01: /*
02: * Licensed to the Apache Software Foundation (ASF) under one or more
03: * contributor license agreements. See the NOTICE file distributed with
04: * this work for additional information regarding copyright ownership.
05: * The ASF licenses this file to You under the Apache License, Version 2.0
06: * (the "License"); you may not use this file except in compliance with
07: * the License. You may obtain a copy of the License at
08: *
09: * http://www.apache.org/licenses/LICENSE-2.0
10: *
11: * Unless required by applicable law or agreed to in writing, software
12: * distributed under the License is distributed on an "AS IS" BASIS,
13: * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14: * See the License for the specific language governing permissions and
15: * limitations under the License.
16: *
17: * $Header:$
18: */
19: package org.apache.beehive.controls.api.events;
20:
21: import java.lang.reflect.InvocationTargetException;
22:
23: import org.apache.beehive.controls.api.context.ControlHandle;
24:
25: /**
26: * The EventDispatcher interface defines the method signature that a container supporting
27: * the external dispatch of Control events would implement.
28: */
29: public interface EventDispatcher {
30: /**
31: * Dispatches a Control event to a target control.
32: * @param target the target control
33: * @param event the event to deliver to the control
34: * @param args the parameters to the control event
35: * @throws IllegalAccessException the underlying event method is not accessible due to
36: * access control.
37: * @throws IllegalArgumentException the target is not valid, the event is not a valid event
38: * type for the requested target, or the argument types do not match the event
39: * signature.
40: * @throws InvocationTargetException wraps any exception thrown by the underlying event
41: * handler.
42: */
43: public Object dispatchEvent(ControlHandle target, EventRef event,
44: Object[] args) throws IllegalAccessException,
45: IllegalArgumentException, InvocationTargetException;
46: }
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