My first initial commit with all of mine experimental changes.

Dmitry Kabak (userdima committed 13 years ago

Commit d37b88d1 parent 3f5b46618352 files · +2598093 −-8690Browse files

Showing the changes to java/pkg/java/beans/beancontext/BeanContextServices.java (1 of 18352 files). Show all

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java/pkg/java/beans/beancontext/BeanContextServices.java+159−0

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	1	+/*
	2	+ * Copyright (c) 1998, 2004, Oracle and/or its affiliates. All rights reserved.
	3	+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
	4	+ *
	5	+ * This code is free software; you can redistribute it and/or modify it
	6	+ * under the terms of the GNU General Public License version 2 only, as
	7	+ * published by the Free Software Foundation. Oracle designates this
	8	+ * particular file as subject to the "Classpath" exception as provided
	9	+ * by Oracle in the LICENSE file that accompanied this code.
	10	+ *
	11	+ * This code is distributed in the hope that it will be useful, but WITHOUT
	12	+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
	13	+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
	14	+ * version 2 for more details (a copy is included in the LICENSE file that
	15	+ * accompanied this code).
	16	+ *
	17	+ * You should have received a copy of the GNU General Public License version
	18	+ * 2 along with this work; if not, write to the Free Software Foundation,
	19	+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
	20	+ *
	21	+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
	22	+ * or visit www.oracle.com if you need additional information or have any
	23	+ * questions.
	24	+ */
	25	+
	26	+package java.beans.beancontext;
	27	+
	28	+import java.util.Iterator;
	29	+
	30	+import java.util.TooManyListenersException;
	31	+
	32	+import java.beans.beancontext.BeanContext;
	33	+
	34	+import java.beans.beancontext.BeanContextServiceProvider;
	35	+
	36	+import java.beans.beancontext.BeanContextServicesListener;
	37	+
	38	+
	39	+/**
	40	+ * <p>
	41	+ * The BeanContextServices interface provides a mechanism for a BeanContext
	42	+ * to expose generic "services" to the BeanContextChild objects within.
	43	+ * </p>
	44	+ */
	45	+public interface BeanContextServices extends BeanContext, BeanContextServicesListener {
	46	+
	47	+ /**
	48	+ * Adds a service to this BeanContext.
	49	+ * <code>BeanContextServiceProvider</code>s call this method
	50	+ * to register a particular service with this context.
	51	+ * If the service has not previously been added, the
	52	+ * <code>BeanContextServices</code> associates
	53	+ * the service with the <code>BeanContextServiceProvider</code> and
	54	+ * fires a <code>BeanContextServiceAvailableEvent</code> to all
	55	+ * currently registered <code>BeanContextServicesListeners</code>.
	56	+ * The method then returns <code>true</code>, indicating that
	57	+ * the addition of the service was successful.
	58	+ * If the given service has already been added, this method
	59	+ * simply returns <code>false</code>.
	60	+ * @param serviceClass the service to add
	61	+ * @param serviceProvider the <code>BeanContextServiceProvider</code>
	62	+ * associated with the service
	63	+ */
	64	+ boolean addService(Class serviceClass, BeanContextServiceProvider serviceProvider);
	65	+
	66	+ /**
	67	+ * BeanContextServiceProviders wishing to remove
	68	+ * a currently registered service from this context
	69	+ * may do so via invocation of this method. Upon revocation of
	70	+ * the service, the <code>BeanContextServices</code> fires a
	71	+ * <code>BeanContextServiceRevokedEvent</code> to its
	72	+ * list of currently registered
	73	+ * <code>BeanContextServiceRevokedListeners</code> and
	74	+ * <code>BeanContextServicesListeners</code>.
	75	+ * @param serviceClass the service to revoke from this BeanContextServices
