01: // Copyright 2004, 2005 The Apache Software Foundation
02: //
03: // Licensed under the Apache License, Version 2.0 (the "License");
04: // you may not use this file except in compliance with the License.
05: // You may obtain a copy of the License at
06: //
07: // http://www.apache.org/licenses/LICENSE-2.0
08: //
09: // Unless required by applicable law or agreed to in writing, software
10: // distributed under the License is distributed on an "AS IS" BASIS,
11: // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12: // See the License for the specific language governing permissions and
13: // limitations under the License.
14:
15: package org.apache.hivemind.lib;
16:
17: /**
18: * Coordinates propogation of remote events.
19: * Manages a list of
20: * {@link org.apache.hivemind.lib.RemoteExceptionListener} and
21: * will perform notifications on demand. This allows
22: * objects which cache remote data to discard it after a remote exception.
23: *
24: * <p>
25: * This service is available as
26: * <codehivemind.lib.RemoteExceptionCoordinator</code>.
27: *
28: *
29: * @author Howard Lewis Ship
30: */
31:
32: public interface RemoteExceptionCoordinator {
33: public void addRemoteExceptionListener(
34: RemoteExceptionListener listener);
35:
36: public void removeRemoteExceptionListener(
37: RemoteExceptionListener listener);
38:
39: /**
40: * Invoked by an object which has caught a remote exception of some
41: * form.
42: */
43: public void fireRemoteExceptionDidOccur(Object source,
44: Throwable exception);
45: }
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