+++ /dev/null
-/* java.beans.beancontext.BeanContextServiceProvider
- 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., 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.beancontext;
-
-import java.util.Iterator;
-
-/**
- * An actual factory for services.
- * <P>
- *
- * It is the <code>BeanContextServiceProvider</code>'s responsibility to
- * register itself with whatever <code>BeanContextServices</code> object
- * it wishes to provide services through using the
- * <code>addService()</code> method.
- * <P>
- *
- * If for some reason it can no longer provide services for a particular
- * class, this class must invoke
- * <code>BeanContextServices.revokeService(serviceClass,this,true)</code>
- * for all the places it has registered the service.
- *
- * @author John Keiser
- * @since JDK1.2
- */
-
-public interface BeanContextServiceProvider {
- /**
- * Get a service.
- * Called from <code>BeanContextServices.getService().
- * <P>
- *
- * If the requested service class is not available, or if this
- * <code>BeanContextServiceProvider</code> chooses not honor the
- * request for some reason, then this method will return
- * <code>null</code>.
- * <P>
- *
- * This method may throw unchecked exceptions, so watch out.
- *
- * @param services the <code>BeanContextServices</code> that wants
- * to get the service. 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.
- * @return an instance of <code>serviceClass</code> (such that
- * <code>instanceof</code> serviceClass is true), or
- * <code>null</code>.
- * @see java.beans.beancontext.BeanContextServices#getService(java.beans.beancontext.BeanContextChild,java.lang.Object,java.lang.Class,java.lang.Object,java.beans.beancontext.BeanContextServiceRevokedListener)
- */
- public Object getService(BeanContextServices services, Object requestor, Class serviceClass, Object serviceSelector);
-
- /**
- * Release the service.
- * <P>
- *
- * Called by <code>BeanContextServices.releaseService()</code>.
- * <P>
- *
- * Most <code>BeanContextServiceProvider</code>s won't have to do
- * anything here.
- *
- * @param services the <code>BeanContextServices</code> that wants
- * to release the service. Only weak references to this will
- * be retained, and it will never be changed, only queried
- * in a read-only manner.
- * @param requestor the original requestor of the service.
- * @param service the service to relinquish
- * @see java.beans.beancontext.BeanContextServices#releaseService(java.beans.beancontext.BeanContextChild,java.lang.Object,java.lang.Object)
- */
- public void releaseService(BeanContextServices services, Object requestor, Object service);
-
- /**
- * Get a list of valid service selectors for the specified service class.
- * This method is called from
- * <code>BeanContextServices.getCurrentServiceSelectors()</code>.
- * <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 services the <code>BeanContextServices</code> that wants
- * to get the service selectors. Only weak references to this will
- * be retained, and it will never be changed, only queried
- * in a read-only manner.
- * @param serviceClass the service class to get selectors for.
- * @return a list of valid service selectors for the service
- * class, or <code>null</code>.
- * @see java.beans.beancontext.BeanContextServices#getCurrentServiceSelectors(java.lang.Class)
- */
- public Iterator getCurrentServiceSelectors(BeanContextServices services, Class serviceClass);
-}
projects / msp430-gcc.git / blobdiff