43 lines
1.6 KiB
Java
43 lines
1.6 KiB
Java
/*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership.
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* The ASF licenses this file to You under the Apache License, Version 2.0
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* (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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* $Header:$
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*/
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package org.apache.beehive.controls.runtime.bean;
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import java.lang.reflect.Method;
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/**
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* The InvokeListener interface can be implemented by contextual services or helper
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* classes associated with a ControlBean that want pre/post hook notifications of
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* invocations occuring on a ControlBean.
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*
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* Hooking is "read only". An InvokeListener cannot modify the invoked method,
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* arguments, return value or thrown exceptions in any way.
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*/
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public interface InvokeListener extends java.util.EventListener
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{
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/**
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* Called just prior to invoking an operation or callback event on a control.
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*/
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public void preInvoke(Method m, Object [] args);
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/**
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* Called just after inovcation of an operation or callback event on a control
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*/
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public void postInvoke(Object retval, Throwable t);
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}
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