	76	+ * @param serviceProvider the BeanContextServiceProvider associated with
	77	+ * this particular service that is being revoked
	78	+ * @param revokeCurrentServicesNow a value of <code>true</code>
	79	+ * indicates an exceptional circumstance where the
	80	+ * <code>BeanContextServiceProvider</code> or
	81	+ * <code>BeanContextServices</code> wishes to immediately
	82	+ * terminate service to all currently outstanding references
	83	+ * to the specified service.
	84	+ */
	85	+ void revokeService(Class serviceClass, BeanContextServiceProvider serviceProvider, boolean revokeCurrentServicesNow);
	86	+
	87	+ /**
	88	+ * Reports whether or not a given service is
	89	+ * currently available from this context.
	90	+ * @param serviceClass the service in question
	91	+ * @return true if the service is available
	92	+ */
	93	+ boolean hasService(Class serviceClass);
	94	+
	95	+ /**
	96	+ * A <code>BeanContextChild</code>, or any arbitrary object
	97	+ * associated with a <code>BeanContextChild</code>, may obtain
	98	+ * a reference to a currently registered service from its
	99	+ * nesting <code>BeanContextServices</code>
	100	+ * via invocation of this method. When invoked, this method
	101	+ * gets the service by calling the getService() method on the
	102	+ * underlying <code>BeanContextServiceProvider</code>.
	103	+ * @param child the <code>BeanContextChild</code>
	104	+ * associated with this request
	105	+ * @param requestor the object requesting the service
	106	+ * @param serviceClass class of the requested service
	107	+ * @param serviceSelector the service dependent parameter
	108	+ * @param bcsrl the
	109	+ * <code>BeanContextServiceRevokedListener</code> to notify
	110	+ * if the service should later become revoked
	111	+ * @throws TooManyListenersException
	112	+ * @return a reference to this context's named
	113	+ * Service as requested or <code>null</code>
	114	+ */
	115	+ Object getService(BeanContextChild child, Object requestor, Class serviceClass, Object serviceSelector, BeanContextServiceRevokedListener bcsrl) throws TooManyListenersException;
	116	+
	117	+ /**
	118	+ * Releases a <code>BeanContextChild</code>'s
	119	+ * (or any arbitrary object associated with a BeanContextChild)
	120	+ * reference to the specified service by calling releaseService()
	121	+ * on the underlying <code>BeanContextServiceProvider</code>.
	122	+ * @param child the <code>BeanContextChild</code>
	123	+ * @param requestor the requestor
	124	+ * @param service the service
	125	+ */
	126	+ void releaseService(BeanContextChild child, Object requestor, Object service);
	127	+
	128	+ /**
	129	+ * Gets the currently available services for this context.
	130	+ * @return an <code>Iterator</code> consisting of the
	131	+ * currently available services
	132	+ */
	133	+ Iterator getCurrentServiceClasses();
	134	+
	135	+ /**
	136	+ * Gets the list of service dependent service parameters
	137	+ * (Service Selectors) for the specified service, by
	138	+ * calling getCurrentServiceSelectors() on the
	139	+ * underlying BeanContextServiceProvider.
	140	+ * @param serviceClass the specified service
	141	+ * @return the currently available service selectors
	142	+ * for the named serviceClass
	143	+ */
	144	+ Iterator getCurrentServiceSelectors(Class serviceClass);
	145	+
	146	+ /**
	147	+ * Adds a <code>BeanContextServicesListener</code> to this BeanContext
	148	+ * @param bcsl the <code>BeanContextServicesListener</code> to add
	149	+ */
	150	+ void addBeanContextServicesListener(BeanContextServicesListener bcsl);
	151	+
	152	+ /**
	153	+ * Removes a <code>BeanContextServicesListener</code>
	154	+ * from this <code>BeanContext</code>
	155	+ * @param bcsl the <code>BeanContextServicesListener</code>
	156	+ * to remove from this context
	157	+ */
	158	+ void removeBeanContextServicesListener(BeanContextServicesListener bcsl);
	159	+}