it is not specified what happens when two subsequent
+   *           calls are made to <code>getService()</code> with the
+   *           same requestor object and service class but different
+   *           listeners.  Which listener is to be notified?
+   *
+   * @param requestorChild the <code>BeanContextChild</code>
+   *        associated with the requestor.  Typically this will be
+   *        the same as the requestor itself, but since any
+   *        <code>Object</code>, even one outside the hierarchy, may
+   *        make a request, this parameter is necessary.  Only weak
+   *        references to this will be retained, and it will never
+   *        be changed, only queried in a read-only manner.
+   * @param requestor the actual requestor of the service.  Only
+   *        weak references to this will be retained, and it will
+   *        never be changed, only queried in a read-only manner.
+   * @param serviceClass the <code>Class</code> of the service being
+   *        requested.
+   * @param serviceSelector a parameter to customize the service
+   *        returned with.
+   * @param listener a listener that will be notified if the service
+   *        being requested is revoked.
+   * @return an instance of <code>serviceClass</code> (such that
+   *        <code>instanceof</code> serviceClass is true), or
+   *        <code>null</code>.
+   */
+  Object getService (BeanContextChild requestorChild, Object requestor,
+                            Class serviceClass, Object serviceSelector,
+                            BeanContextServiceRevokedListener listener)
+    throws TooManyListenersException;
+
+  /**
+   * Get a list of all service classes supported.
+   * <P>
+   *
+   * This method must synchronize on
+   * <code>BeanContext.globalHierarchyLock</code>.
+   *
+   * @return a list of all service classes supported.
+   * @see java.beans.beancontext.BeanContext#globalHierarchyLock
+   */
+  Iterator getCurrentServiceClasses ();
+
+  /**
+   * Get a list of valid service selectors for the specified service class.
+   * <P>
+   *
+   * If the specified service class does not have a finite number of
+   * valid service selectors, it should return <code>null</code>.
+   * If it takes a general <code>Integer</code> parameter, for
+   * example, you may as well return <code>null</code> or the poor
+   * soul who called this method will be iterating all day.
+   * <P>
+   *
+   * If it has no valid service selectors, it should still return an empty
+   * <code>Iterator</code>.
+   *
+   * @param serviceClass the service class to get selectors for.
+   * @return a list of valid service selectors for the service
+   *         class, or <code>null</code>.
+   */
+  Iterator getCurrentServiceSelectors (Class serviceClass);
+
+  /**
+   * Tell whether the specified service class is available.
+   * Iff getService() could return a non-null value for the
+   * specified service, this method will return <code>true</code>.
+   *
+   * @param serviceClass the service class to check on.
+   * @return whether the specified service class is available.
+   */
+  boolean hasService (Class serviceClass);
+
+  /**
+   * Add a listener on all adds and removes of services.
+   * @param listener the listener to add.
+   */
+  void addBeanContextServicesListener (BeanContextServicesListener listener);
+
+  /**
+   * Remove a listener on all adds and removes of services.
+   * @specnote it is not certain whether this should remove this
+   *           listener if it was specified in
+   *           <code>getService()</code>.
+   * @param listener the listener to add.
+   */
+  void removeBeanContextServicesListener (BeanContextServicesListener listener);
+}